Heating System H02
Fault code 26Temperature mixing valve motor - No reaction to activation, signal unclear
Diagnostic conditions
- Ignition on
- No control module fault stored
- No fault with power supply sensors (5 V) stored
Possible cause of fault
- Short circuit to B+/ground/between one another or open circuit in the wiring between the air-conditioning system regulator and temperature mixing valve
- Temperature mixing valve stiff
- Servo motor for temperature mixing valve faulty
- Air-conditioning system regulator faulty
Affected pins
Connector B, pin 9, pin 13, and pin 20
Plug D, pin 2 and pin 10
Diagnosis/troubleshooting
