Entering On-Board Diagnostics
WARNING: This page is about a different car, the 2002 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Accidental air bag deployment is possible. Personal injury may result. To avoid possible injury after repairs, turn ignition on with negative battery cable disconnected. Exit vehicle. Ensure vehicle is clear of personnel and connect negative battery cable.
Before entering on-board diagnostics, go to PRETEST INSPECTION & DIAGNOSTIC PROCEDURE . Ensure battery is fully charged. Connect DRBIII to data link connector. Data link connector is located under lower left side of instrument panel. Follow DRBIII manufacturer instructions and check for fault messages. If any fault messages exist, go to Diagnostic Trouble Code (DTC) identification table for appropriate test. See DIAGNOSTIC TROUBLE CODES (DTCS) table.
DIAGNOSTIC TROUBLE CODES (DTCS)
| DRBIII Fault Message | Go To Test |
|---|---|
| ACCELEROMETER 1 | TEST 1A |
| ACCELEROMETER 2 | TEST 1A |
| INTERNAL 1 | TEST 1A |
| OUTPUT DRIVER 1 | TEST 1A |
| STORED ENERGY FIRING 1 | TEST 1A |
| LOSS OF IGNITION RUN ONLY | TEST 2A |
| LOSS OF IGNITION RUN-START | TEST 3A |
| DRIVER CURTAIN SQUIB CIRCUIT OPEN | TEST 4A |
| DRIVER CURTAIN SQUIB CIRCUIT SHORT | TEST 5A |
| DRIVER CURTAIN SQUIB CIRCUIT SHORT TO BATTERY | TEST 6A |
| DRIVER CURTAIN SQUIB CIRCUIT SHORT TO GROUND | TEST 7A |
| PASSENGER CURTAIN SQUIB CIRCUIT OPEN | TEST 8A |
| PASSENGER CURTAIN SQUIB CIRCUIT SHORT | TEST 9A |
| PASSENGER CURTAIN SQUIB CIRCUIT SHORT TO BATTERY | TEST 10A |
| PASSENGER CURTAIN SQUIB CIRCUIT SHORT TO GROUND | TEST 11A |
| CLUSTER MESSAGE MISMATCH | TEST 12A |
| DRIVER SQUIB 1 CIRCUIT OPEN | TEST 13A |
| DRIVER SQUIB 1 CIRCUIT SHORT | TEST 14A |
| DRIVER SQUIB 1 CIRCUIT SHORT TO BATTERY | TEST 15A |
| DRIVER SQUIB 1 CIRCUIT SHORT TO GROUND | TEST 16A |
| DRIVER SQUIB 2 CIRCUIT OPEN | TEST 17A |
| DRIVER SQUIB 2 CIRCUIT SHORT | TEST 18A |
| DRIVER SQUIB 2 CIRCUIT SHORT TO BATTERY | TEST 19A |
| DRIVER SQUIB 2 CIRCUIT SHORT TO GROUND | TEST 20A |
| NO CLUSTER MESSAGE | TEST 21A |
| PASSENGER SQUIB 1 CIRCUIT OPEN | TEST 22A |
| PASSENGER SQUIB 1 CIRCUIT SHORT | TEST 23A |
| PASSENGER SQUIB 1 CIRCUIT SHORT TO BATTERY | TEST 24A |
| PASSENGER SQUIB 1 CIRCUIT SHORT TO GROUND | TEST 25A |
| PASSENGER SQUIB 2 CIRCUIT OPEN | TEST 26A |
| PASSENGER SQUIB 2 CIRCUIT SHORT | TEST 27A |
| PASSENGER SQUIB 2 CIRCUIT SHORT TO BATTERY | TEST 28A |
| PASSENGER SQUIB 2 CIRCUIT SHORT TO GROUND | TEST 29A |
| AIR BAG WARNING LIGHT CIRCUIT OPEN | TEST 30A |
| AIR BAG WARNING LIGHT CIRCUIT SHORT | TEST 30A |
| DRIVER SEAT BELT SWITCH OPEN | TEST 31A |
| DRIVER SEAT BELT SWITCH SHORT TO BATTERY | TEST 32A |
| DRIVER SEAT BELT SWITCH SHORT TO GROUND | TEST 33A |
| PASSENGER SEAT BELT SWITCH OPEN | TEST 34A |
| PASSENGER SEAT BELT SWITCH SHORT TO BATTERY | TEST 35A |
| PASSENGER SEAT BELT SWITCH SHORT TO GROUND | TEST 36A |
| LEFT FRONT IMPACT SENSOR INTERNAL 1 | TEST 37A |
| NO LEFT FRONT IMPACT SENSOR COMMUNICATION | TEST 37A |
| RIGHT FRONT IMPACT SENSOR INTERNAL 1 | TEST 38A |
| NO RIGHT FRONT IMPACT SENSOR COMMUNICATION | TEST 38A |
| LEFT SIDE IMPACT SENSOR INTERNAL 1 | TEST 39A |
| NO LEFT SIDE IMPACT SENSOR COMMUNICATION | TEST 39A |
| RIGHT SIDE IMPACT SENSOR INTERNAL 1 | TEST 40A |
| NO RIGHT SIDE IMPACT SENSOR COMMUNICATION | TEST 40A |
| NO PCI TRANSMISSION | TEST 41A |
| AIR BAG WARNING LIGHT ON WITHOUT TROUBLE CODES | TEST 42A |