Cruise Control System Cruise Main Indicator Light Circuit

DESCRIPTION

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING TECHSTREAM

READ VALUE USING TECHSTREAM

DESCRIPTION

1. The ECM detects a cruise control switch signal and sends it to the combination meter assembly through CAN. Then the cruise main indicator light comes on.
   
2. The cruise main indicator light circuit uses CAN for communication. If there is a malfunction in this circuit, check for DTCs in the CAN Communication System before troubleshooting this circuit (COROLLA_ZRE142 RM000000WI60ACX.html).
   

INSPECTION PROCEDURE

1. Connect the Techstream to the DLC3.
   

2. Turn the ignition switch to ON.
   

3. Turn the Techstream on.
   

4. Enter the following menus: Body Electrical / Combination Meter / Active Test.
   

5. Check the CRUISE main indicator light by performing the Active Test.
   
   

   Combination Meter Assembly

   Tester Display	Test Part	Control Range	Diagnostic Note
   Indicat. Lamp Cruise	Cruise main indicator light	OFF or ON	Confirm that the vehicle is stopped, engine idling

   OK:

   Indicator light blinks/goes off.
   

1. Connect the Techstream to the DLC3.
   

2. Turn the ignition switch to ON.
   

3. Turn the Techstream on.
   

4. Enter the following menus: Powertrain / Cruise Control / Data List.
   

5. Check the Data List for proper functioning of the cruise main indicator light.
   
   

   Cruise Control (ECM)

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   CCS Indicator M-CPU	Cruise main indicator signal (Main CPU)/ON or OFF	ON: Cruise main indicator light on OFF: Cruise main indicator light off	-

   OK:

   When the cruise control main switch is operated, the display changes as shown above.
   

   Result:

   Result	Proceed to
   OK	A
   NG (for 2ZR-FE)	B
   NG (for 2AZ-FE)	C