Inspection Procedure
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
- Check pattern select switch.
PREPARATION:
Disconnect the pattern select switch connector.
CHECK:
Check continuity between each terminal of pattern select switch connector when the select switch is set to PWR, NORM or SNOW positions.
OK:
SPECIFIED CONDITIONSwitch condition Tester connection Specified condition PWR 1 - 6 Continuity NORM 1 - 3, 1 - 6 No continuity SNOW 1 - 3 Continuity If the continuity is not as specified, replace the switch.
- NG : Replace pattern select switch.
- OK : Go to next step.
- Check harness and connector between pattern select switch and passenger side J/B ECU, pattern select switch and body ground (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE
).
- NG : Repair or replace the harness or connector.
- OK : Proceed to next circuit inspection shown on problem symptoms table (See PROBLEM SYMPTOMS TABLE )