Diagnosis Procedure - Encoder Circuit Check

1. Turn ignition switch ON.
2. Check signal between main power window and door lock/unlock switch connector D7 and ground with oscilloscope.

   Terminals			Signal (Reference value)
   (+)		(-)
   Main power window and door lock/unlock switch connector	Terminal
   D7	4	Ground	Refer to following signal
   	5

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Is the inspection result normal?

YES

Check intermittent incident. Refer to Intermittent Incident .

NO

GO TO 2.

1. Turn ignition switch ON.
2. Check voltage between front power window motor LH connector D9 and ground.

   Terminal			Voltage (Approx.)
   (+)		(-)
   Front power window motor LH connector	Terminal
   D9	2	Ground	10

Is the measurement value within the specification?

YES

GO TO 4.

NO

GO TO 3.

1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch and front power window motor LH.
3. Check continuity between main power window and door lock/unlock switch connector D7 and front power window motor LH connector D9.

   Main power window and door lock/unlock switch connector	Terminal	Front power window motor LH connector	Terminal	Continuity
   D7	14	D9	2	Yes

4. Check continuity between main power window and door lock/unlock switch connector D7 and ground.

   Main power window and door lock/unlock switch connector	Terminal	Ground	Continuity
   D7	14		No

Is the inspection result normal?

YES

Replace main power window and door lock/unlock switch. Refer to Removal and Installation . After that, refer to Special Repair Requirement .

NO

Repair or replace the harness or connectors.

1. Turn ignition switch OFF.
2. Disconnect front power window motor LH.
3. Check continuity between front power window motor LH connector D9 and ground.

   Front power window motor LH connector	Terminal	Ground	Continuity
   D9	4		Yes

Is the inspection result normal?

YES

GO TO 6.

NO

GO TO 5.

1. Disconnect main power window and door lock/unlock switch.
2. Check continuity between main power window and door lock/unlock switch connector D7 and front power window motor LH connector D9.

   Main power window and door lock/unlock switch connector	Terminal	Front power window motor LH connector	Terminal	Continuity
   D7	12	D9	4	Yes

Is the inspection result normal?

YES

Replace main power window and door lock/unlock switch. Refer to Removal and Installation . After that, refer to Special Repair Requirement .

NO

Repair or replace the harness or connectors.

1. Disconnect main power window and door lock/unlock switch.
2. Check continuity between main power window and door lock/unlock switch connector D7 and front power window motor LH connector D9.

   Main power window and door lock/unlock switch connector	Terminal	Front power window motor LH connector	Terminal	Continuity
   D7	5	D9	5	Yes
   	4		6

3. Check continuity between main power window and door lock/unlock switch connector D7 and ground.

   Main power window and door lock/unlock switch connector	Terminal	Ground	Continuity
   D7	5		No
   	4

Is the inspection result normal?

YES

Replace front power window motor LH. Refer to Removal and Installation - Front Regulator . After that, refer to Special Repair Requirement .

NO

Repair or replace the harness or connectors.