Diagnostic Procedure

DUAL A/C CONTROL DOES NOT OPERATE DIAGNOSTIC PROCEDURE

Step	Inspection	Results	Action
1	VERIFY DASH-ELECTRICAL SUPPLY UNIT DTCs Perform the DTC inspection for the dash-electrical supply unit. (See DTC INSPECTION .) Are any DTCs displayed?	Yes	Repair or replace the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [DASH_ESU] .)
1		No	Go to the next step.
2	INSPECT AIR MIX LINK PART Inspect the air mix link for the following items. (Refer to A/C UNIT DISASSEMBLY/ASSEMBLY in service information.) Is grease on link? Are links securely and properly installed? Are links free of obstructions and hindrances? Are the above items normal?	Yes	Go to the next step.
2		No	Repair or replace the malfunctioning location and perform the repair completion verification 1. (Refer to A/C UNIT DISASSEMBLY/ASSEMBLY in service information.)
3	INSPECT AIR MIX ACTUATOR Inspect the applicable part. (Refer to AIR MIX ACTUATOR INSPECTION [FULL-AUTO AIR CONDITIONER] , or AIR MIX ACTUATOR INSPECTION [MANUAL AIR CONDITIONER] in service information.) Is the part normal?	Yes	Go to the next step.
3		No	Repair or replace the malfunctioning location and perform the repair completion verification 1. (Refer to AIR MIX ACTUATOR REMOVAL [FULL-AUTO AIR CONDITIONER] , or AIR MIX ACTUATOR INSPECTION [MANUAL AIR CONDITIONER] in service information.) (Refer to AIR MIX ACTUATOR INSTALLATION [FULL-AUTO AIR CONDITIONER] , or AIR MIX ACTUATOR INSTALLATION [MANUAL AIR CONDITIONER] in service information.)
4	INSPECT AIR MIX DOOR Inspect the air mix door for the following items. (Refer to A/C UNIT REMOVAL/INSTALLATION in service information.) Is there clogging, cracked, or damage? Are links securely and properly installed? Are the above items normal?	Yes	Replace the climate control unit, then perform the repair completion verification 1. (Refer to CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER] , or CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER] in service information.)
4		No	Repair or replace the malfunctioning location and perform the repair completion verification 1. (Refer to A/C UNIT REMOVAL/INSTALLATION in service information.)
Repair completion verification 1	VERIFY IF MALFUNCTION CAUSE IS CORRECTED Install/connect the part removed/disconnected during the troubleshooting procedure. Can the temperatures for the driver-side and passenger-side be adjusted independently?	Yes	Troubleshooting completed. (Explain repair contents to customer.)
Repair completion verification 1		No	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See MALFUNCTION DIAGNOSIS FLOW [CONTROLLER AREA NETWORK (CAN)] .) If the CAN communication is normal, perform the diagnosis from Step 1.