Diagnosis Procedure

CHECK ENCODER SIGNAL

Turn ignition switch ON.

Check signal between front power window switch (passenger side) harness connector and ground with oscilloscope.

(+)		(-)	Signal (Reference value)
Front power window switch (passenger side)
Connector	Terminal
D21	12	Ground	Refer to following signal
	15

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Is the inspection result normal?

YES

Replace front power window switch (passenger side). Refer to POWER WINDOW MAIN SWITCH : Removal & Installation .

GO TO 2.

CHECK ENCODER SIGNAL CIRCUIT

Turn ignition switch OFF.
Disconnect front power window switch (passenger side) connector and front power window motor (passenger side) connector.

Check continuity between front power window switch (passenger side) harness connector and front power window motor (passenger side) harness connector.

Front power window switch (passenger side)		Front power window motor (passenger side)		Continuity
Connector	Terminal	Connector	Terminal
D21	12	D25	4	Existed
	15		6

Check continuity between front power window switch (passenger side) harness connector and ground.

Front power window switch (passenger side)		Ground	Continuity
Connector	Terminal
D21	12		Not existed
	15

Is the inspection result normal?

YES

GO TO 3.

Repair or replace harness.

CHECK ENCODER POWER SUPPLY CIRCUIT 1

Connect front power window switch (passenger side) connector.
Turn ignition switch ON.

Check voltage between front power window motor (passenger side) harness connector and ground.

(+)		(-)	Voltage (V)
Front power window motor (passenger side)
Connector	Terminal
D25	5	Ground	9 - 16

Is the inspection result normal?

YES

GO TO 5.

GO TO 4.

CHECK ENCODER POWER SUPPLY CIRCUIT 2

Turn ignition switch OFF.
Disconnect front power window switch (passenger side) connector.

Check continuity between front power window switch (passenger side) harness connector and front power window motor (passenger side) harness connector.

Front power window switch (passenger side)		Front power window motor (passenger side)		Continuity
Connector	Terminal	Connector	Terminal	Continuity
D21	4	D25	5	Existed

Check continuity between front power window switch (passenger side) harness connector and ground.

Front power window switch (passenger side)		Ground	Continuity
Connector	Terminal
D21	4		Not existed

Is the inspection result normal?

YES

Replace front power window switch (passenger side). Refer to POWER WINDOW MAIN SWITCH : Removal & Installation .

Repair or replace harness.

CHECK GROUND CIRCUIT 1

Turn ignition switch OFF.
Disconnect front power window switch (passenger side) connector.

Check continuity between front power window switch (passenger side) harness connector and front power window motor (passenger side) harness connector.

Front power window switch (passenger side)		Front power window motor (passenger side)		Continuity
Connector	Terminal	Connector	Terminal	Continuity
D21	3	D25	3	Existed

Is the inspection result normal?

YES

GO TO 6.

Repair or replace harness.

CHECK GROUND CIRCUIT 2

Connect front power window switch (passenger side) connector.

Check continuity between front power window switch (passenger side) connector and ground.

Front power window switch (passenger side)		Ground	Continuity
Connector	Terminal
D21	3		Existed

Is the inspection result normal?

YES

Replace front power window motor (passenger side). Refer to FRONT REGULATOR : Removal & Installation .

Replace front power window switch (passenger side). Refer to POWER WINDOW MAIN SWITCH : Removal & Installation .