Cruise Main Indicator Light Circuit: Description

WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.

The hybrid vehicle control ECU detects a cruise control switch signal and sends it to the combination meter via CAN and BEAN. Then the CRUISE main indicator light comes on.
The CRUISE main indicator light circuit uses CAN and BEAN for communication. If there is a malfunction in this circuit, check for DTCs in the CAN communication system and multiplex communication system before troubleshooting this circuit.

PERFORM ACTIVE TEST BY INTELLIGENT TESTER

Connect the intelligent tester to the DLC3.

Check the CRUISE main indicator light by using ACTIVE TEST.

Combination Meter:

COMBINATION METER DATA LIST

Item	Test Details	Diagnostic Note
CRUISE INDIC	"CRUISE" indicator is ON/OFF	-

OK:

Indicator light comes on / goes off.

NG : REPLACE COMBINATION METER ASSY

OK : GO TO NEXT STEP

READ VALUE OF INTELLIGENT TESTER

Connect the intelligent tester to the DLC3.
Turn the ignition switch on, and turn the intelligent tester main switch on.

Check the DATA LIST for proper functioning of the CRUISE main indicator light.

Hybrid Vehicle Control ECU (Cruise Control):

HYBRID VEHICLE CONTROL ECU (CRUISE CONTROL) DATA LIST

Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
CCS INDICATOR M	Cruise indicator signal (Main CPU) / ON or OFF	ON: "CCS READY" ON OFF: "CCS READY" OFF	-

OK:

When cruise control main switch operation is performed, the result will be same as above.

NG : REPLACE HYBRID VEHICLE CONTROL ECU

OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE