Range Rover P38
HEATING AND VENTILATION
3
FAULT DIAGNOSIS
Symptom - Heater Emits Ambient Air Only
POSSIBLE CAUSE
REMEDY
1. Air inlet housing vent flap
locked in ’open’ position due to
inoperative servo motor.
1. Renew servo motor.
2. Blown heating and ventilation
system fuse.
2. Check and renew fuses 8 or 17.
Symptom - No Boosted Air Supply To Heater Distribution Unit.
POSSIBLE CAUSE
REMEDY
1. Blower motor(s) inoperative.
1. Renew blower motor(s).
2. Blown motor fuse.
2. Check and renew fuses 42 or 43.
3. Loose electrical connections.
3. Check and tighten all relevant connections.
Symptom - Individual Heating and Ventilation Function/s Inoperative When Switch Control/s Are Used.
POSSIBLE CAUSE
REMEDY
1. Switch function faulty.
1. Renew switch control panel.
2. Switch control panel ECU
faulty.
2. Check and renew fuse 8 or fit new control panel.
Symptom - Heating and Ventilation System Inoperative.
POSSIBLE CAUSE
REMEDY
1. Blown heating and ventilation
system fuse.
1. Check and renew fuses 8 or 17.
2. Switch control panel ECU
faulty.
2. Check and renew fuse 8 or fit new control panel.