Toyota 4Runner manuals

Toyota 4Runner: Short in Motor LH (11,12)

DESCRIPTION

When there is a short in the side auto step motor circuit, the side auto step controller ECU assembly halts the operation of the automatic running board.

DTC No.

Detection Condition

Trouble Area

11

More than 44 A of current is flowing through the side auto step motor LH.

  • Wire harness or connector
  • Side auto step motor assembly

12

More than 44 A of current is flowing through the side auto step motor RH.

WIRING DIAGRAM


PROCEDURE

1.

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

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

  • *1: for LH
  • *2: for RH

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

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

Standard Resistance:

for LH

Tester Connection

Condition

Specified Condition

A42-3 (STW1) - A42-4 (DPL1)

Always

10 kΩ or higher

for RH

Tester Connection

Condition

Specified Condition

A42-2 (STW2) - A42-1 (DPL2)

Always

10 kΩ or higher


OK

REPLACE SIDE AUTO STEP MOTOR ASSEMBLY


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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