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.

Check that the ECU connectors are securely connected to the ECU.
1. NO: Connect the connector to the ECU.
2. YES: Go to next step.
Is DTC output for VSC?
Check the DTC PRE-CHECK .
1. YES: Repair circuit indicated by the output code.
2. NO: Go to next step.
Does VSC TRAC warning light go off?
1. YES: Check for open or short circuit in harness and connector between ECU-IG fuse and ECU (See HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION ).
2. NO: Go to next step.
Check battery positive voltage.
PREPARATION:

Start the engine.

CHECK:

Check the battery positive voltage.

OK:

Voltage: 10 to 16V
1. NG: Check and repair the charging system.
2. OK: Go to next step.
Check operation of the VSC TRAC warning light.
In case of using the hand-held tester:

PREPARATION:
1. Connect the hand-held tester to the DLC3.
2. Turn the ignition switch ON and push the hand-held tester main switch ON.
3. Select the ACTIVE TEST mode on the hand-held tester.
CHECK:

Check that "ON" and "OFF" of the VSC TRAC warning light can be shown on the combination meter on the hand-held tester.

In case of not using the hand-held tester:

PREPARATION:
1. Turn the ignition switch OFF.
2. Disconnect the connector from the skid control ECU.
3. Turn the ignition switch ON.
  CHECK:
  
  Check that the VSC TRAC warning light goes off.
1. NG: Check and replace combination meter (See PROBLEM SYMPTOMS TABLE ).
2. OK: Go to next step.
Check for short circuit in harness and connector between combination meter and skid control ECU, combination meter and DLC1 (See HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION ).
1. NG: Repair or replace harness or connector.
2. OK: Check and replace skid control ECU.