Ignition Switch Test
WARNING: This page is about a different car, the 2004 Lexus LS 430, 2003 Lexus LS 430, and 2002 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
Using ohmmeter, measure resistance between specified terminals. For resistance specifications, see IGNITION SWITCH CONNECTOR RESISTANCE . If the resistance is not as specified, replace switch.
IGNITION SWITCH CONNECTOR RESISTANCE
| Switch Position | Terminal No. | Resistance (Ohm) |
|---|---|---|
| LOCK | All | 10k or higher |
| ACC | 1 & 3 | Below 1 |
| ON | 1 & 2, 1 & 3, 5 & 6 | Below 1 |
| START | 1 & 2, 4 & 5, 5 & 6 | Below 1 |