Ignition Switch Test (2004)
WARNING: This page is about a different car, the 2004 Lexus SC 430, 2003 Lexus SC 430, and 2002 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
Using ohmmeter, measure resistance between specified terminals. For terminal identification, see Fig 1. For resistance specifications, see IGNITION SWITCH CONNECTOR RESISTANCE . If the resistance is not as specified, replace switch.
IGNITION SWITCH CONNECTOR RESISTANCE
| Switch Condition | Terminal No. | Resistance (Ohm) |
|---|---|---|
| ON | 4 & 5 | Below 1 |
| START | 4 & 5 | 10,000 or more |