P1796

Code No. P1796: Idle neutral control malfunction

DIAGNOSTIC TROUBLE CODE SET CONDITIONS

- With the idle neutral control, the status that the "actual slip speed - target slip speed" is faster than 300 r/min continues for 10 seconds.

- 1.05 seconds after the TCM activation, the failure signal of longitudinal G-sensor is received.

PROBABLE CAUSES

- Malfunction of the CAN circuit

- Malfunction of the P0753: low clutch linear solenoid valve system

- Malfunction of the P0731: 1st gear incorrect ratio

- Malfunction of the TCM

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 line CAN Bus Diagnostics Chart).
STEP 2. Check the diagnostic trouble code.

Check the ASC diagnostic trouble code. Active Stability Control System (ASC)).

Q. Is the diagnostic trouble code set?

YES Check and repair the relevant diagnostic trouble code system.
NO Go to Step 3.
STEP 3. Perform the troubleshooting for diagnostic trouble code No. P0753: low clutch linear solenoid valve and diagnostic trouble code No. P0731: 1st gear incorrect ratio.

Check whether the diagnostic trouble code is reset.

Q. Is diagnostic trouble code No.P1796 set?

YES Replace the TCM.
NO This diagnosis is complete.