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Master Switch Circuit

Disconnect master switch harness connector. Using DVOM, check circuit values at master switch harness connector. See Fig 1. Ensure circuit values are as specified. See MASTER SWITCH CIRCUIT VALUES  table. If circuit values are not as specified, repair as necessary. See WIRING DIAGRAMS .

MASTER SWITCH CIRCUIT VALUES

Tester Connection Condition Circuit Value
1 & Ground Constant Continuity
7 & Ground Ignition Switch In LOCK Or ACC Position (1) No Voltage
7 & Ground Ignition Switch In ON Position Battery Voltage
(1) After 60 seconds from ignition OFF, or when vehicle door is opened after ignition OFF.
Fig 1: Identifying Master Switch Harness Connector Terminals
G99D51501Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002