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 voltage between terminal EXI2 of skid control ECU and body ground.
PREPARATION:

Remove the skid control ECU with connectors still connected.

CHECK:
1. Turn the ignition switch ON.
2. Measure voltage between terminal EXI2 of the skid control ECU and body ground when the transfer is in the L4 position.
  OK:
  
  Voltage: 10 to 14 V
  
  Fig 1: Measuring Voltage Between Terminal EXI2 Of Skid Control ECU & Body Ground
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Proceed to next circuit inspection shown in PROBLEM SYMPTOMS TABLE .
2. NG: Go to next step.
Check transfer L4 position switch (See INSPECTION ).
1. NG: Replace transfer L4 position switch.
2. OK: Go to next step.
Check for open or short circuit in harness and connector between transfer L4 position switch and skid control ECU (See HOW TO USE THE DIAGNOSTIC TABLE AND INSPECTION ).
1. NG: Repair or replace harness or connector.
2. OK: Go to next step.
Check for open or short circuit in harness and connector between skid control ECU and ECM (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.