Code No. C1632: Engine timeout


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

OPERATION


4WD-ECU communicates with the engine-ECU via the CAN bus lines.

DIAGNOSIS CODE SET CONDITIONS


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

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics.
Use M.U.T.-III to perform the CAN bus diagnosis.

Q. Is the check result normal?
Go to Step 2
Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting ). After repairing the CAN bus line, go to Step 2.

STEP 2. M.U.T.-III other system diagnosis code.
Check the engine diagnosis code (Refer to GROUP 13A -Troubleshooting <4B1>, GROUP 13B -Troubleshooting <6B3>).

Q. Is the diagnosis code stored?
Perform the relevant troubleshooting.
Go to Step 3

STEP 3. Check whether the diagnosis code is stored again.

Q. Is diagnosis code No.C1632 stored?
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 stored again.

Q. Is diagnosis code No.C1632 stored?
Return to Step 1.
This diagnosis is complete.