Inspection Procedure 10: When The Speed Limiter ON/OFF Switch is Turned ON, The Speed limiter Display Screen does not Display (However, the Cruise Control System is Normal).

The engine-ECU detects speed limiter ON/OFF switch ON signal to display the speed limiter display screen on the multi information display in the combination meter.
The speed limiter display screen ON signal is transmitted from the engine-ECU to the combination meter via CAN bus line.

The CAN bus line between the engine-ECU and the ETACS-ECU and between the ETACS-ECU and the combination meter may be defective.
The combination meter, ETACS-ECU or engine-ECU may also be defective.

DIAGNOSIS PROCEDURE

caution

If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
Before replacing the ECU, ensure that the CAN bus lines is normal.

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

	Go to Step 2.

	Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting, Can Bus Diagnostic Table ). Then go to Step 6.

Using M.U.T.-III, perform MPI system diagnosis code (Refer to GROUP 13C - Troubleshooting, Diagnosis Function

	Repair the MPI system (Refer to GROUP 13C - Troubleshooting, Diagnosis Code Procedures, Code No.U0141: ETACS-ECU Time-out ). Then go to Step 6.

	Go to Step 3.

Using M.U.T.-III, perform ETACS system diagnosis code (Refer to GROUP 54A - ETACS, Troubleshooting, Diagnosis Function

	Repair the ETACS system (Refer to GROUP 54A - Troubleshooting, Diagnosis Code Procedures, Code No.U0155: Combination Meter-ECU CAN Communication Timeout ). Then go to Step 6.

	Go to Step 4.

Using M.U.T.-III, check the combination meter system special function (Refer to GROUP 54A - Combination Meter, Special Function Table

	Go to Step 5.

	Repair the combination meter system (Refer to GROUP 54A - Combination Meter, Trouble Symptom Chart ). Then go to Step 6.

	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 13C - Engine-ECU ). Then go to Step 6.

	The procedure is complete.

	Return to Step 1.