Inspection Procedure

CHECK DTC

Check for DTCs.
Connect Techstream to the DLC3.
By following the tester screen display, check whether any DTCs are output.

Result

RESULT CHART

Display	Proceed to
No output	A
DTC output	B

B: GO TO DIAGNOSTIC TROUBLE CODE CHART

A: GO TO NEXT STEP

PERFORM ACTIVE TEST USING TECHSTREAM (POWER WINDOW UP/DOWN)

Perform the Active Test, using Techstream to generate a control command, and then check the power window operation.

D-Door Motor

ACTIVE TEST CHART

Tester Display	Test Part	Control Range	Diagnostic Note
P/W Up / Down	Power Window	UP/OFF	-
P/W Up / Down	Power Window	DOWN / OFF	-

OK:

Driver side power window operates normally.

CAUTION: Be careful to avoid injuries as this test causes vehicle parts to move.

NG: Go to 6

OK: GO TO NEXT STEP

READ VALUE USING TECHSTREAM (MASTER SWITCH)

Check the Data list for proper functioning of the power window master switch.

D-Door Motor

DATA LIST

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
D Door P/W Auto SW	Driver side power window AUTO switch signal / ON or OFF	ON: Driver side power window AUTO switch operates OFF: Driver side power window AUTO switch does not operate	-
D Door P/W Up SW	Driver side power window UP switch signal / ON or OFF	ON: Driver side power window UP switch operates OFF: Driver side power window UP switch does not operate	-
D Door P/W Down SW	Driver side power window DOWN switch signal / ON or OFF	ON: Driver side power window DOWN switch operates OFF: Driver side power window DOWN switch does not operate	-

OK:

ON (switch operates) appears on screen.

OK: REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side)

NG: GO TO NEXT STEP

CHECK WIRE HARNESS (SWITCH INPUT POWER SUPPLY)

Disconnect the H2 switch connector.
Turn the ignition switch ON.
Measure the voltage of the wire harness side connector.

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
H2-6 (B) - H2-1 (E)	10 to 14V

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

Fig 1: Identifying H2 Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: GO TO NEXT STEP

CHECK WIRE HARNESS (MASTER SWITCH - REGULATOR MOTOR)

Disconnect the H2 switch connector.
Disconnect the H4 motor connector.

Measure the resistance of the wire harness side connectors.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
H2-8 (U) - H4-10 (UP)	Below 1 Ω
H2-5 (D) - H4-7 (DOWN)	Below 1 Ω
H2-4 (A) - H4-4 (AUTO)	Below 1 Ω
H2-3 (LEO) - H4-5 (LED)	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

Fig 2: Identifying H2 Switch Connector And H4 Motor Connector Terminals

OK: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

INSPECT FUSE (D FR DOOR)
1. Remove the D FR DOOR fuse from the instrument panel junction block.
  Standard resistance:
  
  Below 1 Ω
  
  NG: REPLACE FUSE (D FR DOOR)
  
  OK: GO TO NEXT STEP

CHECK WIRE HARNESS (MOTOR INPUT POWER SUPPLY)

Fig 3: Identifying H4 Motor Connector Terminals

Disconnect the H4 motor connector.

Measure the voltage of the wire harness side connector.

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
H4-2 (B) - H4-1 (GND)	10 to 14 V

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side)