FixVault

Ignition Switch Circuit: Notes

Turn ignition on. Using DVOM, measure voltage by backprobing rear of ignition switch connector between the following terminals and ground with ignition switch in specified position. See appropriate IGNITION SWITCH CIRCUIT VOLTAGE table. See Fig 1 or Fig 2 . If battery voltage is not present at each terminal, repair wiring harness or replace components as necessary. If battery voltage is present at each terminal, check ignition switch. See IGNITION SWITCH  under COMPONENT TESTS.

Fig 1: Identifying Ignition Switch Connector Terminals (ES300, GS300, GS400, LS400, LX470 & RX300)
G97G04322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Identifying Ignition Switch/Key Unlock Warning Switch Connector Terminals (SC300 & SC400)
G99A50138Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002