Code No.C1610: 4WD Actuator Power Supply Relay


OPERATION


A relay is incorporated in 4WD-ECU, and the power is supplied to the actuator via this relay.

DIAGNOSIS CODE SET CONDITIONS


This diagnosis code is set when the abnormality below is detected:

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

STEP 1. Check the wiring harness between electronic control coupling solenoid connector and 4WD-ECU connector terminal SOL+, SOL-.
Check the power supply or earth line for short circuit.

Q. Is the check result normal?
Go to Step 2.
Repair the defective connector or the wiring harness.

STEP 2. Check of the electronic control coupling solenoid
Refer to .

Q. Is the check result normal?
Go to Step 3.
Replace the electronic control coupling (Refer to ).

STEP 3. Check whether the diagnosis code is reset.

Q. Is diagnosis code No.C1610 set?
Replace the 4WD-ECU (Refer to ). Then go to Step 4.
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).

STEP 4. Check whether the diagnosis code is reset.

Q. Is diagnosis code No.C1610 set?
Return to Step 1.
This diagnosis is complete.