FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Manufacturer Code Charts




Control Panel Fault Code Listing

Condition(s):


NOTE: Reference fault code #23*: In ambient temperatures below 0 °C, this code may be logged because the low ambient causes a temporary low gas pressure.


NOTE: Where the ambient temperature rises above 40 °C, with the engine close to overheating, electrical feed to the compressor clutch may be cut and code #23 registered.


0 Normal operation no fault codes present

Possible Source(s):
- None

Action(s) to take:
- Wait 30 seconds for system self-check.

11 Motorized in-car aspirator malfunction

Possible Source(s):
- Harness/connector fault
- Sensor open/short circuit

Action(s) to take:
- Panel fault codes are not stored for motorized in-car aspirator motor failure.

12 Ambient temperature sensor malfunction

Possible Source(s):
- Harness/connector fault
- Sensor open/short circuit

Action(s) to take:
- After rectification, disconnect the vehicle battery for 10 seconds to reset the system.

13 Evaporator temperature sensor malfunction

Possible Source(s):
- Harness/connector fault
- Sensor open/short circuit

Action(s) to take:
- Refer to PDU

14 Water temperature input malfunction

Possible Source(s):
- Instrument cluster output

Action(s) to take:
- Refer to PDU

15 Heater matrix temperature sensor malfunction

Possible Source(s):
- Harness/connector fault
- Sensor open/short circuit

Action(s) to take:
- Refer to PDU

21 Solar sensor

Possible Source(s):
- Sensor open/short circuit

Action(s) to take:
- Refer to PDU

22 Compressor lock signal fault

Possible Source(s):
- Low refrigerant charge, low compressor oil level, loose drive belt
- Harness/connector fault

Action(s) to take:
- Adjust items as required

23 Refrigerant pressure switch malfunction

Possible Source(s):
- Harness/connector fault
- Switch open/short circuit

Action(s) to take:
- Refer to PDU

23 Refrigerant pressure low refrigerant charge*

Possible Source(s):
- Leak from damaged pipe or joint

Action(s) to take:
- Rectify as required & recharge system

24 Face vent demand potentiometer fault

Possible Source(s):
- Potentiometer open/short circuit
- Harness/connector fault

Action(s) to take:
- Refer to PDU

31 LH fresh/recirc. potentiometer fault

Possible Source(s):
- Harness/connector fault
- In certain circumstances the servo motor may over-travel & cause further logged faults. This may be cured, following fault rectification, by cycling the ignition ON-OFF-ON 3 times

Action(s) to take:
- Refer to PDU

32 RH fresh/recirc. potentiometer fault

Possible Source(s):
- Harness/connector fault
- In certain circumstances the servo motor may over-travel & cause further logged faults This may be cured, following fault rectification, by cycling the ignition ON-OFF-ON 3 times

Action(s) to take:
- Refer to PDU

33 Cool air by-pass potentiometer fault

Possible Source(s):
- Harness/connector fault
- In certain circumstances the servo motor may over-travel & cause further logged faults. This may be cured, following fault rectification, by cycling the ignition ON-OFF-ON 3 times

Action(s) to take:
- Refer to PDU

34 Defrost vent potentiometer fault

Possible Source(s):
- Harness/connector fault
- In certain circumstances the servo motor may over-travel & cause further logged faults. This may be cured, following fault rectification, by cycling the ignition ON-OFF-ON 3 times

Action(s) to take:
- Refer to PDU

35 Centre vent potentiometer fault

Possible Source(s):
- Harness/connector fault
- In certain circumstances the servo motor may over-travel & cause further logged faults. This may be cured, following fault rectification, by cycling the ignition ON-OFF-ON 3 times

Action(s) to take:
- Refer to PDU

36 Foot vent potentiometer fault

Possible Source(s):
- Harness/connector fault
- In certain circumstances the servo motor may over-travel & cause further logged faults. This may be cured, following fault rectification, by cycling the ignition ON-OFF-ON 3 times

Action(s) to take:
- Refer to PDU

41 LH fresh/recirc. motor fault

Possible Source(s):
- Harness/connector fault
- Servo motor seized or sticking
- Flap seized or sticking

Action(s) to take:
- Refer to PDU

42 RH fresh/recirc. motor fault

Possible Source(s):
- Harness/connector fault
- Servo motor seized or sticking
- Flap seized or sticking

Action(s) to take:
- Refer to PDU

43 Cool air by-pass motor fault

Possible Source(s):
- Harness/connector fault
- Servo motor seized or sticking
- Flap seized or sticking

Action(s) to take:
- Refer to PDU

43 Cool Air by-pass motor fault

Possible Source(s):
- Harness/connector fault
- Servo motor seized or sticking
- Flap seized or sticking

Action(s) to take:
- Refer to PDU

44 Defrost vent motor fault

Possible Source(s):
- Harness/connector fault
- Servo motor seized or sticking
- Flap seized or sticking

Action(s) to take:
- Refer to PDU

45 Centre vent motor fault

Possible Source(s):
- Harness/connector fault
- Servo motor seized or sticking
- Flap seized or sticking

Action(s) to take:
- Refer to PDU

46 Foot vent motor fault

Possible Source(s):
- Harness/connector fault
- Servo motor seized or sticking
- Flap seized or sticking

Action(s) to take:
- Refer to PDU