C1610

DTC C1610: AWC Actuator Power Supply Electronic Relay Malfunction

CAUTION:

- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.

OPERATION

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

DTC SET CONDITIONS

When the actuator power supply relay in AWC-ECU is seized, the code is set.

PROBABLE CAUSES

- Malfunction of AWC-ECU

DIAGNOSTIC PROCEDURE

STEP 1. Scan tool CAN bus diagnostics

Using scan tool MB991958, diagnose the CAN bus lines.

Q. Is the check result normal?

YES Go to Step 3.
NO Repair the CAN bus lines. CAN Bus Diagnostics Chart.) After repairing the CAN bus line, go to Step 2.
STEP 2. Check whether the DTC is reset.

Q. Is DTC No. C1610 set?

YES Replace the AWC-ECU.(Refer to Active Center Differential (ACD).)
NO This diagnosis is complete.
STEP 3. Check whether the DTC is reset.

Q. Is DTC No. C1610 set?

YES Replace the AWC-ECU.(Refer to Active Center Differential (ACD).)
NO Intermittent malfunction. How to Cope With Intermittent Malfunctions.)