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Land Cruiser

  1. Disconnect 12-pin connector from power window switch. Check for continuity or voltage on wire harness side. See POWER WINDOW SWITCH CIRCUIT TEST - CONNECTOR DISCONNECTED (LAND CRUISER)  table. See Fig 1. If circuit is not as specified, inspect circuits connected to other components.
  2. Connect power window switch. Check for continuity or voltage at back side of connector. See POWER WINDOW SWITCH CIRCUIT TEST - CONNECTOR CONNECTED (LAND CRUISER)  table. See Fig 1. If results are not as specified, inspect circuits connected to other components.
POWER WINDOW SWITCH CIRCUIT TEST - CONNECTOR DISCONNECTED (LAND CRUISER)

Connector Terminal No. To Ground Condition Result
9 Constant (Front Left Side Only) Continuity
10 Constant (Rear Left Side Only) Continuity
12 Constant Continuity
7 Constant battery voltage
8 Ignition Switch In LOCK Position No Voltage
8 Ignition Switch In ACC Or ON Position battery voltage
11 (1) Power Window Master Lock Switch Off battery voltage
11 (1) Power Window Master Lock Switch On No Voltage
(1) Ignition switch in ON position.
POWER WINDOW SWITCH CIRCUIT TEST - CONNECTOR CONNECTED (LAND CRUISER)

Connector Terminal No. To Ground Condition Result
2 Constant Continuity
8 (1) 2.5 Volts
1 (1) Master Switch OFF No Voltage
1 (1) Master Switch DOWN 9 Volts Or Greater
1 (1) Driver Door Glass Closed No Voltage
1 (1) Master Switch AUTO UP 9 Volts Or Greater
1 (1) Driver Door Glass Open No Voltage
3 Master Switch UP (Driver Door Glass Open) Less Than 1 Volt
3 Master Switch UP (Driver Door Glass Closed) 10-14 Volts
3 Master Switch OFF No Voltage
4 Power Window Operating Approximately 5.5 Volts
6 (1) Master Switch OFF No Voltage
6 (1) Master Switch DOWN 9 Volts Or Greater
6 (1) Driver Door Glass Closed No Voltage
6 (1) Master Switch AUTO DOWN 9 Volts Or Greater
6 (1) Driver Door Glass Open No Voltage
(1) Ignition switch in ON position.
Fig 1: Identifying Power Window Switch 12-Pin Harness Connector Terminals (Land Cruiser)
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