Defect Code 27 - 44

Defect Codes 27-44:

*D* Defect code memory: 27-44; One or Several Defect Codes between 27 and 44 Stored (Defective Polarity):

Explanation: The voltage value exceeds or drops below the permissible voltage range of the potentiometer (0.1 V to 4.5 V).

Possible causes: Short or break on wire from the control unit to the corresponding potentiometer.

Troubleshooting: Check wire from control unit to corresponding potentiometer and repair If necessary:

Backrest potentiometer: Control unit connector X 655 Pin 1, 2, 3 to potentiometer connector X 690 Pin 1, 2, 3.

Seat height potentiometer: Control unit connector X 654 Pin 1, 2, 3 to potentiometer connector X 688 Pin 1, 2, 3.

Seat movement potentiometer: Control unit connector X 657 Pin 1, 2, 3 to potentiometer connector X 686 Pin 1, 2, 3.

Seat tilt potentiometer: Control unit connector X 656 Pin 1, 2, 3 to potentiometer connector X 687 Pin 1, 2, 3.

Thigh support (only sports seat!): Control unit connector X 18181 Pin 1, 2, 3 to potentiometer connector X 884 Pin 1, 2, 3.

Passenger's mirror: Control unit connector X 601 Pin 6, 10, 21, 25 to potentiometer connector X 18172 Pin 6, 7, 8, 9.

Driver's mirror: Control unit connector X 601 Pin 1, 2, 3, 4 to potentiometer connector X 18171 Pin 6, 7, 8, 9.

If wires are OK, renew corresponding potentiometer. Check voltage ranges by activation and screen display.