DESCRIPTION
When the driving support ECU detects a cruise control switch on signal from the cruise control switch, it sends it to the combination meter through CAN communication. Then the cruise control indicator light turns on.
The cruise control indicator light circuit uses CAN communication. If there is a malfunction in this circuit, check for DTCs in the CAN communication system before troubleshooting this circuit.
INSPECTION PROCEDURE
When replacing the driving support ECU, always replace it with a new one. If a driving support ECU which was installed to another vehicle is used, the information stored in the driving support ECU will not match the information from the vehicle. As a result, a DTC may be stored.
PROCEDURE
PERFORM ACTIVE TEST USING GTS (CRUISE CONTROL INDICATOR LIGHT)
Select the item below in the Active Test, and then check that the cruise control indicator light illuminates (Click here).
| Tester Display | Test Part | Control Range | Diagnostic Note |
|---|---|---|---|
| Indicat. Lamp Cruise | Cruise control indicator light | ON/OFF | - |
| OK |
|---|
| Indicator light turns on/off. |
READ VALUE USING GTS (CRUISE CONTROL MAIN SWITCH)
Use the Data List to check if the cruise control indicator light is functioning properly (Click here).
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| Cruise Control Main Switch | Cruise control main switch / ON or OFF | ON: Cruise control main switch on OFF: Cruise control main switch off |
- |
| OK |
|---|
| On screen, item changes between ON and OFF according to above chart. |
| Result | Proceed to |
|---|---|
| OK | A |
| NG (for LHD) | B |
| NG (for RHD) | C |
GO TO METER / GAUGE SYSTEMClick here
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here
REPLACE DRIVING SUPPORT ECUClick here
REPLACE DRIVING SUPPORT ECUClick here