DESCRIPTION
The driving support ECU assembly turns on the SET indicator light by sending indicator output demand signals to the combination meter assembly via CAN communication.
The cruise control SET indicator light illuminates when the dynamic radar cruise control system is controlling vehicle speed.
CAUTION / NOTICE / HINT
Note
When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly which was installed to another vehicle is used, the information stored in the driving support ECU assembly will not match the information from the vehicle. As a result, a DTC may be stored.
PROCEDURE
PERFORM ACTIVE TEST USING GTS (INDICAT. SET)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Combination Meter / Active Test.
Perform "Active Test" according to the display on the GTS.
| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Indicat. SET | Cruise control SET indicator | ON or OFF | - |
| Tester Display |
|---|
| Indicat. SET |
| OK |
|---|
| The cruise control SET indicator comes on or goes off. |
| Result | |||
|---|---|---|---|
|
| NG |
|
GO TO METER / GAUGE SYSTEM Click here |
| OK |
|
READ VALUE USING GTS (SET/COAST SWITCH)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Radar Cruise / Data List.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| SET/COAST Switch | -/SET switch signal | ON or OFF | ON: -/SET switch on OFF: -/SET switch off |
- |
| Tester Display |
|---|
| SET/COAST Switch |
| OK |
|---|
| When the cruise control main switch (-/SET switch) is operated, the display changes as shown above. |
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
| A |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here |
| B |
|
REPLACE COMBINATION METER ASSEMBLY Click here |
| C |
|
REPLACE DRIVING SUPPORT ECU ASSEMBLY Click here |