P0769 Fault Code in Land Rover: Causes, Symptoms, and Fixes

This code means the Transmission Control Module (TCM) has detected that Shift Solenoid “D” is not performing as expected. It may be stuck off, not allowing fluid pressure to route correctly for gear changes.

Possible Causes

1. Faulty Shift Solenoid “D”
2. Dirty or low transmission fluid
3. Clogged transmission filter
4. Blocked hydraulic passages in the valve body
5. Damaged wiring/connectors in solenoid circuit
6. Faulty TCM/PCM

Symptoms

1. Harsh or delayed shifting
2. Transmission may get stuck in a single gear (failsafe/limp mode)
3. Slipping during gear changes
4. Poor fuel efficiency
5. Check Engine Light (CEL) or transmission warning lamp

Recommended Fixes

1. Check fluid level & condition – replace fluid if burnt/dirty.
2. Inspect transmission filter – replace if clogged.
3. Inspect wiring & connectors – look for corrosion, loose pins, or damaged wires.
4. Test Shift Solenoid “D” with a scan tool or multimeter (resistance check).
5. If solenoid is faulty → replace solenoid or valve body (if solenoids are integrated).
6. If issue persists → further diagnosis of TCM/PCM or internal transmission hydraulics.