Inspection Procedure 2: When the Selector Lever is Set to "N" Position, Cruise Control is not Cancelled.

OPERATION

When the selector lever is operated, the selector lever position signal from the inhibitor switch is sent to the CVT-ECU or A/T-ECU. Engine-ECU receives the selector lever position signal from the CVT-ECU or A/T-ECU via the CAN bus line.

COMMENTS ON TROUBLE SYMPTOM

Malfunction of CAN bus line.
The inhibitor switch circuit is suspected.

PROBABLE CAUSES

Malfunction of CAN bus system.
Damaged harness or connector.
Malfunction of the inhibitor switch.
Malfunction of the CVT-ECU.
Malfunction of the A/T-ECU.
Malfunction of the engine-ECU.

DIAGNOSIS PROCEDURE

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.
Before replacing the ECU, ensure that the CAN bus lines is normal.

STEP 1. Check the CAN bus system diagnosis.

Using M.U.T.-III, perform CAN bus diagnosis (Refer to GROUP 54C - Explanation About The M.U.T-III Can Bus Diagnostics

Q. Is the check result satisfactory?

	Go to Step 2.

	Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting, Can Bus Diagnostic Table ). Then go to Step 5.

STEP 2. Check the data list.

Using M.U.T.-III, check the data list (Refer to data list reference table

Item 88: Inhibitor switch<CVT>

Item 42: Neutral switch<A/T>

Q. Is the check result normal?

	Go to Step 3.

	Check the transmission system (Refer to GROUP 23A - Troubleshooting, Inspection Procedures for Diagnosis Code, Code No.P0705: Malfunction of Inhibitor Switch <CVT>, GROUP 23C - Troubleshooting, Inspection Procedures for Diagnosis Code, Code No.P0705: Malfunction of Inhibitor Switch <A/T>). Then go to Step 5.

STEP 3. Check the transmission system diagnosis code.

Using M.U.T.-III, perform transmission system diagnosis code (Refer to GROUP 23A - Troubleshooting, Diagnosis Function

<CVT>, GROUP 23C - Troubleshooting, Diagnosis Function

<A/T>).

Q. Is any diagnosis code stored?

	Repair the transmission system (Refer to GROUP 23A - Troubleshooting, Diagnosis Code Chart <CVT>, GROUP 23C - Troubleshooting, Diagnosis Code Chart <A/T>). Then go to Step 5.

	Go to Step 4.

STEP 4. Check the symptom.

Q. When the selector lever is set to "N" position, is the cruise control cancelled?

	It can be assumed that this malfunction is intermittent (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunction ).

	Replace the engine-ECU (Refer to GROUP 13A - Engine-ECU <4B1>, GROUP 13B - Engine-ECU <6B3>). Then go to Step 5.

STEP 5. Check the symptom.

Q. When the selector lever is set to "N" position, is the cruise control cancelled?

	The procedure is complete.

	Return to Step 1.