A L L Diagnostic Trouble Codes ( DTC )
Testing and Inspection- Diagnostic Trouble Code Descriptions
- B Codes
- C Codes
- P Codes
- DTC's Listed By Related Systems
- System and Fault Description
- P0101
- P0102
- P0103
- P0106
- P0107
- P0111
- P0112
- P0113
- P0116
- P0117
- P0118
- P0121
- P0122
- P0123
- P0125
- P0131
- P0132
- P0133
- P0135
- P0137
- P0138
- P0140
- P0151
- P0152
- P0153
- P0155
- P0157
- P0158
- P0160
- P0171
- P0172
- P0174
- P0175
- P0201
- P0202
- P0203
- P0204
- P0205
- P0206
- P0207
- P0208
- P0222
- P0223
- P0300
- P0301
- P0302
- P0303
- P0304
- P0305
- P0306
- P0307
- P0308
- P0327
- P0328
- P0332
- P0333
- P0335
- P0340
- P0351
- P0352
- P0353
- P0354
- P0355
- P0356
- P0357
- P0358
- P0400
- P0405
- P0406
- P0420
- P0430
- P0442
- P0444
- P0445
- P0447
- P0448
- P0452
- P0453
- P0460
- P0506
- P0507
- P0560
- P0566
- P0567
- P0568
- P0569
- P0570
- P0603
- P0702
- P0706
- P0710
- P0715
- P0721
- P0731
- P0732
- P0733
- P0734
- P0735
- P0741
- P0742
- P0743
- P0753
- P0758
- P0763
- P0790
- P1000
- P1104
- P1111
- P1112
- P1113
- P1121
- P1122
- P1123
- P1221
- P1222
- P1223
- P1224
- P1226
- P1227
- P1228
- P1229
- P1230
- P1235
- P1236
- P1237
- P1238
- P1240
- P1241
- P1242
- P1243
- P1245
- P1246
- P1250
- P1251
- P1252
- P1253
- P1260
- P1313
- P1314
- P1316
- P1336
- P1367
- P1368
- P1392
- P1393
- P1396
- P1397
- P1398
- P1474
- P1475
- P1476
- P1516
- P1517
- P1571
- P1603
- P1605
- P1606
- P1608
- P1609
- P1611
- P1612
- P1637
- P1638
- P1642
- P1643
- P1646
- P1720
- P1722
- P1726
- P1730
- P1732
- P1733
- P1734
- P1745
- P1746
- P1747
- P1748
- P1779
- P1789
- P1793
- P1794
- P1795
- P1796
- P1797
- P1798
- P1799
- U Codes
- Manufacturer Code Charts
- B Code Charts
- No DTC
- B1250
- B1253
- B1254
- B1257
- B1258
- B1260
- B1262
- B1263
- B1264
- B1265
- B1266
- B1267
- B1268
- B1271
- B1272
- B1275
- B1276
- B1279
- B1280
- B1283
- B1284
- B1287
- B1288
- B1291
- B1292
- B1294
- B1297
- B1298
- B1299
- B1342
- B1355
- B1676
- B1849
- B1852
- B1853
- B1856
- B1857
- B1858
- B1861
- B1862
- B1863
- B1867
- B1869
- B1913
- B1914
- B1921
- B1922
- B1923
- B1924
- B1932
- B1933
- B1934
- B1935
- B1941
- B1942
- B1944
- B1945
- B1946
- B1947
- B1948
- B1949
- B1966
- B1967
- B1968
- B1969
- C Code Charts
- P Code Charts
- All Other P Codes
- P0101
- P0102
- P0103
- P0106
- P0107
- P0111
- P0112
- P0113
- P0116
- P0117
- P0118
- P0121
- P0122
- P0123
- P0125
- P0131
- A1: Retrieve DTCS
- A2: Check O2 Sensor Heater Continuity
- A3: Check For O2 Sensor Failure
- A4: Check For O2 Sensor Failure
- A5: Check For O2 Sensor Failure
- A6: Stop
- A7: Heated O2 Sensor Short Circuit to Ground
- A8: Stop
- A9: Signal Ground 1 Continuity
- A10: Signal Ground 2 Continuity
- A11: Stop
- A12: Check For Heated O2 Sensor Continuity
- A13: Heated O2 Sensor Screen Ground Continuity
- A14: Check For Short to B+
- A15: Check For Short to B+
- A16: Check For Short to B+ At O2 Sensor Heater
- A17: Check B+ At O2 Sensor Heater Circuit
- A18: End
- P0132
- A1: Retrieve DTCS
- A2: Check O2 Sensor Heater Continuity
- A3: Check For O2 Sensor Failure
- A4: Check For O2 Sensor Failure
- A5: Check For O2 Sensor Failure
- A6: Stop
- A7: Heated O2 Sensor Short Circuit to Ground
- A8: Stop
- A9: Signal Ground 1 Continuity
- A10: Signal Ground 2 Continuity
- A11: Stop
- A12: Check For Heated O2 Sensor Continuity
- A13: Heated O2 Sensor Screen Ground Continuity
- A14: Check For Short to B+
- A15: Check For Short to B+
- A16: Check For Short to B+ At O2 Sensor Heater
- A17: Check B+ At O2 Sensor Heater Circuit
- A18: End
- P0133
- B1: Retrieve DTCS
- B2: Check For Low Exhaust Temperature
- B3: Check For O2 Sensor Heater Continuity
- B4: Check For O2 Sensor Failure
- B5: Check For O2 Sensor Failure
- B6: Check For O2 Sensor Failure
- B7: Check For O2 Sensor Failure
- B8: Stop
- B9: Heated O2 Sensor Short Circuit to Ground
- B10: Stop
- B11: Signal Ground 1 Continuity
- B12: Signal Ground 2 Continuity
- B13: Check For Heated O2 Sensor Continuity
- B14: Heated O2 Sensor Screen Ground Continuity
- B15: Check For Short to B+
- B16: Check For Short to B+
- B17: Check For Short To B+ At O2 Sensor Heater
- B18: Check B+ At O2 Sensor Heater Circuit
- B19: End
- P0135
- A1: Retrieve DTCS
- A2: Check O2 Sensor Heater Continuity
- A3: Check For O2 Sensor Failure
- A4: Check For O2 Sensor Failure
- A5: Check For O2 Sensor Failure
- A6: Stop
- A7: Heated O2 Sensor Short Circuit to Ground
- A8: Stop
- A9: Signal Ground 1 Continuity
- A10: Signal Ground 2 Continuity
- A11: Stop
- A12: Check For Heated O2 Sensor Continuity
- A13: Heated O2 Sensor Screen Ground Continuity
- A14: Check For Short to B+
- A15: Check For Short to B+
- A16: Check For Short to B+ At O2 Sensor Heater
- A17: Check B+ At O2 Sensor Heater Circuit
- A18: End
- P0137
- C1: Retrieve DTCS
- C2: Check For O2 Sensor Failure
- C3: Check For O2 Sensor Failure
- C4: Check For O2 Sensor Failure
- C5: Check For O2 Sensor Failure
- C6: Stop
- C7: Check For O2 Sensor Continuity
- C8: O2 Sensor Screen Ground Continuity
- C9: O2 Sensor Short Circuit to Ground
- C10: Stop
- C11: Signal Ground 1 Continuity
- C12: Signal Ground 2 Continuity
- C13: Stop
- C14: Check For O2 Sensor Continuity
- C15: O2 Sensor Screen Ground Continuity
- C16: Check For Short to B+
- C17: Check For Short to B+
- C18: Check Harness Short to Ground
- C19: Check Harness Short Core to Core
- C20: End
- P0138
- C1: Retrieve DTCS
- C2: Check For O2 Sensor Failure
- C3: Check For O2 Sensor Failure
- C4: Check For O2 Sensor Failure
- C5: Check For O2 Sensor Failure
- C6: Stop
- C7: Check For O2 Sensor Continuity
- C8: O2 Sensor Screen Ground Continuity
- C9: O2 Sensor Short Circuit to Ground
- C10: Stop
- C11: Signal Ground 1 Continuity
- C12: Signal Ground 2 Continuity
- C13: Stop
- C14: Check For O2 Sensor Continuity
- C15: O2 Sensor Screen Ground Continuity
- C16: Check For Short to B+
- C17: Check For Short to B+
- C18: Check Harness Short to Ground
- C19: Check Harness Short Core to Core
- C20: End
- P0140
- D1: Retrieve DTCS
- D2: Check For Low Exhaust Temperature
- D3: Check For O2 Sensor Failure
- D4: Check For O2 Sensor Failure
- D5: Check For O2 Sensor Failure
- D6: Check For O2 Sensor Failure
- D7: Stop
- D8: Check For O2 Sensor Continuity
- D9: O2 Sensor Screen Ground Continuity
- D10: O2 Sensor Short Circuit to Ground
- D11: Stop
- D12: Signal Ground 1 Continuity
- D13: Signal Ground 2 Continuity
- D14: Stop
- D15: Check For O2 Sensor Continuity
- D16: O2 Sensor Screen Ground Continuity
- D17: Check For Short to B+
- D18: Check For Short to B+
- D19 Check Harness Short to Ground
- D20: Check Harness Short Core to Core
- D21: End
- P0151
- E1: Retrieve DTCS
- E2: Check O2 Sensor Heater Continuity
- E3: Check For O2 Sensor Failure
- E4: Check For O2 Sensor Failure
- E5: Check For O2 Sensor Failure
- E6: Stop
- E7: Heated O2 Sensor Short Circuit to Ground
- E8: Stop
- E9: Signal Ground 1 Continuity
- E10: Signal Ground 2 Continuity
- E11: Stop
- E12: Check For Heated 02 Sensor Continuity
- E13: Heated O2 Sensor Screen Ground Continuity
- E14: Check For Short to B+
- E15: Check For Short to B+
- E16: Check For Short to B+ At O2 Sensor Heater
- E17: Check B+ At O2 Sensor Heater Circuit
- E18: End
- P0152
- E1: Retrieve DTCS
- E2: Check O2 Sensor Heater Continuity
- E3: Check For O2 Sensor Failure
- E4: Check For O2 Sensor Failure
- E5: Check For O2 Sensor Failure
- E6: Stop
- E7: Heated O2 Sensor Short Circuit to Ground
- E8: Stop
- E9: Signal Ground 1 Continuity
- E10: Signal Ground 2 Continuity
- E11: Stop
- E12: Check For Heated 02 Sensor Continuity
- E13: Heated O2 Sensor Screen Ground Continuity
- E14: Check For Short to B+
- E15: Check For Short to B+
- E16: Check For Short to B+ At O2 Sensor Heater
- E17: Check B+ At O2 Sensor Heater Circuit
- E18: End
- P0153
- F1: Retrieve DTCS
- F2: Check For Low Exhaust Temperature
- F3: Check For O2 Sensor Heater Continuity
- F4: Check For O2 Sensor Failure
- F5: Check For O2 Sensor Failure
- F6: Check For O2 Sensor Failure
- F7: Check For O2 Sensor Failure
- F8: Stop
- F9: Heated O2 Sensor Short Circuit to Ground
- F10: Stop
- F11: Signal Ground 1 Continuity
- F12: Signal Ground 2 Continuity
- F13: Check For Heated O2 Sensor Continuity
- F14: Heated O2 Sensor Screen Ground Continuity
- F15: Check For Short to B+
- F16: Check For Short to B+
- F17: Check For Short to B+ At O2 Sensor Heater
- F18: Check B+ At O2 Sensor Heater Circuit
- F19: End
- P0155
- E1: Retrieve DTCS
- E2: Check O2 Sensor Heater Continuity
- E3: Check For O2 Sensor Failure
- E4: Check For O2 Sensor Failure
- E5: Check For O2 Sensor Failure
- E6: Stop
- E7: Heated O2 Sensor Short Circuit to Ground
- E8: Stop
- E9: Signal Ground 1 Continuity
- E10: Signal Ground 2 Continuity
- E11: Stop
- E12: Check For Heated 02 Sensor Continuity
- E13: Heated O2 Sensor Screen Ground Continuity
- E14: Check For Short to B+
- E15: Check For Short to B+
- E16: Check For Short to B+ At O2 Sensor Heater
- E17: Check B+ At O2 Sensor Heater Circuit
- E18: End
- P0157
- G1: Retrieve DTCS
- G2: Check For O2 Sensor Failure
- G3: Check For O2 Sensor Failure
- G4: Check For O2 Sensor Failure
- G5: Check For O2 Sensor Failure
- G6: Stop
- G7: Check For O2 Sensor Continuity
- G8: O2 Sensor Screen Ground Continuity
- G9: O2 Sensor Short Circuit to Ground
- G10: Stop
- G11: Signal Ground 1 Continuity
- G12: Signal Ground 2 Continuity
- G13: Stop
- G14: Check For O2 Sensor Continuity
- G15: O2 Sensor Screen Ground Continuity
- G16: Check For Short to B+
- G17: Check For Short to B+
- G18: Check Harness Short to Ground
- G19: Check Harness Short Core to Core
- G20: End
- P0158
- G1: Retrieve DTCS
- G2: Check For O2 Sensor Failure
- G3: Check For O2 Sensor Failure
- G4: Check For O2 Sensor Failure
- G5: Check For O2 Sensor Failure
- G6: Stop
- G7: Check For O2 Sensor Continuity
- G8: O2 Sensor Screen Ground Continuity
- G9: O2 Sensor Short Circuit to Ground
- G10: Stop
- G11: Signal Ground 1 Continuity
- G12: Signal Ground 2 Continuity
- G13: Stop
- G14: Check For O2 Sensor Continuity
- G15: O2 Sensor Screen Ground Continuity
- G16: Check For Short to B+
- G17: Check For Short to B+
- G18: Check Harness Short to Ground
- G19: Check Harness Short Core to Core
- G20: End
- P0160
- H1: Retrieve DTCS
- H2: Check For Low Exhaust Temperature
- H3: Check For O2 Sensor Failure
- H4: Check For O2 Sensor Failure
- H5: Check For O2 Sensor Failure
- H6: Check For O2 Sensor Failure
- H7: Stop
- H8: Check For O2 Sensor Continuity
- H9: O2 Sensor Screen Ground Continuity
- H10: O2 Sensor Short Circuit to Ground
- H11: Stop
- H12: Signal Ground 1 Continuity
- H13: Signal Ground 2 Continuity
- H14: Stop
- H15: Check For O2 Sensor Continuity
- H16: O2 Sensor Screen Ground Continuity
- H17: Check For Short to B+
- H18: Check For Short to B+
- H19: Check Harness Short to Ground
- H20: Check Harness Short Core to Core
- H21: End
- P0171
- P0172
- P0174
- P0175
- P0201
- A1: Retrieve DTCS
- A2: Check Injector Coil Resistance
- A3: Check Injector Coil Insulation
- A4: Check Injector Supply
- A5: Check Injector Feed Continuity
- A6: Check Fuse to Relay Continuity
- A7: Check Injector Circuit Continuity
- A8: Check Injector Ground
- A9: Check Injector Ground
- A10: Check For Short to 1B, 2A, 3A, 4B GND
- A11: Check For Short to 1A, 2B, 3B, 4A GND
- A12: Check Harness Short Core to Core
- A13: End
- P0202
- A1: Retrieve DTCS
- A2: Check Injector Coil Resistance
- A3: Check Injector Coil Insulation
- A4: Check Injector Supply
- A5: Check Injector Feed Continuity
- A6: Check Fuse to Relay Continuity
- A7: Check Injector Circuit Continuity
- A8: Check Injector Ground
- A9: Check Injector Ground
- A10: Check For Short to 1B, 2A, 3A, 4B GND
- A11: Check For Short to 1A, 2B, 3B, 4A GND
- A12: Check Harness Short Core to Core
- A13: End
- P0203
- A1: Retrieve DTCS
- A2: Check Injector Coil Resistance
- A3: Check Injector Coil Insulation
- A4: Check Injector Supply
- A5: Check Injector Feed Continuity
- A6: Check Fuse to Relay Continuity
- A7: Check Injector Circuit Continuity
- A8: Check Injector Ground
- A9: Check Injector Ground
- A10: Check For Short to 1B, 2A, 3A, 4B GND
- A11: Check For Short to 1A, 2B, 3B, 4A GND
- A12: Check Harness Short Core to Core
- A13: End
- P0204
- A1: Retrieve DTCS
- A2: Check Injector Coil Resistance
- A3: Check Injector Coil Insulation
- A4: Check Injector Supply
- A5: Check Injector Feed Continuity
- A6: Check Fuse to Relay Continuity
- A7: Check Injector Circuit Continuity
- A8: Check Injector Ground
- A9: Check Injector Ground
- A10: Check For Short to 1B, 2A, 3A, 4B GND
- A11: Check For Short to 1A, 2B, 3B, 4A GND
- A12: Check Harness Short Core to Core
- A13: End
- P0205
- A1: Retrieve DTCS
- A2: Check Injector Coil Resistance
- A3: Check Injector Coil Insulation
- A4: Check Injector Supply
- A5: Check Injector Feed Continuity
- A6: Check Fuse to Relay Continuity
- A7: Check Injector Circuit Continuity
- A8: Check Injector Ground
- A9: Check Injector Ground
- A10: Check For Short to 1B, 2A, 3A, 4B GND
- A11: Check For Short to 1A, 2B, 3B, 4A GND
- A12: Check Harness Short Core to Core
- A13: End
- P0206
- A1: Retrieve DTCS
- A2: Check Injector Coil Resistance
- A3: Check Injector Coil Insulation
- A4: Check Injector Supply
- A5: Check Injector Feed Continuity
- A6: Check Fuse to Relay Continuity
- A7: Check Injector Circuit Continuity
- A8: Check Injector Ground
- A9: Check Injector Ground
- A10: Check For Short to 1B, 2A, 3A, 4B GND
- A11: Check For Short to 1A, 2B, 3B, 4A GND
- A12: Check Harness Short Core to Core
- A13: End
- P0207
- A1: Retrieve DTCS
- A2: Check Injector Coil Resistance
- A3: Check Injector Coil Insulation
- A4: Check Injector Supply
- A5: Check Injector Feed Continuity
- A6: Check Fuse to Relay Continuity
- A7: Check Injector Circuit Continuity
- A8: Check Injector Ground
- A9: Check Injector Ground
- A10: Check For Short to 1B, 2A, 3A, 4B GND
- A11: Check For Short to 1A, 2B, 3B, 4A GND
- A12: Check Harness Short Core to Core
- A13: End
- P0208
- A1: Retrieve DTCS
- A2: Check Injector Coil Resistance
- A3: Check Injector Coil Insulation
- A4: Check Injector Supply
- A5: Check Injector Feed Continuity
- A6: Check Fuse to Relay Continuity
- A7: Check Injector Circuit Continuity
- A8: Check Injector Ground
- A9: Check Injector Ground
- A10: Check For Short to 1B, 2A, 3A, 4B GND
- A11: Check For Short to 1A, 2B, 3B, 4A GND
- A12: Check Harness Short Core to Core
- A13: End
- P0222
- P0223
- P0300
- P0301
- P0302
- P0303
- P0304
- P0305
- P0306
- P0307
- P0308
- P0327
- P0328
- P0332
- P0333
- P0335
- P0340
- P0351
- A1: Retrieve DTCS
- A2: Check Coil Supply
- A3: Check Coil Resistance
- A4: Check Relay to Coil Continuity
- A5: Check Fuse to Relay Continuity
- A6: Check B+ At Relay Coil
- A7: Check B+ At ECM
- A8: Check Continuity Relay to ECM
- A9: Check Harness Continuity Coil to Control Module
- A10: Check Harness Continuity ECM to Control Module
- A11: Check Ground Continuity Control Module
- A12: Check For Short to B+ - (#1 Control Module)
- A13: Check For Short to B+ - (#2 Control Module)
- A14: Check For Short to B+
- A15: Check Harness Short Core to Core
- A16: Check For Short #1 Module to Ground
- A17: Check For Short #2 Module to Ground
- A18: End
- P0352
- A1: Retrieve DTCS
- A2: Check Coil Supply
- A3: Check Coil Resistance
- A4: Check Relay to Coil Continuity
- A5: Check Fuse to Relay Continuity
- A6: Check B+ At Relay Coil
- A7: Check B+ At ECM
- A8: Check Continuity Relay to ECM
- A9: Check Harness Continuity Coil to Control Module
- A10: Check Harness Continuity ECM to Control Module
- A11: Check Ground Continuity Control Module
- A12: Check For Short to B+ - (#1 Control Module)
- A13: Check For Short to B+ - (#2 Control Module)
- A14: Check For Short to B+
- A15: Check Harness Short Core to Core
- A16: Check For Short #1 Module to Ground
- A17: Check For Short #2 Module to Ground
- A18: End
- P0353
- A1: Retrieve DTCS
- A2: Check Coil Supply
- A3: Check Coil Resistance
- A4: Check Relay to Coil Continuity
- A5: Check Fuse to Relay Continuity
- A6: Check B+ At Relay Coil
- A7: Check B+ At ECM
- A8: Check Continuity Relay to ECM
- A9: Check Harness Continuity Coil to Control Module
- A10: Check Harness Continuity ECM to Control Module
- A11: Check Ground Continuity Control Module
- A12: Check For Short to B+ - (#1 Control Module)
- A13: Check For Short to B+ - (#2 Control Module)
- A14: Check For Short to B+
- A15: Check Harness Short Core to Core
- A16: Check For Short #1 Module to Ground
- A17: Check For Short #2 Module to Ground
- A18: End
- P0354
- A1: Retrieve DTCS
- A2: Check Coil Supply
- A3: Check Coil Resistance
- A4: Check Relay to Coil Continuity
- A5: Check Fuse to Relay Continuity
- A6: Check B+ At Relay Coil
- A7: Check B+ At ECM
- A8: Check Continuity Relay to ECM
- A9: Check Harness Continuity Coil to Control Module
- A10: Check Harness Continuity ECM to Control Module
- A11: Check Ground Continuity Control Module
- A12: Check For Short to B+ - (#1 Control Module)
- A13: Check For Short to B+ - (#2 Control Module)
- A14: Check For Short to B+
- A15: Check Harness Short Core to Core
- A16: Check For Short #1 Module to Ground
- A17: Check For Short #2 Module to Ground
- A18: End
- P0355
- A1: Retrieve DTCS
- A2: Check Coil Supply
- A3: Check Coil Resistance
- A4: Check Relay to Coil Continuity
- A5: Check Fuse to Relay Continuity
- A6: Check B+ At Relay Coil
- A7: Check B+ At ECM
- A8: Check Continuity Relay to ECM
- A9: Check Harness Continuity Coil to Control Module
- A10: Check Harness Continuity ECM to Control Module
- A11: Check Ground Continuity Control Module
- A12: Check For Short to B+ - (#1 Control Module)
- A13: Check For Short to B+ - (#2 Control Module)
- A14: Check For Short to B+
- A15: Check Harness Short Core to Core
- A16: Check For Short #1 Module to Ground
- A17: Check For Short #2 Module to Ground
- A18: End
- P0356
- A1: Retrieve DTCS
- A2: Check Coil Supply
- A3: Check Coil Resistance
- A4: Check Relay to Coil Continuity
- A5: Check Fuse to Relay Continuity
- A6: Check B+ At Relay Coil
- A7: Check B+ At ECM
- A8: Check Continuity Relay to ECM
- A9: Check Harness Continuity Coil to Control Module
- A10: Check Harness Continuity ECM to Control Module
- A11: Check Ground Continuity Control Module
- A12: Check For Short to B+ - (#1 Control Module)
- A13: Check For Short to B+ - (#2 Control Module)
- A14: Check For Short to B+
- A15: Check Harness Short Core to Core
- A16: Check For Short #1 Module to Ground
- A17: Check For Short #2 Module to Ground
- A18: End
- P0357
- A1: Retrieve DTCS
- A2: Check Coil Supply
- A3: Check Coil Resistance
- A4: Check Relay to Coil Continuity
- A5: Check Fuse to Relay Continuity
- A6: Check B+ At Relay Coil
- A7: Check B+ At ECM
- A8: Check Continuity Relay to ECM
- A9: Check Harness Continuity Coil to Control Module
- A10: Check Harness Continuity ECM to Control Module
- A11: Check Ground Continuity Control Module
- A12: Check For Short to B+ - (#1 Control Module)
- A13: Check For Short to B+ - (#2 Control Module)
- A14: Check For Short to B+
- A15: Check Harness Short Core to Core
- A16: Check For Short #1 Module to Ground
- A17: Check For Short #2 Module to Ground
- A18: End
- P0358
- A1: Retrieve DTCS
- A2: Check Coil Supply
- A3: Check Coil Resistance
- A4: Check Relay to Coil Continuity
- A5: Check Fuse to Relay Continuity
- A6: Check B+ At Relay Coil
- A7: Check B+ At ECM
- A8: Check Continuity Relay to ECM
- A9: Check Harness Continuity Coil to Control Module
- A10: Check Harness Continuity ECM to Control Module
- A11: Check Ground Continuity Control Module
- A12: Check For Short to B+ - (#1 Control Module)
- A13: Check For Short to B+ - (#2 Control Module)
- A14: Check For Short to B+
- A15: Check Harness Short Core to Core
- A16: Check For Short #1 Module to Ground
- A17: Check For Short #2 Module to Ground
- A18: End
- P0400
- A1: Retrieve DTCS
- A2: Check Transfer Pipe
- A3: Check Stepper Coil Open Circuit
- A4: Check Current Drawn
- A5: Check Harness Continuity
- A6: Check Stepper Motor Insulation
- A7: Check EGR Mechanical Condition
- A8: End
- D1: Check For Short to B+
- D2: Check B+ At Stepper Motor
- D3: Check B+ At Stepper Motor
- D4: Check Harness Short to Chassis
- D5: Check Harness Short Core to Core
- D6: Check Harness Continuity
- D7: Check EGR Ground Continuity
- D8: Check B+ Continuity
- D9: End
- P0405
- B1: Retrieve DTCS
- B2: Check Stepper Coil Open Circuit
- B3: Check Current Drawn
- B4: End
- D1: Check For Short to B+
- D2: Check B+ At Stepper Motor
- D3: Check B+ At Stepper Motor
- D4: Check Harness Short to Chassis
- D5: Check Harness Short Core to Core
- D6: Check Harness Continuity
- D7: Check EGR Ground Continuity
- D8: Check B+ Continuity
- D9: End
- P0406
- C1: Retrieve DTCS
- C2: Check Stepper Coil Short Circuit
- C3: End
- D1: Check For Short to B+
- D2: Check B+ At Stepper Motor
- D3: Check B+ At Stepper Motor
- D4: Check Harness Short to Chassis
- D5: Check Harness Short Core to Core
- D6: Check Harness Continuity
- D7: Check EGR Ground Continuity
- D8: Check B+ Continuity
- D9: End
- P0420
- P0430
- P0441
- P0444
- P0445
- P0460
- P0506
- P0507
- P0560
- P0566
- P0567
- P0568
- P0569
- P0570
- P0603
- P0702
- P0706
- P0710
- P0715
- P0721
- P0731
- P0732
- P0733
- P0734
- P0735
- P0741
- P0742
- P0743
- P0753
- P0758
- P0763
- P0790
- P1000
- P1104
- P1111
- P1121
- P1122
- P1123
- P1221
- P1222
- P1223
- P1224
- Caution
- R1: Retrieve DTCS
- R2: Check Fuse
- R3: Check Relay Supply
- R4: Check Throttle Motor Coil Continuity
- R5: Check Throttle Motor Coil Insulation
- R6: Check Relay Coil Supply
- R7: Check Harness Continuity
- R8: Check B+ At Relay Coil
- R9: Check Harness Continuity - Relay Coil
- R10: Check Harness Continuity - Relay Contact
- R11: Check Harness Continuity - Throttle +VE
- R12: Check Harness Continuity - Throttle -VE
- R13: Check Harness Continuity - Throttle Ground
- R14: Check For Short to B+
- R15: Check For Short to B+
- R16: Check For Short to B+
- R17: Check For Short to B+
- R18: Check Harness Core to Core Insulation
- R19: Check Harness Core to Core Insulation
- R20: End
- P1226
- P1227
- P1228
- P1229
- P1230
- A1: Retrieve DTCS
- A2: Check Fuse
- A3: Check Short to Supply
- A4: Check Supply Voltage
- A5: Check Circuit Continuity
- A6: Check Fuel Pump Drawn Current
- A7: Check B+ At Relay Coil
- A8: Check Relay Coil Circuit Continuity
- A9: Check ECM Ground Continuity
- A10: Check Fuel Pump Continuity
- A11: Check Fuel Pump Ground Continuity
- A12: Check Circuit Continuity
- A13: Check Harness Short to Ground
- A14: Check Core to Core Insulation
- A15: Check Core to Core Insulation
- A16: End
- P1235
- P1236
- P1237
- P1238
- P1240
- C1: Retrieve DTCS
- C2: Check Sensor Supply Voltage
- C3: Check Harness Continuity - Power (Mechanical Guard)
- C4: Check Harness Continuity - Ground (Mechanical Guard)
- C5: Check Harness Continuity - Power (Throttle Position)
- C6: Check Harness Continuity - Ground (Throttle Position)
- C7: Check Harness Continuity - Signal (Throttle Position)
- C8: Check Harness Continuity - Signal (Pedal Demand)
- C9: Check Harness Continuity - Signal (Mechanical Guard)
- C10: Harness Short to Screen
- C11: Check Harness Core to Core Insulation
- C12: Check Output Voltage, Pedal Demand #1 and #2 (Closed Pos.)
- C13: Check Output Voltage, Pedal Demand #1 and #2 (Full Pos.)
- C14: Check Output Voltage - Mechanical Guard (Closed Position)
- C15: Check Output Voltage - Mechanical Guard (Full Position)
- C16: Check Output Voltage, Throttle Pos. #1 and #2 (Closed Pos)
- C17: Check Output Voltage - Throttle Pos #1 and #2 (Full Pos.)
- C18: Check Sensor Supply Voltage
- C19: Check Sensor Supply Voltage
- C20: End
- P1241
- P1242
- P1243
- P1245
- P1246
- P1250
- P1251
- P1252
- P1253
- P1260
- P1313
- P1314
- P1316
- P1336
- P1367
- P1368
- P1474
- P1475
- P1476
- P1516
- P1517
- P1571
- P1603
- P1605
- P1606
- P1608
- P1609
- P1611
- P1612
- P1637
- P1638
- P1642
- P1643
- P1720
- P1722
- P1726
- P1730
- P1732
- P1733
- P1734
- P1745
- P1746
- P1747
- P1748
- P1779
- P1789
- P1793
- P1794
- P1795
- P1796
- P1797
- P1798
- P1799
- U Code Charts
- Manufacturer Code Charts
- Related Tests, Information and Procedures
- Diagnostic Trouble Code Descriptions