Inspection Procedure

WARNING: This page is about a different car, the 2005 Lexus GS 430 and 2005 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

Check if the screen is dimmed at night. (With the light control switch ON), do all screens except the navigation screen appear in Night Mode?)
1. NG: Check the light control switch.
2. OK: Go to next step.
Check the multi display.
CHECK:

Check terminal TAIL.

OK:

TAIL: See " MULTI DISPLAY " of "TERMINAL OF ECU".
1. NG: Replace or repair wire harness.
2. OK: Go to next step.
Check the multi display.
PREPARATION:

Disconnect the multi display connector.

CHECK:

Check voltage terminals +B.

OK:

+B: 10 - 14 V

CHECK:

Check voltage terminal ACC when turn ignition switch ACC or ON position.

OK:

ACC: 10 - 14 V

CHECK:

Check continuity terminal GND.

OK:

GND: Continuity
1. NG: Replace or repair wire harness.
2. OK: Replace the multi display.