Symptom to component chart
- Make
- Rover
- Model
- 600 Repair Manual Supplement
- Year
- 1993–1999
- Section
- Fault diagnosis › Symptom to component chart
Automatic gearboxSymptom to component chart · page 1 of 2
SYMPTOM TO COMPONENT CHART
| Number of D4 warning light blinks while service check connector is jumped | D4 warning light | Possible Cause | Symptom |
|---|---|---|---|
| 1 | Blinks | • Disconnected lock-up control solenoid valve A connector • Short or open in lock-up control solenoid valve A • Faulty lock-up control solenoid valve A | • Lock up clutch does not engage. • Lock up clutch does not disengage. • Unstable idle speed. |
| 2 | Blinks | • disconnected lock-up control solenoid valve b connector. • Short or open in lock-up control solenoid valve B wire. • Faulty lock up control solenoid valve B | • Lock up clutch does not engage. |
| 3 | Blinks or OFF | • Disconnected throttle position (TP) sensor connector. • Short or open in TP sensor wire • Faulty TP sensor | • Lock up clutch does not engage. |
| 4 | Blinks | • Disconnected vehicle speed sensor (VSS) connector • Short or open in the VSS wire • Faulty VSS | • Lock up clutch does not engage. |
| 5 | Blinks | • Short in A/T gear position switch wire • Faulty A/T gear position switch | • Fails to shift other than 2nd-4th gears. • Lock-up clutch does not engage |
| 6 | OFF | • Disconnected A/T gear position switch connector • Short in A/T gear position switch wire • Faulty A/T gear position switch | • Fails to shift other than 2nd-4th gears. • Lock-up clutch does not engage • Lock-up clutch engages and disengages alternatively. |
| 7 | Blinks | • Disconnected shift control solenoid valve A connector • Short or open in shift control solenoid valve A wire • Faulty shift control solenoid valve B | • Fails to shift (between 1st-4th, 2nd-4th or 2nd-3rd gears only). • Fails to shift (stuck in 4th gear) |
| 8 | Blinks | • Disconnected shift control solenoid valve B connector. • Short or open in shift control solenoid valve B wire • Faulty shift control solenoid valve B | • Fails to shift (stuck in 1st or 4th) |
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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