Inspection Procedure 7: When the "ON/OFF" Switch is Turned ON, the Cruise Control Indicator Lamp does not Illuminate (However, the Cruise Control System is Normal).














OPERATION


The engine-ECU detects "ON/OFF" switch ON signal to illuminate the cruise control indicator lamp on the combination meter.

COMMENT


The combination meter or engine-ECU may also be defective.

PROBABLE CAUSE




DIAGNOSIS PROCEDURE


STEP 1. Check the cruise control indicator lamp.


(1)Disconnect engine-ECU connector C-105 and check at the harness side connector.
(2)Turn the ignition switch to the "ON" position.
(3)Check the illumination condition of the cruise control indicator lamp when engine-ECU connector C-105 terminal No.45 is earthed.
OK: The cruise control indicator lamp illuminates.

Q. Is the check result normal?

Go to Step 5.
Go to Step 2.

STEP 2. Connectors check: C-111 combination meter connector, C-105 engine-ECU connector and C-53 <LHD> or C-35 <RHD> intermediate connector.


Q. Is the check result normal?

Go to Step 3.
Repair or replace the damaged connector. Then go to Step 6.

STEP 3. Check the harness wire between combination meter connector C-111 terminal No.53 and engine-ECU connector C-105 terminal No.45.



  • Check harness wire for open/short circuit and damage.

Q. Is the check result normal?

Go to Step 4.
Repair or replace the damaged harness wire. Then go to Step 6.

STEP 4. Check the combination meter.


Refer to GROUP 54A - Combination Meter, Troubleshooting, Check at ECU Terminals .

Q. Is the check result normal?

Go to Step 5.
Replace the combination meter (Refer to GROUP 54A - Combination Meter ). Then go to Step 6.

STEP 5. Check the symptom.


Q. When the "ON/OFF" switch is turned ON, is the cruise control indicator lamp illuminated?

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 Malfunctions ).
Replace the engine-ECU (Refer to GROUP 13A - Engine-ECU ). Then go to Step 6.

STEP 6. Check the symptom.


Q. When the "ON/OFF" switch is turned ON, is the cruise control indicator lamp illuminated?

The procedure is complete.
Return to Step 1.