Diesel Data: Automotive Repair

Fault Code 46

Fault Code 46

Servomotor - Foot
The resistance between pins 1 and 3, motor 5-way connector, should read 4.8 - 7.2 K Ohms.

If the resistance is outside of the set limits, renew the motor.

The motor operation can be checked by applying battery voltage to pin 5, motor 5 way connector, and ground to pin 4 of the connector. The motor arm should rotate smoothly in a clockwise direction. Renew the motor if the arm does not rotate smoothly.

Apply battery voltage to pin 4, motor 5-way connector, and ground to pin 5. The motor arm should rotate smoothly in a anti-clockwise direction. Renew the motor if the arm does not rotate smoothly.

Inspect the harness for open circuit or short circuit to ground. repair as necessary. If no harness faults are apparent, renew the Air Conditioning Control Module (A/CCM).