Automatic Running Board System

EXTERIOR PANELS / TRIM: AUTOMATIC RUNNING BOARD SYSTEM: 21,23: Short to GND in Motor LH Circuit
23 - Short to GND in Motor RH Circuit

DESCRIPTION

When there is a short to GND in the side auto step motor circuit, the side auto step controller ECU assembly does not operate the automatic running board.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT SIDE AUTO STEP MOTOR ASSEMBLY

(a) Disconnect the O25*1 or N23*2 side auto step motor assembly connector.

* *1: for LH

* *2: for RH

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





Standard Resistance:

for LH
for RH










Text in Illustration





NG -- REPLACE SIDE AUTO STEP MOTOR ASSEMBLY Removal
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (SIDE AUTO STEP MOTOR - SIDE AUTO STEP CONTROLLER ECU)

(a) Disconnect the A42 side auto step controller ECU assembly connector.

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

Standard Resistance:

for LH
for RH










NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE SIDE AUTO STEP CONTROLLER ECU ASSEMBLY Removal