Diagnostic Index
DIAGNOSTIC REFERENCE CHART
| CHART NO. | SYMPTOM TROUBLESHOOTING | DESCRIPTION | PAGE |
|---|---|---|---|
| 1 | STARTING CONCERNS | No crank | STARTING CONCERNS 01-01A-385. |
| 2 | STARTING CONCERNS | Hard start/long crank Erratic start/erratic crank | HARD START/LONG CRANK/ERRATIC START/ERRATIC CRANK 01-01A-386. |
| 3 | STARTING CONCERNS | No start/normal crank | CRANKS NORMAL BUT WILL NOT START 01-01A-388. |
| 4 | UNIQUE IDLE CONCERNS | Slow return to idle | UNIQUE IDLE CONCERN 01-01A-389. |
| 5 | UNIQUE IDLE CONCERNS | Fast idle Diesels/runs on | FAST IDLE 01-01A-390. |
| 6 | UNIQUE IDLE CONCERNS | Low/Slow idle | LOW IDLE/STALLS DURING DECELERATION 01-01A-391. |
| STALLS/QUITS | Deceleration | LOW IDLE/STALLS DURING DECELERATION 01-01A-391. | |
| 7 | STARTING CONCERNS | Stalls after start | ENGINE POOR DRIVEABILITY 01-01A-392. |
| 7 | STALLS/QUITS | Idle Acceleration Cruise | ENGINE POOR DRIVEABILITY 01-01A-392. |
| 7 | RUNS ROUGH | Idle Acceleration Cruise | ENGINE POOR DRIVEABILITY 01-01A-392. |
| 7 | MISSES | Idle Acceleration Cruise | ENGINE POOR DRIVEABILITY 01-01A-392. |
| 7 | BUCK/JERK | Acceleration Cruise Deceleration | ENGINE POOR DRIVEABILITY 01-01A-392. |
| 7 | HESITATION/STUMBLE | Acceleration | ENGINE POOR DRIVEABILITY 01-01A-392. |
| 7 | SURGE | Acceleration Cruise | ENGINE POOR DRIVEABILITY 01-01A-392. |
| 7 | UNIQUE IDLE CONCERNS | Rolling idle | ENGINE POOR DRIVEABILITY 01-01A-392. |
| 8 | BACKFIRES | Idle Acceleration Deceleration | BACKFIRES 01-01A-396. |
| 9 | LACK/LOSS OF POWER | Acceleration Cruise | LACK/LOSS OF POWER 01-01A-397. |
| 10 | SPARK KNOCK | Acceleration Cruise | KNOCKING/PINGING 01-01A-399. |
| 11 | POOR FUEL ECONOMY | Checks for conditions causing poor fuel economy | POOR FUEL ECONOMY 01-01A-401. |
| 12 | EMISSIONS COMPLIANCE | Diagnostics for a vehicle that has failed an emission check | EMISSION COMPLIANCE 01-01A-403. |
| 13 | WARNING INDICATORS | MIL TCIL | MIL/TCIL NEVER ON AND MIL/TCIL ALWAYS ON 01-01A-410. |
| 14 | AUTOMATIC TRANSAXLE SHIFT CONCERNS | Upshift Downshift Engagement | DIAGNOSIS BY SYMPTOM . |
| 15 | INSTRUMENTATION | Tachometer inoperative Speedometer inoperative Fuel gauge inoperative | SYMPTOM TROUBLESHOOTING CHART - INSTRUMENT CLUSTER . |
| 16 | EXHAUST SYSTEM CONCERNS | Smoke | MIL/TCIL NEVER ON AND MIL/TCIL ALWAYS ON . |
| 17 | FUEL SYSTEM CONCERNS | Odor, engine compartment | FUEL ODOR IN ENGINE COMPARTMENT . |
| 18 | ENGINE NOISE | Under hood | ENGINE NOISE . |
| 19 | EXHAUST SYSTEM CONCERNS | Odor (sulphur/"rotten egg" smell) | EXHAUST SULFUR SMELL . |
| 20 | DTC P1000 RECEIVED DURING EMISSION TEST | ALL SUPPORTED ON BOARD SYSTEM READINESS TESTS NOT COMPLETED . | |
| 21 | FUEL SYSTEM CONCERNS | Fuel pump always runs | FUEL PUMP ALWAYS ON . |