Fault Codes List for Cummins Engines

Service technicians have no problem recognising breakdowns and carrying out machine diagnostics, Fault Codes List for Cummins Engines, plus they are familiar with equipment from a variety of manufacturers.

Diagnostic Fault Codes For Cummins Engines

Applies to Engine Models QSB T2, QSC T2, QSL T2, QSM11, QSX15, QSK19, QSK23, QST30, QSK45/60/78.

Note: These fault codes are current at date of publication. Always refer to engine service manual for the latest information related to engine diagnostics and troubleshooting. Contact your local Cummins dealer for more information.

Cummins Inc. announced that it will be unifying its brand strategy across its Power Systems business segment, which provides high-speed engines from 760 – 4400 hp and power generation equipment from 2–3,500 kW, including standby and prime power gen sets, alternators, switchgear and other components.

Fault Severity Level Fault Severity Function Action To Be Taken By Operator
1 Stop Stop Engine Now – Damage Imminent
2 Warning Warning – Engine May Continue to Run, but Must Be Repaired the Same Day
3 Maintenance Maintenance – Repair At The Next PM
4 None- Information Only None – No Lamp Action
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
111
(Red)
S254
12
629
12
Engine Control Module – Critical internal failure X X X X X X X X 3 3 3
112
(Red)
S020
7
635
7
Engine Timing Actuator is not responding to ECM commands X X 2 2 2
113
(Yellow)
S020
3
635
3
Engine Timing Actuator Circuit – shorted high X X X 2 2 2
114
(Yellow)
S020
4
635
4
Engine Timing Actuator Circuit – shorted low X
115
(Red)
P190 2 190
2
Engine Speed/Position Sensor Circuit – lost both of two signals from the magnetic pickup sensor X X X X X X X X 2 2 2
116
(Red)
P156
3
156
3
Fuel Timing Pressure Sensor Circuit – shorted high X X X X 2 2 2
117
(Red)
P156
4
156
4
Fuel Timing Pressure Sensor Circuit – shorted low X X X X 2 2 2
118
(Yellow)
P135
3
135
3
Fuel Pump Delivery Pressure Sensor Circuit – shorted high X X X X 3 3 3
119
(Yellow)
P135
4
135
4
Fuel Pump Delivery Pressure Sensor Circuit – shorted low X X X X 3 3 3
121
(Yellow)
P190 10 190
10
Engine Speed/Position Sensor Circuit – lost one of two signals from the magnetic pickup sensor X X X X X X X 2 2 2
122
(Yellow)
P102
3
102
3
Intake Manifold Pressure Sensor #1 Circuit – shorted high X X X X X X X X 2 2 2
123
(Yellow)
P102
4
102
4
Intake Manifold Pressure Sensor #1 Circuit – shorted low X X X X X X X X 2 2 2
124*
(Yellow)
102
16
High Intake Manifold Pressure Left Bank X 3 3 3
125*
(None)
102
18
Low Intake Manifold Pressure Left Bank X 3 3 3
126*
(Yellow)
1129
16
High Intake Manifold Pressure Right Bank X 3 3 3
127*
(None)
1129
18
Low Intake Manifold Pressure Right Bank X 3 3 3
128*
(None)
1129
3
Right Bank Intake Manifold Pressure Sensor Circuit Failed High X 3 3 3
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
129*
(None)
1129
4
Right Bank Intake Manifold Pressure Sensor Circuit Failed Low X 3 3 3
131
(Red)
P091
3
091
3
Accelerator Pedal Position Sensor Circuit – shorted high X X X X X X X X 2 2 2
132
(Red)
P091
4
091
4
Accelerator Pedal Position Sensor Circuit – shorted low X X X X X X X X 2 2 2
133
(Red)
P029
3
974
3
Remote Accelerator Pedal Position Sensor Circuit – shorted high X X X X X X
133
(Red)
P029
3
29
3
Remote Accelerator Pedal Position Sensor Circuit – shorted high X X 2 2 2
134
(Red)
P029
4
974
4
Remote Accelerator Pedal Position Sensor Circuit – shorted low X X X X X X
134
(Red)
P029
4
29
4
Remote Accelerator Pedal Position Sensor Circuit – shorted low X X 2 2 2
135
(Yellow)
P100
3
100
3
Engine Oil Pressure Sensor Circuit – shorted high X X X X X X X X 2 2 2
136*
(None)
1208
3
Pre Filter Oil Pressure Sensor Circuit Failed High X 3 3 3
137*
(None)
1208
4
Pre Filter Oil Pressure Sensor Circuit Failed Low X 3 3 3
141
(Yellow)
P100
4
100
4
Engine Oil Pressure Sensor Circuit – shorted low X X X X X X X X 2 2 2
143
(Yellow)
P100
1
100
18
Engine Oil Pressure Low – Warning X X X X X X
143
(White)
P100
1
100
1
Engine Oil Pressure Low – Warning X X 1 1 1
144
(Yellow)
P110
3
110
3
Engine Coolant Temperature Sensor Circuit – shorted high X X X X X X X X 2 2 2
145
(Yellow)
P110
4
110
4
Engine Coolant Temperature Sensor Circuit – shorted low X X X X X X X X 2 2 2
146
(Yellow)
P110
0
110
16
Engine Coolant Temperature High – Warning X X X
147
(Red)
P091
8
091
8
Accelerator Pedal Position Sensor Circuit – low frequency X X X X X X X X 2 2 2
148
(Red)
P091
8
091
8
Accelerator Pedal Position Sensor Circuit – high frequency X X X X X X X X 2 2 2
151
(Red)
P110
0
110
0
Engine Coolant Temperature High – Critical X X X X X X
151
(White)
P110
0
110
0
Engine Coolant Temperature High – Critical X X 1 1 1
153
(Yellow)
P105
3
105
3
Intake Manifold Temperature Sensor #1 Circuit – shorted high X X X X X X X X 2 2 2
154
(Yellow)
P105
4
105
4
Intake Manifold Temperature Sensor #1 Circuit – shorted low X X X X X X X X 2 2 2
155
(Red)
P105
0
105
0
Intake Manifold Temperature #1 High – Critical X X X X X X
155
(White)
P105
0
105
0
Intake Manifold Temperature #1 High – Critical X X 1 1 1
156*
(Yellow)
1131
3
Left Bank Rear Intake Manifold Temp Sensor Circuit Failed High 2 2 2
157*
(Yellow)
1131
4
Left Bank Rear Intake Manifold Temp Sensor Circuit Failed Low 2 2 2
158*
(White)
1131
0
High Intake Manifold Temp – Left Bank Rear 1 1 1
159*
(Yellow)
1132
3
Right Bank Front Intake Manifold Temperature Sensor Circuit Failed High 2 2 2
161*
(Yellow)
1132
4
Right Bank Front Intake Manifold Temperature Sensor Circuit Failed Low 2 2 2
162*
(White)
1132
0
High Intake Manifold Temperature – Right Bank Front 1 1 1
163*
(Yellow)
1133
3
Right Bank Rear Intake Manifold Temperature Sensor Circuit Failed High 2 2 2
164*
(Yellow)
1133
4
Right Bank Rear Intake Manifold Temperature Sensor Circuit Failed Low 2 2 2
165*
(White)
1133
0
High Intake Manifold Temperature – Right Bank Rear 1 1 1
166
(Yellow)
S024
3
733
3
Rack Position Sensor #1 Circuit – shorted high X
172
(Red)
S023
6
638
6
Rack Actuator Position #1 Circuit – grounded circuit X
173
(Yellow)
S023
7
638
7
Rack Actuator – mechanically stuck open X
184
(Yellow)
S233
2
609
2
Engine Control Module Identification Input State Error X X X X
185
(Yellow)
S231
2
639
2
Engine Control Module Network Communication Error X
187
(Yellow)
S232
4
620
4
Sensor Supply Voltage #2 Circuit – shorted low X X
211
(None)
S216
11
1484
31
Additional OEM/Vehicle Diagnostic Codes have been logged. Check other ECM’s for DTC’s. X X
211*
(None)
613
14
OEM Component Failure X 3 3 3
212
(Yellow)
P175
3
175
3
Engine Oil Temperature Sensor Circuit – shorted high X X X
212*
(Yellow)
175
3
Engine Oil Temperature Sensor Circuit – shorted high 2 2 2
213
(Yellow)
P175
4
175
4
Engine Oil Temperature Sensor Circuit – shorted low X X X
213*
(Yellow)
175
4
Engine Oil Temperature Sensor Circuit – shorted low 2 2 2
214
(Red)
P175
0
175
0
Engine Oil Temperature High – Critical X X
214*
(White)
175
0
Engine Oil Temperature High – Critical 1 1 1
219
Maint.
P17
1
1380
17
Low Oil Level in the Centinel makeup oil tank X X
219
(White)
P17
1
1380
1
Low Oil Level in the Centinel makeup oil tank X X 2 2 2
221
(Yellow)
P108
3
108
3
Ambient Air Pressure Sensor Circuit – shorted high X X X X X X X 2 2 2
222
(Yellow)
P108
4
108
4
Ambient Air Pressure Sensor Circuit – shorted low X X X X X X X 2 2 2
223
(Yellow)
S085
4
1265
4
Engine Oil Burn Valve Solenoid Circuit – shorted low X X X X 2 2 2
225
(Yellow)
S086
4
1266
4
Engine Oil Replacement Valve Solenoid Circuit – shorted low X X 2 2 2
227
(Yellow)
S232
3
620
3
Sensor Supply Voltage #2 Circuit – shorted high X X
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
231
(Yellow)
P109
3
109
3
Engine Coolant Pressure Sensor Circuit
– shorted high
X X X 2 2 2
232
(Yellow)
P109
4
109
4
Engine Coolant Pressure Sensor Circuit
– shorted low
X X X 2 2 2
233
(Yellow)
P109
1
109
18
Engine Coolant Pressure Low – Warning X
233
(White)
P109
1
109
1
Engine Coolant Pressure Low – Warning X X 1 1 1
234
(Red)
P190
0
190
0
Engine Speed High – Critical X X X X X X X X 3 3 3
235
(Red)
P111
1
111
1
Engine Coolant Level Low – Critical X X X X X X
235
(White)
P111
1
111
1
Engine Coolant Level Low – Critical X X 1 1 1
237
(Yellow)
S030
2
644
2
External Speed Input (Multiple Unit Sychronization) – data incorrect X X X 2 2 2
241
(Yellow)
P084
2
084
2
Vehicle Speed Sensor Circuit – data incorrect X X X X X
242
(Yellow)
P084
10
084
10
Vehicle Speed Sensor Circuit – tampering has been detected X X X X X
243
(Yellow)
P121
4
513
4
Engine Brake Driver #1 Circuit – shorted low X X X
245
(Yellow)
S033
4
647
4
Fan Clutch Circuit – shorted low X X X X X
252
(Yellow)
P098
2
098
2
Engine Oil Level #1 Sensor Circuit – data incorrect 2 2 2
253
(White)
P098
1
098
1
Engine Oil Level #1 Low – Critical 1 1 1
254
(Red)
S017
4
632
4
Fuel Shutoff Valve Circuit – shorted low X X X
254
(None)
S017
4
632
4
Fuel Shutoff Valve Circuit – shorted low X X 2 2 2
255
(Yellow)
S017
3
632
3
Fuel Shutoff Valve Circuit – shorted high X X
259
(Red)
S017
7
632
7
Fuel Shutoff Valve – stuck open X X X X 2 2 2
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
261
(Yellow)
P174
0
174
16
Fuel Temperature High – Warning X
261
(White)
P174
0
174
0
Fuel Temperature High – Warning X X 1 1 1
263
(Yellow)
P174
3
174
3
Fuel Temperature Sensor Circuit – shorted high X X X X 2 2 2
264
(Yellow)
P174
11
174
11
Fuel Temperature Sensor Circuit – data out-of-range X
265
(Yellow)
P174
4
174
4
Fuel Temperature Sensor Circuit – shorted low X X X X 2 2 2
268
(Yellow)
P094
2
94
2
Fuel Pressure Sensor Circuit – data incorrect X X
271
(Yellow)
S126
4
1347
4
High Fuel Pressure Solenoid Valve #1 Circuit – shorted low X X
272
(Yellow)
S126
3
1347
3
High Fuel Pressure Solenoid Valve #1 Circuit – shorted high X X
273
(Yellow)
S127
4
1348
4
High Fuel Pressure Solenoid Valve #2 Circuit – shorted low X X
274
(Yellow)
S127
3
1348
3
High Fuel Pressure Solenoid Valve #2 Circuit – shorted high X X
275
(Yellow)
S126
7
1347
7
Fuel Pumping Element #1 (Front) – mechanically stuck X X
276
(Yellow)
S018
3
633
3
Fuel Injection Control Valve Circuit – shorted high X X
277
(Yellow)
S018
7
633
7
Fuel Injection Control Valve – mechanically stuck X X
278
(Yellow)
P073
11
1075
11
Fuel Priming Pump Control Circuit – shorted high/low X X X
279
(Yellow)
S018
4
633
4
Fuel Injection Control Valve Circuit – shorted low X X
281
(Yellow)
S126
7
1347
7
High Fuel Pressure Solenoid Valve #1 – mechanically stuck X X
282
(Yellow)
S127
7
1348
7
High Fuel Pressure Solenoid Valve #2 – mechanically stuck X X
283
(Yellow)
S221
3
1043
3
Engine Speed/Position Sensor #1 (Crankshaft) Supply Voltage Circuit – shorted high X X X  

 

FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
284
(Yellow)
S221
4
1043
4
Engine Speed/Position Sensor #1 (Crankshaft) Supply Voltage Circuit – shorted low X X X X
285
(Yellow)
S231
9
639
9
SAE J1939 Multiplexing PGN Timeout Error X X X X X
286
(Yellow)
S231
13
639
13
SAE J1939 Multiplexing Configuration Error X X X X X
287
(Red)
P091
2
91
19
SAE J1939 Multiplexing Accelerator Pedal Sensor System Error X X X X X
288
(Red)
P029
2
974
19
SAE J1939 Multiplexing Remote Throttle Data Error X X X X X
292
(White)
P223
14
1083
14
Auxiliary Temperature Sensor Input # 1 Engine Protection – Critical X X 3 3 3
293
(Yellow)
S441
3
441
3
Auxiliary Temperature Sensor Input # 1 Circuit – shorted high
293
(Yellow)
P223
3
1083
3
Auxiliary Temperature Sensor Input # 1 Circuit – shorted high X X 3 3 3
293
(Yellow)
S154
3
1083
3
Auxiliary Temperature Sensor Input # 1 Circuit – shorted high X X
294
(Yellow)
S441
4
441
4
Auxiliary Temperature Sensor Input # 1 Circuit – shorted low
294
(Yellow)
P223
4
1083
4
Auxiliary Temperature Sensor Input # 1 Circuit – shorted low X X 3 3 3
294
(Yellow)
S154
4
1083
4
Auxiliary Temperature Sensor Input # 1 Circuit – shorted low X X
295
(Yellow)
P108
2
108
2
Ambient Air Pressure Sensor Circuit – data incorrect X X
296
(Red)
P223
14
1387
14
Auxiliary Pressure Sensor Input # 2 Engine Protection – Critical X X X
296
(White)
P223
14
1084
14
Auxiliary Pressure Sensor Input # 2 Engine Protection – Critical X X 3 3 3
297
(Yellow)
P223
3
1387
3
Auxiliary Pressure Sensor Input # 2 Circuit – shorted high X X X
297
(Yellow)
P223
3
1084
3
Auxiliary Pressure Sensor Input # 2 Circuit – shorted high X X X X 3 3 3
298
(Yellow)
P223
4
1387
4
Auxiliary Pressure Sensor Input # 2 Circuit – shorted low X X X
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
298
(Yellow)
P223
4
1084
4
Auxiliary Pressure Sensor Input # 2 Circuit – shorted low X X X X 3 3 3
299
(None)
S117
14
1384
31
Engine Shutdown Commanded by J1939 X X 3 3 3
299
(Yellow)
S117
11
1384
31
Engine Shutdown Commanded by J1939 X X
311
(Yellow)
S001
6
651
6
Injector Solenoid Valve Cylinder #1 Circuit – grounded circuit X X
312
(Yellow)
S005
6
655
6
Injector Solenoid Valve Cylinder #5 Circuit – grounded circuit X X
313
(Yellow)
S003
6
653
6
Injector Solenoid Valve Cylinder #3 Circuit – grounded circuit X X
314
(Yellow)
S006
6
656
6
Injector Solenoid Valve Cylinder #6 Circuit – grounded circuit X X
315
(Yellow)
S002
6
652
6
Injector Solenoid Valve Cylinder #2 Circuit – grounded circuit X X
316
(Yellow)
S078
3
931
3
Fuel Supply Pump Actuator Circuit – shorted high X X 3 3 3
318
(Yellow)
S078
7
931
7
Fuel Supply Pump Actuator – mechanically stuck X X 2 2 2
319
Maint.
P251
2
251
2
Real Time Clock – Power Interrupt X X X X X
321
(Yellow)
S004
6
654
6
Injector Solenoid Valve Cylinder #4 Circuit – grounded circuit X
322
(Yellow)
S001
5
651
5
Injector Solenoid Valve Cylinder #1 Circuit – open circuit X
323
(Yellow)
S005
5
655
5
Injector Solenoid Valve Cylinder #5 Circuit – open circuit X
324
(Yellow)
S003
5
653
5
Injector Solenoid Valve Cylinder #3 Circuit – open circuit X
325
(Yellow)
S006
5
656
5
Injector Solenoid Valve Cylinder #6 Circuit – open circuit X
328
(Yellow)
S152
7
1348
7
Fuel Pumping Element #2 (Rear) – mechanically stuck X X
329
(Yellow)
S233
14
1077
14
Fuel System Leakage error X X
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
331
(Yellow)
S002
5
652
5
Injector Solenoid Valve Cylinder #2 Circuit – open circuit X
332
(Yellow)
S004
5
654
5
Injector Solenoid Valve Cylinder #4 Circuit – open circuit X
341
(Yellow)
S253
2
630
2
Engine Control Module – data lost X X
342
(Red)
S253
13
630
13
Engine Control Module – out of calibration X
343
(Yellow)
S254
12
629
12
Engine Control Module – Warning internal hardware failure X X X X X 4 4 4
346
(Yellow)
S253
12
630
12
Engine Control Module – Warning Software error X X X X X 4 4 4
349
(Yellow)
P191
0
191
16
Transmission Output Shaft (Tailshaft) Speed High – Warning X X X X X
349
(Yellow)
P191
0
191
0
Transmission Output Shaft (Tailshaft) Speed High – Warning X X 2 2 2
352
(Yellow)
S232
4
1079
4
Sensor Supply Voltage #1 Circuit – shorted low X X X X X
361
(Red)
S251
3
1076
3
Fuel Pump Control Module, Fuel Control Valve Circuit – shorted high X
362
(Yellow)
S251
4
1076
4
Fuel Pump Control Module, Fuel Control Valve Circuit – shorted low X
363
(Yellow)
S251
7
1076
7
Fuel Pump Control Module, Fuel Control Valve – mechanically stuck X
364
(Yellow)
S233 9 1077
9
Fuel Pump Control Module, CAN Communication Error – abnormal update rate X
365
(Yellow)
S233
4
1077
4
Fuel Pump Control Module, Supply Voltage Circuit – shorted low X
366
(Yellow)
S233
2
1077
2
Fuel Pump Control Module, Supply Voltage Circuit – data incorrect X
367
(Yellow)
P190
11
1078
11
Fuel Pump Control Module, Increment Angle Time Sensor Error X
368
(Yellow)
S254
8
1078
8
Fuel Pump Control Module, Timing Error X
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
369
(Yellow)
P190
2
1078
2
Fuel Pump Control Module, Engine Synchronization Error X
372
(Yellow)
S233
11
1077
11
Fuel Pump Control Module, Idle Validation Error X
373
(Red)
S233
3
1077
3
Fuel Pump Control Module, Fuel Shutoff Error X
374
(Yellow)
S233
12
1077
12
Fuel Pump Control Module, Self-Test Error X
375
(Yellow)
S254
2
629
2
Fuel Pump Control Module, Electronic Calibration Code Error X
376
(Yellow)
S233
13
1077
13
Fuel Pump Control Module, Fueling or Engine Speed Mismatch X
377
(Yellow)
S233
7
1077
7
Fuel Pump Control Module, Stuck Relay Error X
378
(Yellow)
S018
5
633
5
Fueling Actuator #1 Circuit – open circuit X
379
(Yellow)
S018
6
633
6
Fueling Actuator #1 Circuit – grounded circuit X
381
(Yellow)
S237
11
626
11
Intake Air Heater (Relay Enable) #1 Circuit – data incorrect X X X
382
(Yellow)
S237
11
626
11
Intake Air Heater (Relay Enable) #2 Circuit – data incorrect X X X
384
(Yellow)
S237
11
626
11
Start Assist Device Control Circuit Error (Ether Injection) X X 3 3 3
385
(Yellow)
S232
3
620
3
OEM Sensor Supply Voltage Circuit – shorted high X X X
386
(Yellow)
S232
3
1079
3
Sensor Supply Voltage #1 Circuit – shorted high X X X X X
387
(Yellow)
S221
3
1043
3
Accelerator Pedal Position Sensor Supply Voltage Circuit – shorted high X X X X X
389
(Yellow)
S033
11
647
11
Fan Clutch Circuit Error X X X
391
(Yellow)
S017
11
632
11
Fuel Shutoff Valve Supply Voltage error X
394
(Yellow)
S020
5
635
5
Timing Actuator #1 Circuit – open circuit X
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
395
(Yellow)
S020
6
635
6
Timing Actuator #1 Circuit – grounded circuit X
396
(Yellow)
S083
5
1244
5
Fueling Actuator #2 Circuit – open circuit X
397
(Yellow)
S083
6
1244
6
Fueling Actuator #2 Circuit – grounded circuit X
398
(Yellow)
S084
5
1245
5
Timing Actuator #2 Circuit – open circuit X
399
(Yellow)
S084
6
1245
6
Timing Actuator #2 Circuit – grounded circuit X
414*
(Yellow)
S250
9
608
9
Data Communication error over the J1587 data link Circuit X
415
(Red)
P100
1
100
1
Engine Oil Pressure Low – Critical X X X X X X
415
Level1
P100
1
100
1
Engine Oil Pressure Low – Critical X X 1 1 1
418
WIF /
Maint.
P097 0 097
15
Water in Fuel Indicator High – Maintenance X X X X X X
419
(Yellow)
1319
2
Intake Manifold Boost Pressure Imbalance X
422
(Yellow)
P111
2
111
2
Engine Coolant Level Sensor Circuit – data incorrect X X X X X X X X 2 2 2
423
(Yellow)
P156
2
156
2
Fuel Timing Pressure or Timing Actuator Stuck X X X 2 2 2
426
(None)
S231
2
639
2
SAE J1939 datalink – cannot transmit X X
426
(Yellow)
S231
2
639
2
SAE J1939 datalink – cannot transmit X X 3 3 3
426*
(None)
639
2
SAE J1939 datalink – cannot transmit 3 3 3
427
(None)
S231 639
9
SAE J1939 not fast enough X X 4 4 4
428
(Yellow)
P097
3
97
3
Water in Fuel Sensor Circuit – shorted high X X X
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
429
(Yellow)
P097
4
097
4
Water in Fuel Sensor Circuit – shorted low X X X X X X
431
(Yellow)
S230
2
558
2
Accelerator Pedal Idle Validation Circuit
– data incorrect
X X X X X X
431
(Yellow)
P091
2
91
2
Accelerator Pedal Idle Validation Circuit
– data incorrect
X X 3 3 3
432
(Red)
S230
13
558
13
Accelerator Pedal Idle Validation Circuit
– out of calibration
X X X X X X
432
(Red)
P091
13
91
13
Accelerator Pedal Idle Validation Circuit
– out of calibration
X X 3 3 3
433
(Yellow)
P102
2
102
2
Intake Manifold Pressure Sensor Circuit
– data incorrect
X X X X X
434
(Yellow)
S251
2
627
2
Power Lost without Ignition Off X X X X X
435
(Yellow)
P100
2
100
2
Engine Oil Pressure Sensor Circuit – data incorrect X X
441
(Yellow)
P168
1
168
18
Battery #1 Voltage Low – Warning X X X X X X
441
(None)
P168
1
168
1
Battery #1 Voltage Low – Warning X X 3 3 3
442
(Yellow)
P168
0
168
16
Battery #1 Voltage High – Warning X X X X X X
442
(Yellow)
P168
0
168
0
Battery #1 Voltage High – Warning X X 2 2 2
443
(Yellow)
S221
4
1043
4
Accelerator Pedal Position Sensor Supply Voltage Circuit – shorted low X X X X X
444
(Yellow)
S232
1
620
18
OEM Sensor Supply Voltage Low – Warning X X X
446*
(None)
N/A GSP Communication Failure X 4 4 4
447*
(None)
N/A RPC Number Not Supported X 4 4 4
448*
(None)
N/A RPC Argument Mismatch X 4 4 4
449
(Yellow)
P094
0
094
16
Fuel Pressure High – Warning X X X
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
451
(Yellow)
P157
3
157
3
Injector Metering Rail #1 Pressure Sensor Circuit – shorted high X X X
451
(Red)
P157
3
157
3
Injector Metering Rail #1 Pressure Sensor Circuit – shorted high X X 2 2 2
452
(Yellow)
P157
4
157
4
Injector Metering Rail #1 Pressure Sensor Circuit – shorted low X X X
452
(Red)
P157
4
157
4
Injector Metering Rail #1 Pressure Sensor Circuit – shorted low X X 2 2 2
455
(Red)
S018
3
633
3
Fuel Control Valve Circuit – shorted high X X 2 2 2
466
(Yellow)
S032
4
1188
4
Turbocharger #1 Wastegate Control Circuit – shorted low X
467
(Yellow)
S020
2
635
2
Timing Rail Actuator Circuit – data incorrect X X 2 2 2
468
(Yellow)
S018
2
633
2
Fuel Rail Actuator Circuit – data incorrect X X 2 2 2
471
Maint.
P098
1
98
1
Engine Oil Level Low – Maintenance 1 1 1
472
Maint.
P017
2
1380
2
Engine Oil Level #2 Low – Maintenance 3 3 3
473
(Yellow)
P017
2
1380
2
Engine Oil Level #2 Low – Warning 2 2 2
479*
(None)
1318
9
Exhaust Port Temperature Bank Imbalance X
482
(Yellow)
P094
1
094
18
Fuel Pressure Low – Warning X
483
(Yellow)
P129
3
1349
3
Injector Metering Rail #2 Pressure Sensor Circuit – shorted high X
484
(Yellow)
P129
4
1349
4
Injector Metering Rail #2 Pressure Sensor Circuit – shorted low X
485
(Yellow)
P129
0
1349
16
Injector Metering Rail #2 Pressure High – Warning X
486
(Yellow)
P129
1
1349
18
Injector Metering Rail #2 Pressure Low – Warning X
487
(None)
S237
1
626
1
Start Assist Device – Canister Empty (Ether Injection) X X 3 3 3
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
488
(Yellow)
P105
0
105
16
Intake Manifold Temperature High – Warningl X X X
489
(Yellow)
P191
1
191
18
Transmission Output Shaft (Tailshaft) Speed Low – Warning X X X X X
489
(Yellow)
P191
1
191
1
Transmission Output Shaft (Aux Gov) Speed Low – Warning X X 2 2 2
493 S018
13
1076
13
Fuel Pump Calibration Trim Circuit Error X X
496
(Yellow)
S221
11
1043
11
Engine Speed/Position Sensor #2 (Camshaft) Supply Voltage X
497
(Yellow)
S114
2
1377
2
Multiple Unit Synchronization Switch Circuit – data incorrect X X X X X 2 2 2
514
(Red)
S018
7
633
7
Fuel Control Valve – mechanically stuck X X X 2 2 2
515
(Yellow)
P091
3
091
3
Accelerator Pedal Frequency Position Sensor Supply Circuit – shorted high X X X
516
(Yellow)
P091
4
091
4
Accelerator Pedal Frequency Position Sensor Supply Circuit – shorted low X X X
517
(Yellow)
S251
12
1076
12
Fuel Metering Solenoid – bad device X
524
(Yellow)
P113
2
113
2
OEM Alternate Droop Switch Validation
– data incorrect
X X X X
527
(Yellow)
P154
3
702
3
Auxiliary Input/Output #2 Circuit – shorted high X X X X X X
527
(Yellow)
S040
3
702
3
Auxiliary Input/Output #2 Circuit – shorted high X X 2 2 2
528
(Yellow)
P093
2
093
2
OEM Alternate torque validation switch – data incorrect X X X X X X
529
(Yellow)
S051
3
703
3
Auxiliary Input/Output #3 Circuit – shorted high X X X X X X X X 2 2 2
539
(Yellow)
S018
11
633
11
Injector Control Valve Electronic Filter (Transorb) Error X X
546
(Yellow)
P094
3
94
3
Fuel Delivery Pressure Sensor Circuit – shorted high X
547
(Yellow)
P094
4
94
4
Fuel Delivery Pressure Sensor Circuit- shorted low X  

 

FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
551
(Yellow)
S230
4
558
4
Accelerator Pedal Idle Validation Circuit
– shorted low
X X X X X X
551
(Red)
P091
4
091
4
Accelerator Pedal Idle Validation Circuit
– shorted low
X X 2 2 2
553
(Yellow)
P157
0
157
16
Injector Metering Rail #1 Pressure High – warning level X
553
(Red)
P157
0
157
0
Injector Metering Rail #1 Pressure High – warning level X X 2 2 2
554
(Yellow)
P157
2
157
2
Fuel Pressure Sensor Error X X 2 2 2
555
(Yellow)
P022
0
1264
16
Engine Blowby – Warning Level X
555
(White)
P022
0
1264
0
Engine Blowby – Warning Level X X 1 1 1
581
(Yellow)
P015
3
1381
3
Fuel Supply Pump Inlet Pressure Sensor Circuit – shorted high X X X
582
(Yellow)
P015
4
1381
4
Fuel Supply Pump Inlet Pressure Sensor Circuit – shorted low X X X
583
(Yellow)
P015
1
1381
18
Fuel Supply Pump Inlet Pressure Low – warning level X X X
595
(Yellow)
P103
0
103
16
Turbocharger #1 Speed High – warning level X
596
(Yellow)
P167
0
167
16
Electrical Charging System Voltage High
– warning level
X X
597
(Yellow)
P167
1
167
18
Electrical Charging System Voltage Low
– Warning Level
X X
598
(Red)
P167
1
167
1
Electrical Charging System Voltage Low
– Critical Level
X X
599
(Red)
S025
14
640
14
OEM Commanded Dual Output Shutdown X X X
611
(None)
S151
11
1383
31
Engine Hot Shutdown X X X X X
611
(None)
S151
14
1383
31
Engine Hot Shutdown X X X 3 3 3
612*
(Red)
99
1
High Lubricating Oil Filter Restriction X 2 2 2
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
616*
(None)
1173
16
High Turbo Compressor Inlet Temp RB 3 3 3
617*
(None)
1172
0
High Turbo Compressor Inlet Temp LB X
621*
(Yellow)
1137
18
Low #1 LB Cylinder Power X 2 2 2
622*
(Yellow)
1138
18
Low #2 LB Cylinder Power X 2 2 2
623*
(Yellow)
1139
18
Low #3 LB Cylinder Power X 2 2 2
624*
(Yellow)
1140
18
Low #4 LB Cylinder Power X 2 2 2
625*
(Yellow)
1141
18
Low #5 LB Cylinder Power X 2 2 2
626*
(Yellow)
1142
18
Low #6 LB Cylinder Power X 2 2 2
627*
(Yellow)
1143
18
Low #7 LB Cylinder Power 2 2
628*
(Yellow)
1144
18
Low #8 LB Cylinder Power 2 2
1143 Low #1 RB Cylinder Power
631*
(Yellow)
(45)
1145
(60)
2 2 2
18
631*
(Yellow)
1329
1
Low #1 RB Cylinder Power X
1144 Low #2 RB Cylinder Power
632*
(Yellow)
(45)
1146
(60)
2 2 2
18
632*
(Yellow)
1329
1
Low #2 RB Cylinder Power X
1145 Low #3 RB Cylinder Power
633*
(Yellow)
(45)
1147
(60)
2 2 2
18
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
633*
(Yellow)
1329
1
Low #3 RB Cylinder Power X
1146 Low #4 RB Cylinder Power
634*
(Yellow)
(45)
1148
(60)
2 2 2
18
634*
(Yellow)
1329
1
Low #4 RB Cylinder Power X
1147 Low #5 RB Cylinder Power
635*
(Yellow)
(45)
1149
(60)
2 2 2
18
635*
(Yellow)
1329
1
Low #5 RB Cylinder Power X
1148 Low #6 RB Cylinder Power
636*
(Yellow)
(45)
1150
(60)
2 2 2
18
636*
(Yellow)
1329
1
Low #6 RB Cylinder Power X
637*
(Yellow)
1151
18
Low #7 RB Cylinder Power 2 2
638*
(Yellow)
1152
18
Low #8 RB Cylinder Power 2 2
641*
(Red)
1137
0
High #1 LB Cylinder Exhaust Temperature X 2 2 2
642*
(Red)
1138
0
High #2 LB Cylinder Exhaust Temperature X 2 2 2
643*
(Red)
1139
0
High #3 LB Cylinder Exhaust Temperature X 2 2 2
644*
(Red)
1140
0
High #4 LB Cylinder Exhaust Temperature X 2 2 2
645*
(Red)
1141
0
High #5 LB Cylinder Exhaust Temperature X 2 2 2
646*
(Red)
1142
0
High #6 LB Cylinder Exhaust Temperature X 2 2 2
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
647*
(Red)
1143
0
High #7 LB Cylinder Exhaust Temperature 2 2
648*
(Red)
1144
0
High #8 LB Cylinder Exhaust Temperature 2 2
649
(None)
S115
0
1378
0
Change Lubricating Oil and Filter X X 3 3 3
651*
(Red)
1143
(30,45)
1145
(60)
High #1 RB Cylinder Exhaust Temperature X 2 2 2
0
652*
(Red)
1144
(30,45)
1146
(60)
High #2 RB Cylinder Exhaust Temperature X 2 2 2
0
653*
(Red)
1145
(30,45)
1147
(60)
High #3 RB Cylinder Exhaust Temperature X 2 2 2
0
654*
(Red)
1146
(30,45)
1148
(60)
High #4 RB Cylinder Exhaust Temperature X 2 2 2
0
655*
(Red)
1147
(30,45)
1149
(60)
High #5 RB Cylinder Exhaust Temperature X 2 2 2
0
656*
(Red)
1148
(30,45)
1149
(60)
High #6 RB Cylinder Exhaust Temperature X 2 2 2
0
657*
(Red)
1150
0
High #7 RB Cylinder Exhaust Temperature 2 2
658*
(Red)
1151
0
High #8 RB Cylinder Exhaust Temperature 2 2
659*
(None)
Change fuel filter X 4 4 4
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
661*
(Yellow)
1137
16
High #1 LB Cylinder Power 2 2 2
661*
(Yellow)
1323
0
High #1 LB Cylinder Power X
662*
(Yellow)
1138
16
High #2 LB Cylinder Power 2 2 2
662*
(Yellow)
1324
0
High #2 LB Cylinder Power X
663*
(Yellow)
1139
16
High #3 LB Cylinder Power 2 2 2
663*
(Yellow)
1325
0
High #3 LB Cylinder Power X
664*
(Yellow)
1140
16
High #4 LB Cylinder Power 2 2 2
664*
(Yellow)
1326
0
High #4 LB Cylinder Power X
665*
(Yellow)
1141
16
High #5 LB Cylinder Power 2 2 2
665*
(Yellow)
1327
0
High #5 LB Cylinder Power X
666*
(Yellow)
1142
16
High #6 LB Cylinder Power 2 2 2
666*
(Yellow)
1328
0
High #6 LB Cylinder Power X
667*
(Yellow)
1143
16
High #7 LB Cylinder Power 2 2
668*
(Yellow)
1144
16
High #8 LB Cylinder Power 2 2
669*
(None)
Change coolant filter X 4 4 4
671*
(None)
1137
4
Cyl #1 LB Exhaust Temp Sens Failed Low X 4 4 4
672*
(None)
1138
4
Cyl #2 LB Exhaust Temp Sens Failed Low X 4 4 4
673*
(None)
1139
4
Cyl #3 LB Exhaust Temp Sens Failed Low X 4 4 4
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
674*
(None)
1140
4
Cyl #4 LB Exhaust Temp Sens Failed Low X 4 4 4
675*
(None)
1141
4
Cyl #5 LB Exhaust Temp Sens Failed Low X 4 4 4
676*
(None)
1142
4
Cyl #6 LB Exhaust Temp Sens Failed Low X 4 4 4
677*
(None)
1143
4
Cyl #7 LB Exhaust Temp Sens Failed Low 4 4
678*
(None)
1144
4
Cyl #8 LB Exhaust Temp Sens Failed Low 4 4
679*
(None)
Change Coolant X X 4 4
691*
(None)
1172
3
LBF Turbo Comp Inlet Temp Sens Failed High X
692*
(None)
1172
4
LBR Turbo Comp Inlet Temp Sens Failed Low X
694*
(None)
1173
3
RBF Turbo Comp Inlet Temp Sens Failed High 3 3 3
695*
(None)
1174
4
RBR Turbo Comp Inlet Temp Sens Failed Low 3 3 3
1143 High #1 RB Cylinder Power
711*
(Yellow)
(45)
1145
(60
2 2 2
16
711*
(Yellow)
1329
0
High #1 RB Cylinder Power X
1144 High #2 RB Cylinder Power
712*
(Yellow)
(45)
1146
(60)
2 2 2
16
712*
(Yellow)
1330
0
High #2 RB Cylinder Power X
1145 High #3 RB Cylinder Power
713*
(Yellow)
(45)
1147
(60)
2 2 2
16
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
713*
(Yellow)
1331
0
High #3 RB Cylinder Power X
1146 High #4 RB Cylinder Power
714*
(Yellow)
(45)
1148
(60)
2 2 2
16
714*
(Yellow)
1332
0
High #4 RB Cylinder Power X
1147 High #5 RB Cylinder Power
715*
(Yellow)
(45)
1148
(60)
2 2 2
16
715*
(Yellow)
1333
0
High #5 RB Cylinder Power X
1148 High #6 RB Cylinder Power
716*
(Yellow)
(45)
1149
(60)
2 2 2
16
716*
(Yellow)
1334
0
High #6 RB Cylinder Power X
717*
(Yellow)
1150
0
High #7 RB Cylinder Power 2 2
718*
(Yellow)
1151
0
High #8 RB Cylinder Power 2 2
719
(Yellow)
P022
3
1264
3
Crankcase Blowby Pressure Sensor Circuit – shorted high X X X 2 2 2
721*
(None)
1143
(30,45)
1145
(60)
Cyl #1 RB Exhaust Temp Sens Failed Low X 4 4 4
4
722*
(None)
1144
(30,45)
1146
(60)
Cyl #2 RB Exhaust Temp Sens Failed Low X 4 4 4
4
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
723*
(None)
1145
(30,45)
1147
(60)
Cyl #3 RB Exhaust Temp Sens Failed Low X 4 4 4
4
724*
(None)
1146
(30,45)
1148
(60)
Cyl #4 RB Exhaust Temp Sens Failed Low X 4 4 4
4
725*
(None)
1147
(30,45)
1149
(60)
Cyl #5 RB Exhaust Temp Sens Failed Low X 4 4 4
4
726*
(None)
1148
(30,45)
1150
(60)
Cyl #6 RB Exhaust Temp Sens Failed Low X 4 4 4
4
727*
(None)
1151
4
Cyl #7 RB Exhaust Temp Sens Failed Low 4 4
728*
(None)
1152
4
Cyl #8 RB Exhaust Temp Sens Failed Low 4 4
729
(Yellow)
P022
4
1264
4
Crankcase Blowby Pressure Sensor Circuit – shorted low X X X 2 2 2
747*
(None)
Trend Data Memory Nearly Full X 4 4 4
748*
(None)
Trend Data Memory Full X 3 3 3
749*
(None)
Fault Log Snapshot Data Nearly Full X 4 4 4
753
(None)
S064
2
723
2
Engine Speed/Position #2 – Cam sync error X X X 3 3 3
754*
(None)
Fault Log Snapshot Data Full X 3 3 3
755
(Yellow)
P157
7
157
7
Injector Metering Rail #1 Pressure Malfunction X
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
756*
(None)
Change Lubricating Oil Filters X 4 4 4
757*
(None)
Catastrophic Power Loss – ECM Data Lost X 4 4 4
758
(Yellow)
P129
7
1349
7
Injector Metering Rail #2 Pressure Malfunction X
768
(Yellow)
S009
11
923
11
Output Device Driver (VGT or Transmission shift PWM signal) X X X
777
(Yellow)
P173
0
1180
0
Turbocharger #1 Turbine Inlet Temperature High – warning level X 2 2 2
779
(Yellow)
S051
11
703
11
Auxiliary Equipment Sensor Input # 3 (OEM Switch) X X X
783 Rapid Rise in Intake Manifold Temperature LBF 1 1
951
(None)
P166
2
166
2
Cylinder Power Imbalance between cylinders X X
1000*
(None)
Vehicle Controller initiated fault log X
2144* 0 1153
0
High #9 LB Cylinder Exhaust Temperature 2
2145* 0 1154
0
High #9 RB Cylinder Exhaust Temperature 2
2146* 4 1153
4
Exhaust Gas Temperature Sensor Circuit Failed Low Cyl # 9 RB 4
2147* 4 1154
4
Exhaust Gas Temperature Sensor Circuit Failed Low Cyl # 9 LB 4
2148* 0 1340
16
High Power – Cylinder # 9 Left Bank 2
2149* 1341
16
High Power – Cylinder # 9 Right Bank 2
2151* 1340
18
Low Power – Cylinder # 9 Left Bank 2
2152* 1341
18
Low Power – Cylinder # 9 Right Bank 2
2154*
(None)
611
3
Post-Filter Oil Pressure Sensor Circuit- Shorted high X 3 3 3
FAULT CODE
(LAMP)
SID(S)
PID(P)
FMI
SPN FMI DESCRIPTION QSB QSC QSL9 QSM11 QSX15 QSK19 QSK23 QST30 QSK45 QSK60 QSK78
HHP Level Number (**)
2155*
(None)
611
4
Post-Filter Oil Pressure Sensor Circuit- Shorted Low X 3 3 3
2157* 1131
10
Rapid Rise in Intake Manifold Temperature LBR 1 1
2158* 1132
10
Rapid Rise in Intake Manifold Temperature RBF 1 1
2159* 1133
10
Rapid Rise in Intake Manifold Temperature RBR 1 1
2194*
(Yellow)
P223
11
1387
11
Auxiliary Equipment Sensor Input # 2 (OEM Pressure Sensor) Engine Protection – Warning X X X
2195*
(Red)
S051
14
703
14
Auxiliary Equipment Sensor Input # 3 (OEM Switch) Engine Protection – Critical X X X
2241* Left Bank Middle High Intake Manifold Temperature – EP 2
2242* Left Bank Middle Intake Manifold Temp Sensor Circuit Failed High 2
2243* Left Bank Middle Intake Manifold Temp Sensor Circuit Failed Low 2
2244* Rapid Rise in Intake Manifold Temperature LBM 2
2245* Right Bank Middle High Intake Manifold Temperature – EP 2
2246* Right Bank Middle Intake Manifold Temp Sensor Circuit Failed High 2
2247* Right Bank Middle Intake Manifold Temp Sensor Circuit Failed Low 2
2248* Rapid Rise in Intake Manifold Temperature RBM 2
2251* Front Intercooler Boost Pressure High 2
2252* Front Intercooler Boost Pressure Low 2
2253* Front Intercooler Boost Pressure Out of Range High 2
2254* Front Intercooler Boost Pressure Out of Range Low 2
2255* Rear Intercooler Boost Pressure High 2
2256* Rear Intercooler Boost Pressure Low 2
2257* Rear Intercooler Boost Pressure Out of Range High 2
2258* Rear Intercooler Boost Pressure Out of Range Low 2
The diagnosis tool Fault Codes List for Cummins Engines for trucks provides different possibilities such as information on the use and location of the connectors, detection and description of errors, activation of the fan, compression test and other components, system data information and more.