POWER WINDOW CONTROL SYSTEM > Power Windows do not Operate at All

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DESCRIPTION

If all of the power windows do not operate, the power window regulator master switch may have no power or may be malfunctioning.

WIRING DIAGRAM


B107970E01


INSPECTION PROCEDURE

1.INSPECT FUSE (ECU-IG & GAUGE)

  1. Remove the ECU-IG & GAUGE fuse from the instrument panel junction block.

  1. Measure the resistance of the fuse.

    Standard resistance:
    Below 1 Ω



NG
REPLACE FUSE
OK


2.INSPECT RELAY (Marking: IG1)
B112776

  1. Remove the IG1 relay from the No. 3 relay block.

  1. Measure the resistance of the relay.

    Standard resistance:
    Tester Connection
    		Specified Condition
    3 - 5
    		10 kΩ or higher
    3 - 5
    		Below 1 Ω
    (when battery voltage is applied to terminals 1 and 2)



NG
REPLACE RELAY
OK


3.CHECK WIRE HARNESS (MASTER SWITCH - BATTERY AND BODY GROUND)

B111938E04

  1. LHD:

    1. Disconnect the P4 master switch connector.

    2. Measure the voltage of the wire harness side connectors.

      Standard voltage:
      Single cab, Extra cab
      Tester Connection
      		Condition
      		Specified Condition
      P4-9 (B) - Body ground
      		Ignition switch ON
      		10 to 14 V
      Double cab
      Tester Connection
      		Condition
      		Specified Condition
      P4-6 (B) - Body ground
      		Ignition switch ON
      		10 to 14 V

    3. Measure the resistance of the wire harness side connectors.

      Standard resistance:
      Single cab, Extra cab
      Tester Connection
      		Specified Condition
      P4-1 (E) - Body ground
      		Below 1 Ω
      Double cab
      Tester Connection
      		Specified Condition
      P4-3 (E) - Body ground
      		Below 1 Ω


B111938E05

  1. RHD:

    1. Disconnect the P4 master switch connector.

    2. Measure the voltage of the wire harness side connectors.

      Standard voltage:
      Single cab, Extra cab
      Tester Connection
      		Condition
      		Specified Condition
      P4-9 (B) - Body ground
      		Ignition switch ON
      		10 to 14 V
      Double cab
      Tester Connection
      		Condition
      		Specified Condition
      P4-6 (B) - Body ground
      		Ignition switch ON
      		10 to 14 V

    3. Measure the resistance of the wire harness side connectors.

      Standard resistance:
      Single cab, Extra cab
      Tester Connection
      		Specified Condition
      P4-10 (E) - Body ground
      		Below 1 Ω
      Double cab
      Tester Connection
      		Specified Condition
      P4-3 (E) - Body ground
      		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


4.INSPECT IGNITION SWITCH ASSEMBLY
A087913E01

  1. Remove the ignition switch.

  1. Measure the resistance of the switch.

    Standard resistance:
    Tester Connection
    		Switch Position
    		Specified Condition
    1 (IG1) - 4 (AM1)
    		OFF
    		10 kΩ or higher
    1 (IG1) - 4 (AM1)
    		ON
    		Below 1 Ω



NG
REPLACE IGNITION SWITCH ASSEMBLY
OK

REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY