Cruise Main Indicator Light Circuit [09/2014 - 11/2017]: Procedure
WARNING: This page is about a different car, the 2017 Lexus RC F, 2016 Lexus RC F, and 2015 Lexus RC F. However, it is still accessible from the selected car via links, so may be relevant.
- PERFORM ACTIVE TEST USING TECHSTREAM (INDICAT. LAMP CRUISE, METER DISPLAY 1)
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Body Electrical / Combination Meter / Active Test.
- Perform "Active Test" according to the display on the Techstream.
Body Electrical > Combination Meter > Active Test
Tester Display Measurement Item Control Range Diagnostic Note Indicat. Lamp Cruise Cruise control indicator ON or OFF - Body Electrical > Combination Meter > Active Test
Tester Display Indicat. Lamp Cruise OK
The cruise control indicator comes on or goes off.
Result
Proceed to OK NG
Result:
NG
GO TO METER / GAUGE SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ]
Result:
OK
See step 2
- READ VALUE USING TECHSTREAM (CCS INDICATOR M-CPU)
- Enter the following menus: Powertrain / Cruise Control / Data List.
- Read the Data List according to the display on the Techstream.
Powertrain > Cruise Control > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note CCS Indicator M-CPU Cruise control indicator signal (Main-CPU) ON or OFF ON: Cruise control indicator light illuminated in green
OFF: Cruise control indicator light not on- Powertrain > Cruise Control > Data List
Tester Display CCS Indicator M-CPU OK
When the cruise control switch (ON/OFF button) is operated, the display changes as shown above.
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [09/2014 - 11/2017]
Result:
NG
REPLACE ECM. Refer to REMOVAL [09/2014 - ]