Code 56 (AUC Signal > 14 Min on)

^D^ Defect code memory: 56 AUC signal >14 min. "ON"

Explanation:
This defect code is stored when the AUC signal is detected as being active for longer than 14 minutes at the black connector, Pin 8.

Effect of defect:
If the defect is a current defect, the AUC function is switched off and the function LED goes out.

Possible cause:
Wire or AUC control unit defective.

Troubleshooting:
Check wire and repair if necessary, or renew component.