Rear Air Control (Rear) Diagnosis Procedure #4

BLOWER MOTOR CONTROL SYSTEM

Rear Air Control (Rear) Diagnosis Procedure #4

Regarding Wiring Diagram information, Automatic Air Conditioning.

TROUBLE DIAGNOSIS PROCEDURE


1. CHECK REAR AIR CONTROL (REAR) REAR AUX BLOWER POT REFERENCE VOLTAGE

1.Turn ignition switch OFF.






2.Disconnect rear air control (rear) harness connector.
3.Turn ignition switch ON.
4.Check voltage between rear air control (rear) harness connector
M208 terminal 6 and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- GO TO 3.

2. CHECK REAR AIR CONTROL (REAR) GROUND CIRCUIT






1.Turn ignition switch OFF.
2.Check continuity between rear air control (rear) harness connector M208 terminal 1 and ground.
Continuity should exist.
Is the inspection result normal?
YES- Replace rear air control (rear). Service and Repair.
NO- Repair harness or connector.

3. CHECK REAR AIR CONTROL (REAR) REAR AUX BLOWER POT FOR SHORT






1.Turn ignition switch OFF.
2.Check continuity between rear air control (rear) harness connector M208 terminal 6 and ground.
Continuity should not exist.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair harness or connector.

4. CHECK REAR AIR CONTROL (REAR) REAR AUX BLOWER POT BETWEEN A/C AUTO AMP. AND REAR

AIR CONTROL REAR





1.Disconnect A/C auto amp. harness connector.
2.Check continuity between A/C auto amp. harness connector
M50 (A) terminal 52 and rear air control (rear) harness connector M208 (B) terminal 6.
Continuity should exist.
Is the inspection result normal?
YES- Replace A/C auto amp. Service and Repair.
NO- Repair harness or connector.