4WD Warning Light does not Come ON: Procedure

WARNING: This page is about a different variant/trim than selected.

CHECK CAN COMMUNICATION SYSTEM

Check if the CAN communication system DTC is output.

Result

Result	Proceed to
DTC is not output	A
DTC is output	B

HINT:

When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.

B → See step 3

A: Go to next step

INSPECT 4WD WARNING LIGHT
1. Disconnect the 4WD control ECU connector.
  
  Fig 1: Inspecting 4WD Control ECU Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Turn the ignition switch to ON.
3. Check that the 4WD warning light comes on.
  
  Fig 2: Checking 4WD Warning Light Comes On
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK
  
  4WD warning light comes on.
NG → See step 5

OK → See step 4
REPAIR CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING
REPLACE 4WD CONTROL ECU. Refer to REMOVAL
REPLACE COMBINATION METER. Refer to REMOVAL