Diagnosis Procedure

ENCODER


REAR LH : Description

Detects condition of the front power window motor LH operation and transmits to main power window and door lock/unlock switch as pulse signal.




ENCODER


REAR LH : Diagnosis Procedure

Regarding Wiring Diagram information, Power Window Main Switch.
1. CHECK ENCODER SIGNAL





1. Turn ignition switch ON.
2. Check the signal between rear power window control unit LH connector D209 terminal 4 and ground with oscilloscope.





Is the inspection result normal?
YES - GO TO 2
NO - Replace rear power window control unit LH.
2. CHECK HARNESS CONTINUITY





1. Turn ignition switch OFF.
2. Disconnect rear power window control unit LH and rear power window motor LH.
3. Check continuity between rear power window control unit LH or
RH connector D209 terminal 4 and rear power window motor LH connector D204 terminal 3.

4 - 3 : Continuity should exist.

Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace harness.
3. CHECK REAR POWER WINDOW MOTOR LH POWER SUPPLY





1. Turn ignition switch OFF.
2. Disconnect rear power window motor LH or RH.
3. Turn ignition switch ON.
4. Check voltage between rear power window motor LH connector
D204 terminal 4 and ground.

4 - Ground : Approx. 10V

Is the inspection result normal?
YES - GO TO 5
NO - GO TO 4
4. CHECK HARNESS CONTINUITY





1. Turn ignition switch OFF.
2. Disconnect rear power window motor LH and rear power window control unit LH.
3. Check continuity between rear power window motor LH connector D204 (B) terminal 4 and rear power window control unit LH connector D209 (A) terminal 5.

4 - 5 : Continuity should exist.

Is the inspection result normal?
YES - Replace rear power window switch LH. PWC-
119, "Removal and Installation".
NO - Repair or replace harness.
5. CHECK ENCODER GROUND





1. Disconnect rear power window motor LH.
2. Check continuity between rear power window motor LH connector D204 terminal 6 and ground.

6 - Ground : Continuity should exist.

Is the inspection result normal?
YES - GO TO 7
NO - GO TO 6
6. CHECK ENCODER GROUND CIRCUIT





1. Disconnect rear power window control unit LH.
2. Check continuity between rear power window motor LH connector D204 terminal 6 and rear power window control unit LH connector D209 terminal 3.

6 - 3 : Continuity should exist.

Is the inspection result normal?
YES - Replace rear power window control unit LH.
NO - Repair or replace harness.
7. CHECK REAR POWER WINDOW MOTOR LH LIMIT SWITCH SIGNAL





1. Turn ignition switch ON.
2. Check voltage between rear power window control unit LH connector and ground.





Is the inspection result normal?
YES - Limit switch circuit is OK.
NO - GO TO 8
8. CHECK REAR POWER WINDOW SWITCH LH OUTPUT SIGNAL





1. Turn ignition switch ON.
2. Check voltage between rear power window control unit LH harness connector D209 terminal 2 and ground.

2 - Ground : Approx. 5V

Is the inspection result normal?
YES - GO TO 9
NO - Replace rear power window control unit LH.
9. CHECK HARNESS CONTINUITY





1. Turn ignition switch OFF.
2. Disconnect rear power window control unit LH.
3. Check continuity between rear power window control unit LH connector D209 terminal 2 and rear power window motor LH connector D204 terminal 5.

2 - 5 : Continuity should exist.

Is the inspection result normal?
YES - Replace rear power window motor LH. Service and Repair.
NO - Repair or replace harness.