Work Instruction 7 - 13
Fault Code 26
Fault Code 26
Temperature Mixing Flap Motor - No Reaction To Activation, Signal Implausible
Diagnostic conditions
- Ignition on
- No control unit fault stored
- No sensor supply voltage fault stored (5 V)
Possible cause of fault
- Short circuit to B+/ground/between wires or open circuit in wiring between air-conditioning system regulator and temperature mixing flap
- Temperature mixing flap stiff
- Temperature mixing flap drive motor faulty
- Air-conditioning system regulator faulty
Affected pins
Plug B, pins 9, 13 and 20
Plug D, pins 2 and 10
Diagnosis/troubleshooting