Defect Code 37

Defect code 37:

•D• 900 Defect code memory: 37 control unit supply:

Explanation: This defect code is stored when the voltage supply exceeds 16 V. A drop in the voltage below 10 V is detected 3 min after the start at the earliest.

Possible cause:

- Contact resistances at the wire connections

- Insufficient V-belt tension

- Voltage regulator or alternator defective

Troubleshooting: As displayed on screen.