Code No. C1626: 4WD Voltage Failure


OPERATION


The 4WD-ECU monitors the actuator power supply voltage.

DIAGNOSIS CODE SET CONDITION


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, earth line for short circuit (for short to the power supply).

Q. Is the check result normal?
Go to Step 2.
Repair the defective connector or the wiring harness. Then go to Step 4.

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 ). Then go to Step 4.

STEP 3. Check whether the diagnosis code is reset.

Q. Is diagnosis code No.C1626 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.C1626 set?
Return to Step 1.
This diagnosis is complete.