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. |
|
|
12 |
More than 44 A of current is flowing through the side auto step motor RH. |
WIRING DIAGRAM
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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 | .gif) |
REPLACE SIDE AUTO STEP MOTOR ASSEMBLY |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Open in Motor LH Circuit (22,24)
DESCRIPTION
When there is an open in the side auto step motor circuit, the side auto step
controller ECU assembly does not operate the automatic running board.
DTC No.
Detect ...
Short to GND in Motor LH Circuit (21,23)
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.
DTC No.
...
Other materials about Toyota 4Runner:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...
Ambient Temperature Sensor Circuit (B1412)
DESCRIPTION
The cooler thermistor (ambient temperature sensor) is installed in the front
part of the cooler condenser assembly. This sensor is connected to the air conditioning
amplifier assembly and detects fluctuations in the ambient temperature. The se ...
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