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Home >> GMC >> 1996 >> C3500 HD 7.4 J, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Gasoline >> DTC Definitions

DTC Definitions

DTC DEFINITIONS

Code No. Circuit Affected
P0101  MAF System Performance
P0102  MAF Sensor Circuit Low Frequency
P0103  MAF Sensor Circuit High Frequency
P0106  MAP Performance
P0107  MAP Voltage Low
P0108  MAP Voltage High
P0112  IAT Sensor Signal Voltage Low
P0113  IAT Sensor Signal Voltage High
P0117  ECT Sensor Signal Voltage Low
P0118  ECT Sensor Signal Voltage High
P0121  TP Sensor Range/Performance
P0122  TP Sensor Signal Voltage Low
P0123  TP Sensor Signal Voltage High
P0125  ECT Excessive Time To Closed Loop
P0131  O2S/HO2S Signal Voltage Low
P0132  O2S/HO2S Signal Voltage High
P0133  O2S/HO2S Voltage Slow Response
P0134  O2S/HO2S Insufficient/No Activity Detected HO2S Circuit Insufficient Activity Bank 1, Sensor 1
P0135  O2S/HO2S Heater Circuit
P0137  Rear/No. 2 HO2S Voltage Low HO2S Circuit Low Voltage Bank 1, Sensor 2 (4.3L)
P0138  HO2S Circuit Insufficient Activity Bank 1, Sensor 2
P0140  HO2S Circuit Insufficient Activity Bank 1, Sensor 2
P0141  HO2S Heater Circuit Bank 1, Sensor 2
P0143  (4.3L & 5.0L) HO2S Circuit Low Voltage Bank 1, Sensor 3
P0144  (4.3L & 5.0L) HO2S Circuit High Voltage Bank 1, Sensor 3
P0146  (4.3L & 5.0L) HO2S Circuit Insufficient Activity Bank 1
P0147  (4.3L & 5.0L) HO2S Heater Circuit Bank 1, Sensor 3
P0151  HO2S Circuit Low Voltage Bank 2, Sensor 1
P0152  HO2S Circuit High Voltage Bank 2, Sensor 1
P0153  HO2S Slow Response Bank 2, Sensor 1
P0154  HO2S Circuit Insufficient Activity Bank 2, Sensor 1 (Except 7.4L)
P0155  HO2S Heater Circuit Bank 2, Sensor 1
P0157  (5.7L & 7.4L) HO2S Circuit Low Voltage Bank 2, Sensor 2
P0158  (5.7L & 7.4L) HO2S Circuit High Voltage Bank 2, Sensor 2
P0160  (5.7L & 7.4L) HO2S Insufficient Activity Bank 2, Sensor 2
P0161  (5.7L & 7.4L) HO2S Heater Circuit Bank 2, Sensor 2
P0171  Fuel Trim System Lean Bank 1
P0172  Fuel Trim System Rich Bank 1
P0174  Fuel Trim System Lean Bank 2
P0175  Fuel Trim System Rich Bank 2
P0300  Engine Misfire Detected
P0301  Cyl. No. 1 Misfire Detected
P0302  Cyl. No. 2 Misfire Detected
P0303  Cyl. No. 3 Misfire Detected
P0304  Cyl. No. 4 Misfire Detected
P0305  Cyl. No. 5 Misfire Detected
P0306  Cyl. No. 6 Misfire Detected
P0307  (5.0L, 5.7L & 7.4L)Cyl. No. 7 Misfire Detected
P0308  (5.0L, 5.7L & 7.4L) Cyl. No. 8 Misfire Detected
P0325  Knock Sensor Circuit
P0327  Knock Sensor Circuit Low Voltage
P0336  CKP Sensor Circuit Performance
P0337  CKP Sensor Low Frequency
P0338  CKP Sensor High Frequency
P0339  CKP Sensor Circuit Intermittent
P0340  CMP Sensor Circuit
P0341  CMP Sensor Circuit Performance
P0401  EGR System
P0410  AIR System Fault
P0420  TWC System Low Efficiency
P0430  TWC low efficiency bank 2
P0441  EVAP System No Flow During Purge
P0500  Vehicle Speed Sensor Circuit
P0506  Idle RPM Too Low
P0507  Idle RPM Too High
P1106  MAP Sensor Voltage Intermittently High
P1107  MAP Sensor Voltage Intermittently Low
P1111  IAT Sensor Circuit Intermittent High Voltage
P1112  IAT Sensor Circuit Intermittent Low Voltage
P1114  ECT Sensor Circuit Intermittent Low Voltage
P1115  ECT Sensor Circuit Intermittent High Voltage
P1121  TP Sensor Voltage Intermittently High
P1122  TP Sensor Voltage Intermittently Low
P1133  HO2S Insufficient Switching Bank 1, Sensor 1 (Except 4.3L)
P1134  HO2S Transition Time Ratio Bank 1, Sensor 1
P1153  HO2S Insufficient Switching Bank 2, Sensor 1
P1154  HO2S Transition Time Ratio Bank 2, Sensor 1
P1345  CKP/CMP Correlation
P1351  IC Circuit High Voltage
P1361  IC Circuit Low Voltage
P1380  EBCM DTC Detected Rough Road Data Unusable
P1381  Misfire Detected, No EBCM/PCM/VCM Serial Data
P1406  EGR Pintle Position Circuit Fault
P1415  AIR System Bank 1
P1416  AIR System Bank 2
P1441  EVAP Control System Flow During Non-Purge)
P1508  IAC System - Low RPM
P1509  IAC System - High RPM