Symptom to component chart (page 2 of 2)
- Make
- Rover
- Model
- 600 Repair Manual Supplement
- Year
- 1993–1999
- Section
- Fault diagnosis
Automatic gearboxSymptom to component chart · page 2 of 2
| Number of D4 warning light blinks while service check connector is jumped | D4 warning light | Possible Cause | Symptom |
|---|---|---|---|
| 9 | Blinks | • Disconnected countershaft speed sensor connector • Short or open in the countershaft speed sensor wire • Faulty countershaft speed sensor. | • Lock-up clutch does not engage. |
| 10 | Blinks | • Disconnected engine coolant temperature (ECT) sensor connector. • Short or open in ECT sensor wire • Faulty ECT sensor | |
| 11 | OFF | • Disconnected ignition coil connector • Short or open in ignition coil wire • Faulty ignition coil | • Lock-up clutch does not engage |
| 14 | OFF | • Short or open in FAS (BRN/WHT) wire between the D16 terminal and the ECM. • Trouble in the ECM | |
| 15 | OFF | • Disconnected mainshaft speed sensor connector • Short or open in mainshaft speed sensor wire • Faulty mainshaft speed sensor | • Transmission jerks hard when shifting. |
If the self-diagnosis D4 warning light does not blink, perform an inspection according to the table below.
| Symptom | Probable cause |
|---|---|
| Lock-up clutch does not have duty operation (ON-OFF) | Check A/C signal with A/C on |
| Lock-up clutch does not engage. Shift lever cannot be moved from P position with the brake pedal depressed. | Check A/C signal with A/C on Check brake switch signal |
- If a customer describes the symptoms for codes 3, 6, or 11, yet the D4 warning light is not blinking, it will be necessary to recreate the symptom by test driving, and then checking the D4 warning light with the ignition still ON.
- If the D4 warning light displays codes other than those listed or stays lit continuously, the TCM is faulty.
- Sometimes the D4 warning light and the PGM-Fi warning light may come on simultaneously. If so, check the PGM-Fi system according to the number to of blinks on the warning light, then reset the the memory by removing the BACK UP (RADIO) fuse (7.5A) in the engine compartment fuse/relay box for more than 10 seconds. Drive the vehicle for several minutes at speeds above 30 mph (50 km/h), then recheck the warning light.
Parts & tools for this job For 1993 Rover 600
- PARTTransmission filter kitSearch: Rover 600 1993 transmission filter kit
- FLUIDAutomatic transmission fluidSearch: Rover automatic transmission fluid
- TOOLFluid transfer pumpSearch: fluid transfer pump
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