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Home >> Lexus >> 2009 >> GX 470 V8-4.7L (2UZ-FE) >> Repair and Diagnosis >> Cruise Control >> Testing and Inspection >> Component Tests and General Diagnostics >> Cruise Control Switch Circuit
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Cruise Control Switch Circuit








CRUISE CONTROL: CRUISE CONTROL SYSTEM: Cruise Control Switch Circuit

Cruise Control Switch Circuit

DESCRIPTION

This circuit carries the -/SET, +/RES and CANCEL signals (each voltage) to the ECM.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT CRUISE CONTROL MAIN SWITCH




(a) Remove the cruise control main switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:






NG -- REPLACE CRUISE CONTROL MAIN SWITCH
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (CRUISE CONTROL MAIN SWITCH, BODY GROUND - ECM)
(a) Check for open and short circuit in harness and connector between cruise control main switch and ECM Electronic Circuit Inspection Procedure.
(b) Check for open and short circuit in harness and connector between cruise control main switch and body ground Electronic Circuit Inspection Procedure.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
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