C1632

Code No. C1632: Engine CAN Data (not received)

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

AWC-ECU communicates with the engine control module via the CAN bus lines.

DIAGNOSTIC TROUBLE CODE SET CONDITIONS

This diagnostic trouble code is set when the CAN signal of the engine control module cannot be received.

PROBABLE CAUSES

- Malfunction of the CAN bus line

- Damaged connectors (Engine control module)

- Malfunction of engine control module

- Malfunction of AWC-ECU

DIAGNOSTIC PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.

Use scan tool to perform the CAN bus diagnosis.

Q. Is the check result normal?

YES Go to Step 2.
NO Repair the CAN bus lines. CAN Bus Diagnostics Chart). After repairing the CAN bus line, go to Step 2.
STEP 2. M.U.T.-III diagnostic trouble code.

Check the engine diagnostic trouble code. Multiport Fuel Injection (MFI)).

Q. Is the diagnostic trouble code set?

YES Perform the relevant troubleshooting.
NO Go to Step 3.
STEP 3. Check whether the diagnostic trouble code is reset.

Q. Is diagnostic trouble code No.C1632 set?

YES Replace the AWC-ECU. (Refer to AWC-ECU Removal and Installation). Then go to Step 4.
NO Intermittent malfunction. How to Cope With Intermittent Malfunctions).
STEP 4. Check whether the diagnostic trouble code is reset.

Q. Is diagnostic trouble code No.C1632 set?

YES Return to Step 1.
NO This diagnosis is complete.