|
STEP
|
INSPECTION
|
ACTION
|
|
1
|
INSPECT REAR A/C UNIT'S REAR AIRFLOW MODE ACTUATOR
• Remove rear A/C unit's rear airflow mode actuator.
• Inspect rear A/C unit's airflow mode lever and crank.
-
- Is there grease on lever and crank?
-
- Are lever and crank securely in their proper positions?
• Are above items all okay?
|
Yes
|
Go to next step.
|
|
No
|
Apply grease or install lever and crank securely in their proper positions, then go to Step 9.
|
|
2
|
VERIFY WHETHER MALFUNCTION IS IN REAR AIRFLOW MODE ACTUATOR SYSTEM OR REAR A/C UNIT'S AIRFLOW MODE DOOR
• Turn ignition switch to ON position.
• Set rear main fan switch at third position.
• Is each rear airflow mode and air mix (VENT, BI-LEVEL and HEAT) accessed smoothly when airflow mode crank is operated by hand?
|
Yes
|
Go to next step.
|
|
No
|
Go to next Step 7.
|
|
*3
|
INSPECT WIRING HARNESS BETWEEN FUSE BLOCK AND REAR AIRFLOW MODE ACTUATOR FOR CONTINUITY
• Test voltage at rear airflow mode actuator terminal F (motor drive).
• Is voltage approximately B+?
|
Yes
|
Go to next step.
|
|
No
|
Repair wiring harness between fuse block and rear airflow mode actuator, then go to Step 9.
|
|
4
|
INSPECT REAR AIRFLOW MODE ACTUATOR
• Inspect rear airflow mode actuator.
• Is it okay?
|
Yes
|
Go to next step.
|
|
No
|
Replace rear airflow mode actuator, then go to Step 9.
|
|
*5
|
INSPECT WIRING HARNESS BETWEEN REAR CLIMATE CONTROL UNIT AND REAR AIRFLOW MODE ACTUATOR FOR CONTINUITY
• Turn ignition switch to LOCK position.
• Disconnect rear climate control unit connector and rear airflow mode actuator connector.
• Inspect for continuity between the following terminals.
-
- Terminal D (rear climate control unit)-Terminal G (rear airflow mode actuator)
-
- Terminal I (rear climate control unit)-Terminal A (rear airflow mode actuator)
-
- Terminal K (rear climate control unit)-Terminal B (rear airflow mode actuator)
-
- Terminal M (rear climate control unit)-Terminal C (rear airflow mode actuator)
-
- Terminal O (rear climate control unit)-Terminal F (rear airflow mode actuator)
• Is there continuity?
|
Yes
|
Go to next step.
|
|
No
|
Repair wiring harness between rear climate control unit and rear airflow mode actuator, then go to Step 9.
|
|
*6
|
INSPECT WIRING HARNESS BETWEEN REAR CLIMATE CONTROL UNIT AND REAR AIRFLOW MODE ACTUATOR FOR SHORT TO GROUND
• Inspect for no continuity between the following terminals and ground.
-
- Terminal D (rear climate control unit)-Terminal G (rear airflow mode actuator)
-
- Terminal I (rear climate control unit)-Terminal A (rear airflow mode actuator)
-
- Terminal K (rear climate control unit)-Terminal B (rear airflow mode actuator)
-
- Terminal M (rear climate control unit)-Terminal C (rear airflow mode actuator)
-
- Terminal O (rear climate control unit)-Terminal F (rear airflow mode actuator)
• Is there no continuity?
|
Yes
|
Go to next step.
|
|
No
|
Repair wiring harness between rear climate control unit and rear airflow mode actuator, go to Step 9.
|
|
7
|
INSPECT REAR A/C UNIT
• Is there any foreign material or obstructions in rear A/C unit's airflow mode door?
|
Yes
|
Remove obstruction, then go to Step 9.
|
|
No
|
Go to next step.
|
|
8
|
INSPECT REAR A/C UNIT'S AIRFLOW MODE DOOR
• Inspect rear A/C unit's airflow mode door as follows.
-
- Is airflow mode door free of cracks and damage?
-
- Is airflow mode door securely and properly installed?
• Are above items okay?
|
Yes
|
Replace rear climate control unit, then go to next step.
|
|
No
|
Replace airflow mode door or install airflow mode door securely in proper position, then go to next step.
|
|
9
|
VERIFY THAT MALFUNCTION SYMPTOM OCCURS AFTER REPAIR
• Does airflow mode change?
|
Yes
|
Troubleshooting completed. Explain repairs to customer.
|
|
No
|
Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.
|