Code No. P1796: Idle-N control function failure



DIAGNOSIS CODE SET CONDITIONS

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 line (Refer to GROUP 54C - Troubleshooting ).

STEP 2. Check the diagnosis code.


Check the ASC diagnosis code. (Refer to GROUP 35C - Troubleshooting ).

Q. Is the diagnosis code set?

Check and repair the relevant diagnosis code system.
Go to Step 3.

STEP 3. Perform the troubleshooting for diagnosis code No. P0753: low clutch linear solenoid valve and diagnosis code No. P0731: 1st gear incorrect ratio.


Check whether the diagnosis code is reset.

Q. Is diagnosis code No.P1796 set?

Replace the A/T-ECU.
This diagnosis is complete.