Test R: The Panel/Floor Control is Inoperative/Does Not Operate Correctly Using the Front/Rear Auxiliary Climate Controls
PINPOINT TEST R: THE PANEL/FLOOR CONTROL IS INOPERATIVE/DOES NOT OPERATE CORRECTLY USING THE FRONT/REAR AUXILIARY CLIMATE CONTROLSR1-R2:
R3-R4:
R5-R7:
R7-R9:
R9-R11:
R11-R12:
R12-R13:
R14-R15:
R15-R17:
R17-R18:
Normal Operation
Under normal operation, to rotate the mode door actuator clockwise, the EATC module supplies voltage to the auxiliary panel/floor door actuator through the circuit 1380 (TN/YE), and supplies ground through circuit 1379 (PK/LB). To rotate the auxiliary panel/floor door actuator counterclockwise, the EATC module reverses the voltage and ground circuits.
The auxiliary panel/floor door actuator feedback resistor is supplied a ground from the EATC module through circuit 1377 (TN/LG) and a 5-volt reference voltage on circuit 1381 (WH/LB). The EATC module reads the voltage on the auxiliary panel/floor door actuator feedback circuit 1382 (BK/OG) to determine the auxiliary panel/floor door actuator position by the position of the actuator feedback resistor wiper arm.
Possible Causes
- An open, short to voltage, ground or together in circuits 1380 (TN/YE), 1379 (PK/LB), 1377 (TN/LG), 1381 (WH/LB) and 1382 (BK/OG)
- Auxiliary panel/floor door actuator
- EATC module
- Stuck or bound linkage or door