FixVault

Ignition Switch:

WARNING: This page is about a different car, the 2003 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.

This system uses the multiplex communication system, so check diagnosis system of the multiplex communication system before you proceed with troubleshooting.

IGNITION SWITCH TROUBLE SYMPTOMS REFERENCE

Symptom Suspect Area See Section
Ignition switch is not set to each position.
  1. Ignition switch
  2. Power source circuit

 
  1. ADJUSTMENT
  2. ENGINE ROOM JUNCTION BLOCK