Symptom Related Diagnostic Procedures

AIR TEMPERATURE CONTROL INOPERATIVE - PASSENGER

Air Temperature Control Inoperative - Passenger:

Air Temperature Control Inoperative - Passenger:

CIRCUIT DESCRIPTION

The heater and A/C programmer receives the requested temperature offset on CKT 831 (DK BLU/WHT) from the passenger climate control. The heater and A/C programmer controls the on and off status of the passenger climate control on CKT 1336 (DK BLU).

TEST DESCRIPTION

The numbers below refer to step numbers on the diagnostic table.
1. Checks the temperature control (full hot) of the Passenger Climate Control. Also verifies the condition of CKT 831.
2. Checks the temperature control (full cold) of the Passenger Temperature Control. Also verifies the condition to CKT 831.
3. Checks the ON/OFF switch of the Passenger Temperature Control. Also verifies the condition of CKT 1336.
4. Checks the ON/OFF Switch of the Heater and A/C Programmer. Also verifies the condition of CKT 1336.
7. Checks terminal condition of the Heater and A/C Programmer.