Diesel Data: Automotive Repair

Steering Pad Switch Circuit

STEERING PAD SWITCH CIRCUIT

CIRCUIT DESCRIPTION

AUTO, TEMP UP (+), TEMP DOWN (-), Recirculation/Fresh, Fr. DEF and Rr. DEF switches are located on the steering pad switch.

The resistance of the steering pad switch changes in accordance with switch operation. The air conditioner amplifier assembly outputs voltage to the steering pad switch and reads voltage changes according to the resistance changes with switch operation.

Wiring Diagram:






Step 1:




Step 2:




Step 3 - 4:




Step 5:




Step 6:




INSPECTION PROCEDURE