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Home >> Lexus >> 2011 >> GX 460 V8-4.6L (1UR-FE) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Collision Avoidance and Parking Assist Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Rear View Monitor System (w/ Side Monitor System) >> Reverse Signal Circuit

Reverse Signal Circuit





PARK ASSIST / MONITORING: REAR VIEW MONITOR SYSTEM (w/ Side Monitor System): Reverse Signal Circuit
- Reverse Signal Circuit

DESCRIPTION

The parking assist ECU receives a reverse shift position signal from the park/neutral position switch assembly.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK PARKING ASSIST ECU

(a) Disconnect the I3 parking assist ECU connector.





(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





Text in Illustration





NG -- CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - PARK/NEUTRAL POSITION SWITCH)

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table

2. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - PARK/NEUTRAL POSITION SWITCH)

(a) Disconnect the I3 parking assist ECU connector.

(b) Disconnect the C33 park/neutral position switch assembly connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY Removal