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
Damaged harness or connector.
Malfunction of the combination meter.
Malfunction of the engine-ECU.
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?