Table 8, Trouble- shooting Chart
If these complaints occur, check the indicated test steps in more detail.
Customer complaint
| Starter turns, engine starts poorly or not at all | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Engine starts and stalls again | ||||||||||||||
| Idling problems (engine speed, exhaust gas) | ||||||||||||||
| Poor throttle response, transition faults | ||||||||||||||
| Misfiring (ignition, injection) | ||||||||||||||
| Engine output/top speed too low | ||||||||||||||
| Fuel consumption too high | ||||||||||||||
| Engine diesels | ||||||||||||||
| Engine pings, knocks | ||||||||||||||
| Engine gets too hot | ||||||||||||||
| Engine stalls at traffic lights | ||||||||||||||
| Fault lamp illuminates permanently or temporarily | ||||||||||||||
| Possible cause | Test step no.: | Trouble codes | ||||||||||||
| · | · | BATTERY VOLTAGE | 01 | 49 | ||||||||||
| · | DIAG. REQUEST, read out trouble code | 02 | ||||||||||||
| IMMOBILISER | 03 | 83 | ||||||||||||
| IMMOBILISER SIG. | 04 | 83, 84, 85 | ||||||||||||
| · | · | · | · | · | · | · | · | TPS SIGNAL | 05 | 21, 22 | ||||
| · | · | · | · | · | · | · | MAP SENSOR | 06 | 33, 34, 43 | |||||
| · | · | · | · | · | · | · | · | COOLANT TEMP. | 07 | 14, 15 | ||||
| · | · | · | · | · | · | · | · | INTAKE AIR TEMP. | 08 | 69, 71 | ||||
| · | · | · | A/C INFORMAT. SW | 09 | - | |||||||||
| · | · | · | A/C LOAD SIGNAL | 10 | - | |||||||||
| · | · | · | PARK/NEUTRAL SW. | 11 | - | |||||||||
| · | · | · | · | FUEL PUMP RELAY | 12 | 28, 29, 32 | ||||||||
| · | · | CLEAR FLOOD MODE | 13 | - | ||||||||||
| · | · | · | · | · | · | · | · | SPARK ADVANCE | 14 | 41, 42, 63, 64 | ||||
| · | · | · | · | · | · | · | · | KNOCK VOLTAGE | 15 | 16, 18 | ||||
| · | · | · | KNOCK PULSES | 16 | 16, 18 | |||||||||
| · | · | · | KNOCK CELL NO. | 17 | - | |||||||||
| · | · | · | KNOCK RTD. CYL.1 | 18 | 16, 18 | |||||||||
| · | · | · | KNOCK RTD. CYL.2 | 19 | 16, 18 | |||||||||
| · | · | · | KNOCK RTD. CYL.3 | 20 | 16, 18 | |||||||||
| · | · | · | KNOCK RTD. CYL.4 | 21 | 16, 18 | |||||||||
| · | SEC.AIR PUMP REL | 22 | 52, 53 | |||||||||||
| · | AIR CONTROL SOL. | 23 | 56, 57 | |||||||||||
| · | · | · | · | · | · | · | · | · | EGR POSITION CMD, EGR POS. FDBK | 24, 25 | 43, 47 | |||
| · | · | · | · | · | · | FUEL TANK VENT. | 26 | 61, 62 | ||||||
| · | · | · | · | · | · | O2 SENSOR, O2 SENSOR LOOP, O2 SENSOR LOOP, O2 INTEGRATOR, O2 BLM CELL NO., O2 BLM CELL CONT | 27, 28, 29, 30, 32, 33 | 13, 44, 45 | ||||||
| · | · | · | · | · | · | O2 BLM ENABLE | 31 | 13, 35, 44, 45 | ||||||
| · | · | · | · | · | ENGINE SPEED | 34 | 19, 35 | |||||||
| · | · | DESIRED IDLE, DES. IDLE ADJUST, IDLE ADJUST, DESIRED IDLE P- N, IDLE ADJUST P- N, DES. IDLE DRIVE, IDLE ADJ. DRIVE | 35, 36, 37, 38, 39, 40, 41 | - | ||||||||||
| · | · | · | · | · | · | · | IAC CNTR. ENABLE | 42 | 35 | |||||
| · | · | · | · | · | · | · | IDLE AIR CONTROL | 43 | 35, 66 | |||||
| · | · | · | · | · | · | · | · | · | INJECTION PULSE | 44 | 17 | |||
| · | · | · | · | · | · | VEHICLE SP.PULSE, VEHICLE SPEED | 46, 47 | 24 | ||||||
| · | · | · | · | · | · | · | TORQUE CONTROL | 48 | 75, 76 | |||||
| · | · | · | · | · | · | POWER ENRICHMENT | 49 | - | ||||||
| · | · | · | · | · | A/C RELAY | 50 | 87, 88 | |||||||
| · | · | · | DEC. FUEL CUTOFF | 51 | - |