SWITCH/DIAL OPERATION DOES NOT RESPOND (REAR CLIMATE CONTROL UNIT) [FULL-AUTO AIR CONDITIONER]

id0703c1006700

DESCRIPTION	•  Specific switch operation of rear climate control unit does not respond
POSSIBLE CAUSE	•  Rear climate control unit malfunction ―  MODE switch ―  Temperature control switch ―  AUTO switch ―  OFF switch •  Airflow volume control switch system malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY MALFUNCTION DURING EACH SWITCH OPERATION •  Do the related parts operate according to the switch operation of the rear climate control unit?	Yes	Go to Step 5.
		No	If specific switch operation does not respond •  Go to the next step. If all switch operations do not respond •  Go to the following malfunction symptom item. (See ALL SWITCH/DIAL OPERATION DOES NOT RESPOND (REAR CLIMATE CONTROL UNIT) [FULL-AUTO AIR CONDITIONER].)
2	PERFORM CLIMATE CONTROL UNIT DTC INSPECTION •  Perform the climate control unit DTC inspection using the M-MDS. (See DTC DISPLAY [CLIMATE CONTROL UNIT (FULL-AUTO AIR CONDITIONER)].) •  Are any DTCs displayed?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [CLIMATE CONTROL UNIT (FULL-AUTO AIR CONDITIONER)].)
		No	Go to the next step.
3	VERIFY MALFUNCTIONING SWITCH/DIAL •  Is any one of the following rear climate control unit switches the one which does not respond to being operated? ―  MODE switch ―  Temperature control switch ―  AUTO switch ―  OFF switch	Yes	Replace the rear climate control unit, then go to Step 5. (See REAR CLIMATE CONTROL UNIT REMOVAL/INSTALLATION.)
		No	Go to the next step.
4	DETERMINE IF MALFUNCTION IS CAUSED BY REAR BLOWER MOTOR CIRCUIT MALFUNCTION OR REAR CLIMATE CONTROL UNIT MALFUNCTION •  Is the airflow volume setting displayed normally in the display panel after operating the rear climate control unit airflow volume control switch?	Yes	Go to the following malfunction symptom item. (See AMOUNT OF AIR BLOWN FROM REAR VENTS DOES NOT CHANGE [FULL-AUTO AIR CONDITIONER].)
		No	Replace the rear climate control unit, then go to the next step. (See REAR CLIMATE CONTROL UNIT REMOVAL/INSTALLATION.)
5	VERIFY THAT MALFUNCTION SYMPTOM DOES NOT RECUR AFTER REPAIR •  Do the related parts operate according to the switch operation of the rear climate control unit?	Yes	Troubleshooting completed. Explain repairs to customer.
		No	Recheck malfunction symptoms, then repeat from Step 1 if the malfunction recurs.