4WD Warning Light does not Come ON: Procedure

WARNING: This page is about a different car, the 2011 Toyota Matrix. However, it is still accessible from the selected car via links, so may be relevant.

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