Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

Do the warning lights other than TRAC indicator light come on?
1. YES: Go to step 3 .
2. NO: Go to next step.

Check IG1 No. 1 relay.

PREPARATION:

Remove the IG1 No. 1 relay from the engine room J/B.

CHECK:

Check continuity between the IG1 No. 1 relay terminals listed in TERMINALS NO AND CONTINUITY .

OK:

TERMINALS NO AND CONTINUITY

Terminals 3 and 4	Continuity
Terminals 1 and 2	Open

CHECK:

Apply battery positive voltage between terminals 3 and 4.
Check continuity between terminals.
OK:
TERMINALS NO AND CONTINUITY

Terminals 1 and 2 Continuity

Fig 1: Checking Continuity Between IG1 No. 1 Relay Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Replace IG1 No. 1 relay.
OK: Check for open circuit in harness and connector between IG1 No. 1 relay and combination meter (See HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION ).

Check TRAC indicator light.
Check that the open circuit in the combination meter circuit (See CIRCUIT ).
1. NG: Repair TRAC indicator light bulb or combination meter assembly.
2. OK: Go to next step.
Check for short circuit in harness and connector between TRAC indicator light and skid control ECU (See HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION ).
1. NG: Repair or replace harness or connector.
2. OK: Check and repair skid control ECU.