Tundra 4WD V8-4.7L (2UZ-FE) (2003)
Ignition Switch: Component Tests and General Diagnostics
INSPECTION
1. INSPECT IGNITION SWITCH CONTINUITY
If continuity is not as specified, replace the switch.
2. INSPECT KEY UNLOCK WARNING SWITCH CONTINUITY
If continuity is not as specified, replace the switch.
3. Key unlock warning system:
INSPECT COMBINATION METER OPERATION
a. Disconnect the connector from the combination meter.
b. Ground terminal 1 and 10 on the wire harness side connector.