Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM000001BU7005X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: TRAC Indicator Light Circuit; 2007 MY LX470 [08/2006 -        ]

TRAC Indicator Light Circuit

DESCRIPTION

The TRAC indicator light blinks during TRAC operation.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.

CHECK WARNING LIGHT

(a) Check the warning lights other than the TRAC indicator light.

OK

GO TO STEP 3

NG

2.

INSPECT RELAY (Marking: IG1 NO. 2)

(a) Remove the IG1 NO. 2 relay from the cowl side junction block LH.

(b) Measure the resistance of the relay.

Standard resistance:

Tester Connection

Specified Condition

1 - 2

10 kΩ or higher

1 - 2

Below 1 Ω

(when battery voltage is applied to terminals 3 and 4
NG

REPLACE RELAY

OK

CHECK COMBINATION METER (COMBINATION METER CIRCUIT)

3.

CHECK TRAC INDICATOR LIGHT

(a) Check for open circuit in the combination meter circuit.

NG

REPLACE COMBINATION METER

OK

4.

CHECK WIRE HARNESS (SKID CONTROL ECU ASSEMBLY - TRAC INDICATOR LIGHT)
NG

REPAIR HARNESS AND CONNECTOR

OK

REPLACE SKID CONTROL ECU ASSEMBLY