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 operation of the stop light switch.
CHECK:

Check that the stop light lights up when the brake pedal is depressed and goes OFF when the brake pedal is released.
1. OK: Go to step 3 .
2. NG: Go to next step.
Check stop light circuit (See INSPECTION ).
1. NG: Check stop light bulb and repair or replace stop light circuit.
2. OK: Go to next step.
Check voltage between terminal STP of skid control ECU and body ground.
PREPARATION:

Remove the skid control ECU with connectors still connected.

CHECK:

Measure voltage between terminal STP of the skid control ECU and body ground when the brake pedal is depressed.

OK:

Voltage: 10 to 14 V

Fig 1: Measuring Voltage Between Terminal STP Of Skid Control ECU & Body Ground
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1. OK: Proceed to next circuit inspection shown in problem symptoms table (See HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION ).
2. NG: Go to next step.
Check for open circuit in harness and connector between skid control ECU and stop light switch (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.