Service technicians have no problem recognising breakdowns and carrying out machine diagnostics, DETROIT DIESEL Engine Fault Codes DTC, plus they are familiar with equipment from a variety of manufacturers.
Detroit Diesel Corporation (DDC) is an American diesel engine manufacturer headquartered in Detroit, Michigan, United States. It is a subsidiary of Daimler Truck North America, which is itself a wholly owned subsidiary of the mulitinational Daimler Truck AG. The company manufactures heavy-duty engines and chassis components for the on-highway and vocational commercial truck markets. Detroit Diesel has built more than 5 million engines since 1938, more than 1 million of which are still in operation worldwide. Detroit Diesel’s product line includes engines, axles, transmissions, and a Virtual Technician service. Detroit engines, transmissions, and axles are used in several models of truck manufactured by Daimler Truck North America.
DETROIT DIESEL Engine Fault Codes list
Code Description DDEC V Circuit
11 P 187 4 Chain PTO. Short circuit in the power
11 P 187 7 control system PTO wrong answers
12 P 187 3 Chain PTO. Short circuit in the ground
13 P 111 4-level circuit antifreeze. Short circuit in the ground
13 P 111 6 second-level circuit antifreeze. Short circuit in the ground
14 P 52 3 circuit coolant temperature intercooler. Short circuit in the power
14 P 110 3 circuit temperature antifreeze. Short circuit in the power
14 P 175 3 Chain oil temperature. Short circuit in the power
15 P 52 4 circuit coolant temperature intercooler. Short circuit in the ground
15 P 110 4 circuit temperature antifreeze. Short circuit in the ground
15 P 175 4 Chain oil temperature. Short circuit in the ground
16 P 111 3-level circuit antifreeze. Short circuit in the power
16 P 111 5 second circuit level antifreeze. Short circuit in the power
17 P 51 3 Throttle position circuit failed high
17 P 72 3 Bypass position circuit failed high
17 P 3 354 Relative humidity sensor circuit failed high
18 P 51 4 Throttle position circuit failed low
18 P 72 4 Bypass position circuit failed low
18 P 354 4 Relative humidity sensor circuit failed low
21 P 91 3 TPS circuit failed high
22 P 91 4 TPS circuit failed low
23 s 65 3 Oxygen content circuit failed high
23 P 174 3 Chain fuel temperature. Short circuit in the power
24 s 65 4 Oxygen content circuit failed low
24 p 174 4 Chain fuel temperature. Short circuit in the ground
25 no codes
26 s 25 November Aux. shutdown # 1 active
26 S 61 11 Aux. shutdown # 2 active (Incorrect SID. subject to change)
27 p 105 3 circuit temperature in the reservoir. Short circuit in the power
27 p 171 3 Ambient air temp circuit failed high
27 p 172 3 Air temp, circuit failed high
28 p 105 to 4 Chain manifold temperature. Short circuit in the ground
28 p 171 4 Ambient air temp circuit failed low
28 p 172 4 Air temp, circuit failed low
29 p 404 4 TCO temperature circuit failed low
29 p 351 4 TCI Temperature circuit failed low
31 S 51 3 Aux. Output # 3 open circuit (high side) S3
31 S 51 4 Aux. Output # 3 short to ground (high side) S3
31 S 51 7 Aux. Output # 3 mech. system fail S3
31 s 52 3 Aux. Output # 4 open circuit (high side) T3
31 s 52 4 Aux. Output # 4 short to ground (high side) T3
31 s 52 7 Aux. Output # 4 mech. system fail T3
32 S 238 3 SEL short to battery B1
32 S 238 4 SEL open circuit B1
32 s 239 3 CEL short to battery B2
32 s 239 4 CEL open circuit B2
33 p 102 3 Boost pressure circuit failed high
34 p 102 4 Boost pressure circuit failed low
35 p 19 March Ext range oil pressure circuit failed high
35 p 100 3 Chain oil pressure. Short circuit in the power
36 P 19 April Ext range oil pressure circuit failed low
36 P 100 4 Chain oil pressure. Short circuit in the ground
37 P 18 March Ext range fuel pressure circuit failed high
37 P 94 3 Chain fuel pressure. Short circuit in the power
37 P 95 3 Fuel Filter Restriction circuit failed high
38 P 18 April Ext range fuel pressure circuit failed low
38 P 94 4 Chain fuel pressure. Short circuit in the ground
38 P 95 4 Fuel Filter Restriction circuit failed low
39 S 146 2 Mechanical error EGR valve
39 S 146 12 Mechanical error EGR valve
39 S 146 return valve 7 does not meet the exhaust
39 S 147 2 turbocharger control mechanism does not respond
39 s 147 12 turbocharger control mechanism does not respond
39 s 14 147 current returns exhaust gases enough
39 S 147 11 turbocharger control mechanism does not respond
39 S 147 7 turbocharger control mechanism does not respond
41 S 21 0 Too many SRS (missing TRS)
42 S 21 January Too few SRS (missing SRS)
43 p 111 1 Low coolant level
44 p 52 0 ntercooler coolant temp, high
44 p 105 0 temperature in the reservoir above the norm
44 p 110 0 antifreeze temperature above normal
44 p 172 0 Air inlet temp, high
44 p 175 0 Oil temperature above normal
45 p 19 January Ext range oil pressure low
45 p 100 1 Oil pressure below normal
46 p 168 1 Low voltage batteries
46 S 214 1 RTC Backup Battery Voltage Low
46 S 232 1 Sensor Supply Voltage Low A3 & W1
P 0 47 18 Ext range fuel pressure high
P 47 94 0 The fuel pressure above normal
47 p 0 102 Turbo boost press high
47 p 106 0 Air inlet pressure high or TCBV diff press high
47 p 164 0 Injection control pressure high
48 p 18 January Ext range fuel pressure low
48 p 94 1 fuel pressure below normal
48 p 106 1 Air inlet pressure low
48 p 164 1 Injection control pressure low
48 p 351 1 TCI Temperature below range
48 p 404 1 TCO Temperature below range
48 p 411 1 EGR Delta pressure low
48 p 412 1 EGR Temperature low
49 p 351 0 TCI Temperature above range
49 p 404 0 TCO Temperature above range
51 p 351 3 TCI Temperature circuit failed high
51 p 404 3 TCO Temperature circuit failed high
52 s 12 254 A / D Conversion fail
S 253 53 12 EE PROM write error
53 S 253 13 Out of Calibration
53 S 253 2 Nonvolatile checksum incorrect
P 54 84 12 Vehicle speed sensor fault
55 S 216 14 Missing other ECU information (should not occur without another fault which indicates the data missing from other ECU)
55 S 231 12 939 A data link fault
S 248 55 8 Proprietary link fault (master)
55 S 248 9 Proprietary link fault (slave)
56 S 250 12 587 A data link fault
57 S 249 12 922 A data link fault
58 p 92 0 Torque overload
61 s 1 0 Injector # 1 responds too slowly
61 s 2 0 Injector # 2 responds too slowly
61 s 3 0 Injector # 3 responds too slowly
61 s 4 0 Injector # 4 answers too slowly
61 S 5 0 Injector # 5 answers too slowly
61 S 6 0 Injector # 6 answers too slowly
62 S 26 March Aux. Output # 1 short to battery F3
62 S 26 April Aux. Output # 1 open circuit F3
62 S 26 July Aux. Output # 1 mech. system fail F3
62 S 40 3 Aux. Output # 2 short to battery A2
62 S 40 4 Aux. Output # 2 open circuit A2
62 S 40 7 Aux. Output # 2 mech. system fail A2
62 S 53 3 Aux. Output # 5 short to battery W3
62 S 53 4 Aux. Output # 5 open circuit W3
62 S 53 7 Aux. Output # 5 mech. system fail W3
62 S 54 3 Aux. Output # 6 short to battery X3
62 S 54 4 Aux. Output # 6 open circuit X3
62 S 54 7 Aux. Output # 6 mech. system fail X3
62 S 55 3 Aux. Output # 7 short to battery Y3
62 S 55 4 Aux. Output # 7 open circuit Y3
62 S 55 7 Aux. Output # 7 mech. system fail Y3
62 S 56 3 Aux. Output # 8 short to battery A1
62 S 56 4 Aux. Output # 8 open circuit A1
62 S 56 7 Aux. Output # 8 mech. system fail A1
63 S 57 0 PWM # 1 above normal range J3
63 S 57 1 PWM # 1 below normal range J3
63 S 57 3 PWM # 1 short to battery J3
63 S 57 4 PWM # 1 open circuit J3
63 S 58 0 PWM # 2 above normal range Y1
63 S 58 1 PWM # 2 below normal range Y1
63 S 58 3 PWM # 2 short to battery Y1
63 S 58 4 PWM # 2 open circuit Y1
63 S 59 0 PWM # 3 above normal range W2
63 S 59 1 PWM # 3 below normal range W2
63 S 59 3 PWM # 3 short to battery W2
63 S 59 4 PWM # 3 open circuit W2
63 S 60 0 PWM # 4 above normal range X2
63 S 60 1 PWM # 4 below normal range X2
63 S 60 3 PWM # 4 short to battery X2
63 S 60 4 PWM # 4 open circuit X2
64 p 0 103 Turbo Overspeed
64 8 p 103 Turbo speed circuit failed
65 p 51 0 Throttle position above range
65 p 51 1 Throttle position below range
65 p 51 2 Throttle position erratic
65 p 51 7 Throttle not responding
65 p 107 3 Air filter restriction circuit failed high
65 p 107 4 Air filter restriction circuit failed low
66 S 76 0 Knock control above range
66 S 76 3 Knock control circuit shorted high
66 S 76 4 Knock control circuit shorted low
66 S 76 7 No response to knock control
66 p 99 3 Oil filter restriction circuit failed high
66 p 99 4 Oil filter restriction circuit failed low
67 p 20 March Ext range coolant pressure circuit failed high
67 p 20 April Ext range coolant pressure circuit failed low
67 p 106 3 Air inlet pressure circuit failed high
67 p 106 4 Air inlet pressurecircuit failed low
67 p 109 3 Coolant pressure circuit failed high
67 p 109 4 Coolant pressure circuit failed low
68 S 230 5 IVS circuit fault, open circuit
68 S 230 6 IVS circuit fault, grounded circuit
71 S 1 January Injector # 1 responds too quickly
71 S 1 February Injector # 2 responds too quickly
71 S March 1 Injector # 3 answers too quickly
71 S 1 April Injector # 4 answers too quickly
71 S May 1 Injector # 5 answers too quickly
71 S 1 June Injector # 6 answers too quickly
72 S 65 0 Oxygen content too high
72 S 65 1 Oxygen content too low
72 p 84 0 Vehicle overspeed
P 72 84 11 Vehicle overspeed (absolute)
73 S 77 0 Gas metering valve data above range
73 S 77 1 Gas metering valve data below range
73 s 77 3 Gas metering valve circuit shorted high
73 s 77 4 Gas metering valve circuit shorted low
73 S 77 7 Gas metering valve not responding
73 p 107 0 Air filter restriction high
73 S 151 14 ESS fault – Stuck in gear detected
73 S 226 11 Transmission neutral switch fault not identifiable
73 S 227 2 ESS fault – aux. analog input # 1 data incorrect
73 S 227 3 ESS fault – aux. analog input # 1 voltage above normal
73 S 227 4 ESS fault – aux. anlg input # 1 voltage shorted low
74 p 70 4 Safety loop shorted to gnd
P 0 74 99 Oil filter restriction high
75 p 168 0 Battery voltage high
75 S 214 0 RTC Backup Battery Voltage High
75 S 232 0 Sensor Supply Voltage High A3 & W1
76 p 0 121 Engine Overspeed with Engine Brake
77 p 19 0 Extended range oil pressure above range
77 p 20 0 Extended range coolant pressure above range
77 p 72 0 Bypass blower door position above range
11 p 72 1 Bypass blower door position below range
11 p 73 1 Fire pump pressure below range
P 11 81 0 Exhaust backpressure above range
11 p 1 81 Exhaust backpressure below range
11 p 81 12 Exhaust backpressure at rampdown threshold
11 p 81 3 Exhaust backpressure failed high
11 p 81 4 Exhaust backpressure failed low
11 p 95 1 Fuel filter differential pressure below range
11 p 99 1 Oil filter differentail pressure below range
11 p 0 100 Engine oil pressure above range
11 p 102 1 Turbo boost pressure below range
11 p 105 1 Inlet manifold temperature below range
11 p 107 1 Air filter differential pressure below range
11 p 354 0 Relative humidity above range
11 p 354 1 Relative humidity below range
11 p 108 0 Barometric pressure above range
11 108 1 p Barometric pressure below range
11 p 109 0 Coolant pressure above range
11 p 110 1 Coolant temperature below range
11 p 111 0 Coolant level above range
171 171 0 p Ambient air temperature above range
171 p 171 1 Ambient air temperature below range
11 p 172 1 Air inlet temperature below range
11 p 174 0 Fuel temperature above range
P 11 174 1 Fuel temperature below range + E274
11 p 175 1 Engine oil temperature below range
11 p 177 0 Transmission oil temperature above range
11 p 177 1 Transmission oil temperature below range
11 p 177 3 Transmission oil temperature failed high
11 p 177 4 Transmission oil temperature failed low
11 p 222 14 Anti theft fault present
11 p 251 10 Clock module abnormal rate of change
11 p 251 13 Clock module failure
11 p 252 10 Clock module abnormal rate of change
11 p 252 13 Clock module failure
11 p 446 0 Cylinder head temperature above range
P 78 86 14 Cruise Control / Adaptive Cruise Control
81 p 98 3 Oil level circuit failed high
81 p 101 3 Crankcase press, circuit failed high
81 p 153 3 High res crankcase press. Circuit failed high
81 p 164 3 Injection cntl press circuit failed high
81 p 173 3 Exhaust gas temperature circuit failed high
81 S 277 9 EGR mass flow smart sensor not responding
81 S 277 12 EGR mass flow smart sensor failed
81 p 411 3 EGR Delta pressure circuit failed high
81 p 412 3 EGR Temperature circuit failed high
82 S 412 9 EGR temperature smart sensor not responding
82 S 412 12 EGR temperature smart sensor failed
82 p 98 4 Oil level circuit failed low
82 p 101 4 Crankcase press, circuit failed low
82 p 153 4 High res crankcase press. circuit failed low
82 p 164 4 Injection cntl press circuit failed low
82 p 173 4 Exhaust gas temperature circuit failed low
82 p 411 4 EGR Delta pressure circuit failed low
82 p 412 4 EGR Temperature circuit failed low
83 p 73 0 Aux. pump pressure above range
83 p 98 0 Oil level high
83 p 101 0 Crankcase pressure high
83 p 0 153 High res crankcase Pressure high
83 p 0 173 Exhaust gas temperature high
83 p 411 0 EGR Delta pressure high
83 p 412 0 EGR Temperature high
84 p 98 1 Oil level low
84 p 101 1 Crankcase pressure low
84 p 153 1 High Res Crankcase Pressure low
P 85 190 0 Engine overspeed
85 p 190 14 Engine Overspeed Signal
86 p 73 3 Aux. pump pressure circuit failed high
86 p 108 3 Baro. pressure circuit failed high
87 p 73 4 Aux. pump pressure circuit failed low
87 p 108 4 Baro. pressure circuit failed low
88 p 20 January Ext range coolant pressure low
88 p 109 1 Coolant pressure low
89 p 95 0 Fuel Filter Restriction high
89 p 111 12 Maintenance monitor Coolant level fault
S 240 2 FRAM checksum incorrect
S 240 13 FRAM out of calibration
DDEC IV EGR DESCRIPTIONS
To read codes, use the Detroit Diesel Diagnostic Link (DDDL). The DDDL will display active and inactive fault codes which are listed in Table.
Flash Codes, SAE Codes, Descriptions
DDC Code # (Flashed) |
PID | SID | FMI | Description |
11 | 187 | – | 4 | Variable Speed Governor Sensor Voltage Low |
12 | 187 | – | 3 | Variable Speed Governor Sensor Voltage High |
13 | 111 | – | 4 | Coolant Level Sensor Input Voltage Low |
14 | 110 | – | 3 | Coolant Temperature Sensor Input Voltage High |
14 | 175 | – | 3 | Oil Temperature Sensor Input Voltage High |
15 | 110 | – | 4 | Coolant Temperature Sensor Input Voltage Low |
15 | 175 | – | 4 | Oil Temperature Sensor Input Voltage Low |
16 | 111 | – | 3 | Coolant Level Sensor Input Voltage High |
17 | 354 | – | 3 | Relative Humidity Sensor Circuit Failed High |
18 | 354 | – | 4 | Relative Humidity Sensor Circuit Failed Low |
21 | 91 | – | 3 | Throttle Position Sensor Input Voltage High |
22 | 91 | – | 4 | Throttle Position Sensor Input Voltage Low |
23 | 174 | – | 3 | Fuel Temperature Sensor Input Voltage High |
24 | 174 | – | 4 | Fuel Temperature Sensor Input Voltage Low |
25 | – | – | – | Reserved for ‘‘No Codes” |
26 | – | 25 | 11 | Aux. Shutdown #1 Active |
26 | – | 61 | 11 | Aux. Shutdown #2 Active |
27 | 105 | – | 3 | Intake Manifold Temperature Sensor Input Voltage High |
27 | 171 | – | 3 | Ambient Air Temperature Sensor Input Voltage High |
28 | 105 | – | 4 | Intake Manifold Temperature Sensor Input Voltage Low |
28 | 171 | – | 4 | Ambient Air Temperature Sensor Input Voltage Low |
29 | 351 | – | 4 | TCI Temperature Circuit Failed Low |
29 | 404 | – | 4 | TCO Out Sensor Input Voltage Low |
31 | – | 51 | 3 | Aux. Output #3 Open Circuit (High Side) – S3 |
31 | – | 51 | 4 | Aux. Output #3 Short To Ground (High Side) – S3 |
31 | – | 51 | 7 | Aux. Output #3 Mechanical System Fail – S3 |
31 | – | 52 | 3 | Aux. Output #4 Open Circuit (High Side) – T3 |
31 | – | 52 | 4 | Aux. Output #4 Short to Ground (High Side) – T3 |
31 | – | 52 | 7 | Aux. Output #4 Mechanical System Failure – T3 |
32 | – | 238 | 3 | SEL Short to Battery (+) |
32 | – | 238 | 4 | SEL Open Circuit |
32 | – | 239 | 3 | CEL Short to Battery (+) |
32 | – | 239 | 4 | CEL Open Circuit |
33 | 102 | – | 3 | Turbo Boost Pressure Sensor Input Voltage High |
34 | 102 | – | 4 | Turbo Boost Pressure Sensor Input Voltage Low |
35 | 100 | – | 3 | Oil Pressure Sensor Input Voltage Low |
36 | 100 | – | 4 | Oil Pressure Sensor Input Voltage Low |
37 | 94 | – | 3 | Fuel Pressure Sensor Input Voltage High |
38 | 94 | – | 4 | Fuel Pressure Sensor Input Voltage Low |
39 | – | 146 | 2 | EGR Leak – Boost Power |
39 | – | 146 | 12 | EGR Leak – Boost Jake |
39 | – | 146 | 7 | EGR Valve Not Responding |
39 | – | 147 | 2 | VNT Vanes Not Responding – Boost Power |
39 | – | 147 | 11 | VNT Vanes at Max – Jake |
39 | – | 147 | 12 | VNT Vanes Not Responding – Boost Jake |
39 | – | 147 | 14 | EGR Flow too Low |
39 | – | 147 | 7 | VNT Vanes Not Responding – EGR |
41 | – | 21 | 0 | Too Many SRS (missing TRS) |
42 | – | 21 | 1 | Too few SRS (missing SRS) |
43 | 111 | – | 1 | Coolant Level Low |
44 | 105 | – | 0 | Intake Manifold Temperature High |
44 | 110 | – | 0 | Coolant Temperature High |
44 | 172 | – | 0 | Air Inlet Temperature High |
44 | 175 | – | 0 | Oil Temperature High |
– | 105 | – | 14 | Inlet Manifold Temperature Derate |
– | 110 | – | 14 | Coolant Temperature Derate |
45 | 100 | – | 1 | Oil Pressure Low |
46 | 168 | – | 1 | ECM Battery Voltage Low |
46 | – | 214 | 1 | RTC Backup Battery Voltage Low |
46 | – | 232 | 1 | Sensor Supply Voltage Low |
47 | 102 | – | 0 | Turbo Boost Pressure High |
47 | 106 | – | 0 | Air Inlet Pressure High |
48 | 106 | – | 1 | Air Inlet Pressure Low |
48 | 411 | – | 1 | EGR OPD Low |
48 | 412 | – | 1 | EGR Temperature Low |
49 | 404 | – | 0 | Turbo Compressor Out Temperature High |
– | 404 | – | 14 | TCO Temperature Derate |
51 | 404 | – | 3 | Turbo Compressor Out Temperature Sensor Input Voltage High |
52 | – | 254 | 12 | A/D Conversion Fail |
53 | – | 253 | 2 | Nonvolatile Checksum Incorrect |
53 | – | 253 | 12 | EEPROM Write Error |
53 | – | 253 | 13 | Out of Calibration |
54 | 84 | – | 12 | Vehicle Speed Sensor Fault |
55 | – | 216 | 14 | Other ECM Fault |
55 | – | 231 | 12 | J1939 Data Link Fault |
56 | – | 250 | 12 | J1587 Data Link Fault |
57 | – | 249 | 12 | J1922 Data Link Fault |
58 | 92 | – | 0 | Torque Overload |
61 | – | xxx | 0 | Injector xxx Response Time Long |
62 | – | 26 | 3 | Aux. Output #1 Short to Battery (+) – F3 |
62 | – | 26 | 4 | Aux. Output #1 Open Circuit – F3 |
62 | – | 26 | 7 | Aux. Output #1 Mechanical System Not Responding Properly – F3 |
62 | – | 40 | 3 | Aux. Output #2 Short to Battery (+) – A2 |
62 | – | 40 | 4 | Aux. Output #2 Open Circuit – A2 |
62 | – | 40 | 7 | Aux. Output #2 Mechanical System Not Responding Properly – A2 |
62 | – | 53 | 3 | Aux. Output #5 Short to Battery (+) – W3 |
62 | – | 53 | 4 | Aux. Output #5 Open Circuit – W3 |
62 | – | 53 | 7 | Aux. Output #5 Mechanical System Not Responding Properly – W3 |
62 | – | 54 | 3 | Aux. Output #6 Short to Battery (+) – X3 |
62 | – | 54 | 4 | Aux. Output #6 Open Circuit – X3 |
62 | – | 54 | 7 | Aux. Output #6 Mechanical System Not Responding Properly – X3 |
62 | – | 55 | 3 | Aux. Output #7 Short to Battery (+) – Y3 |
62 | – | 55 | 4 | Aux. Output #7 Open Circuit – Y3 |
62 | – | 55 | 7 | Aux. Output #7 Mechanical System Not Responding Properly – Y3 |
62 | – | 56 | 3 | Aux. Output #8 Short to Battery (+) – A1 |
62 | – | 56 | 4 | Aux. Output #8 Open Circuit – A1 |
62 | – | 56 | 7 | Aux. Output #8 Mechanical System Not Responding Properly – A1 |
63 | – | 57 | 0 | PWM #1 Above Normal Range |
63 | – | 57 | 1 | PWM #1 Below Normal Range |
63 | – | 57 | 3 | PWM #1 Short to Battery (+) |
63 | – | 57 | 4 | PWM #1 Open Circuit |
63 | – | 58 | 0 | PWM #2 Above Normal Range |
63 | – | 58 | 1 | PWM #2 Below Normal Range |
63 | – | 58 | 3 | PWM #2 Short to Battery (+) |
63 | – | 58 | 4 | PWM #2 Open Circuit |
63 | – | 59 | 0 | PWM #3 Above Normal Range |
63 | – | 59 | 1 | PWM #3 Below Normal Range |
63 | – | 59 | 3 | PWM #3 Short to Battery (+) |
63 | – | 59 | 4 | PWM #3 Open Circuit |
63 | – | 60 | 0 | PWM #4 Above Normal Range |
63 | – | 60 | 1 | PWM #4 Below Normal Range |
63 | – | 60 | 3 | PWM #4 Short to Battery (+) |
63 | – | 60 | 4 | PWM #4 Open Circuit |
64 | 103 | – | 0 | Turbo Overspeed |
64 | 103 | – | 8 | Turbo Speed Sensor Input Failure – Abnormal Period |
67 | 106 | – | 3 | Air Inlet Pressure Sensor Input Voltage High |
67 | 106 | – | 4 | Air Inlet Pressure Sensor Input Voltage Low |
68 | – | 230 | 5 | TPS Idle Validation Circuit Fault (open circuit) |
68 | – | 230 | 6 | TPS Idle Validation Circuit Fault (short to ground) |
71 | – | xxx | 1 | Injector xxx Response Time Short |
72 | 84 | – | 0 | Vehicle Overspeed |
72 | 84 | – | 11 | Vehicle Overspeed (Absolute) |
73 | – | 151 | 14 | ESS Transmission Stuck in Gear |
73 | – | 226 | 11 | Transmission Neutral Switch Failure (ESS Transmission) |
73 | – | 227 | 2 | Aux Analog Input Data Erratic, Intermittent, or Incorrect (ESS Transmission) |
73 | – | 227 | 3 | Aux Analog Input #1 Voltage High (ESS Transmission) |
73 | – | 227 | 4 | Aux Analog Input #1 Voltage Low (ESS Transmission) |
74 | 70 | – | 4 | Optimized Idle Safety Loop Short to Ground |
74 | 99 | – | 0 | Oil Filter Restriction High |
75 | 168 | – | 0 | ECM Battery Voltage High |
75 | – | 214 | 0 | RTC Backup Battery Voltage High |
75 | – | 232 | 0 | Sensor Supply Voltage High |
76 | 121 | – | 0 | Engine Overspeed With Engine Brake |
77 | 100 | – | 0 | Engine Oil Pressure High |
77 | 102 | – | 1 | Turbo Boost Pressure Low |
77 | 108 | – | 0 | Barometric Pressure High |
77 | 108 | – | 1 | Barometric Pressure Low |
77 | 174 | – | 0 | Fuel Temperature High |
77 | 354 | – | 0 | Relative Humidity Above Range |
77 | 354 | – | 1 | Relative Humidity Below Range |
78 | 86 | – | 14 | Cruise Control/Adaptive Cruise Control Fault |
81 | 411 | — | 3 | EGR Delta pressure circuit failed high |
81 | 412 | — | 3 | EGR temperature circuit failed high |
81 | 412 | — | 9 | EGR temperature smart sensor not responding |
82 | – | 412 | 9 | EGR Temperature Smart Sensor not Responding |
82 | – | 412 | 12 | EGR Temperature Smart Sensor Failed |
82 | 411 | — | 4 | EGR Delta pressure circuit failed low |
82 | 412 | — | 4 | EGR Temperture circuit failed low |
83 | 73 | – | 0 | Pump Pressure High |
83 | 411 | – | 0 | EGR Delta Pressure High |
83 | 412 | – | 0 | EGR Temperature High |
85 | 190 | – | 0 | Engine Overspeed |
85 | 190 | – | 14 | Engine Overspeed Signal |
86 | 73 | – | 3 | Pump Pressure Sensor Input Voltage High |
86 | 108 | – | 3 | Barometric Pressure Sensor Input Voltage High |
87 | 73 | – | 4 | Pump Pressure Sensor Input Voltage Low |
87 | 108 | – | 4 | Barometric Pressure Sensor Input Voltage Low |
LOGIC CODES (MECHANICAL FAILURES)
Logic codes indicate the detection of mechanical failures by the DDEC system. The response will be a Flash Code.
Diagnosing Flash Code 39
Failure Mode: SID 146, FMI 7 — EGR Valve Not Responding
Indicates: EGR flow requested by DDEC and no EGR flow detected.
SID 146, FMI 7 will be set by the ECM if, the signal from the Delta P sensor and EGR temperature sensor indicate EGR flow is below a minimum allowable flow when the ECM is in “EGR Mode” for a period greater than 50 seconds.
Response: The CEL will be illuminated and the system will be forced into “Boost Mode” (EGR is Disabled) for the remainder of the ignition cycle.
Possible Causes:
- EGR valve mechanical failure (closed);
- Plugged EGR cooler;
- Defective Delta P sensor;
- Plugged Delta P ports;
- VNT vanes stuck in an open position;
- Exhaust leaking at the S Pipe;
- Exhaust leaking at the EGR valve;
- Leaking air lines from the VPOD to the actuators (insufficient air supply);
- Leaking or low vehicle air supply to the VPODs;
- VPOD mechanical failure.