Toyota 4Runner: 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. |
Detection Condition |
Trouble Area |
|---|---|---|
|
22 |
Open in the stowing or deploying side of the side auto step motor LH circuit. |
|
|
24 |
Open in the stowing or deploying side of the side auto step motor RH circuit. |
NOTICE:
This DTC is stored when the door is opened or closed, or the Active Test "Power Running Board Forced Retracting" is performed while the connector is disconnected from the side auto step motor assembly.
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 |
|---|---|---|
|
O25-4 (STW1) - A42-3 (STW1) |
Always |
Below 5 Ω |
|
O25-5 (DPL1) - A42-4 (DPL1) |
Always |
Below 5 Ω |
for RH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
N23-4 (STW2) - A42-2 (STW2) |
Always |
Below 5 Ω |
|
N23-5 (DPL2) - A42-1 (DPL1) |
Always |
Below 5 Ω |
| OK | .gif) |
REPLACE SIDE AUTO STEP MOTOR ASSEMBLY |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Short to GND in Hall Effect Sensor Power Circuit (31)
DESCRIPTION
When there is a short to GND in the side auto step motor hall sensor power circuit,
the side auto step controller ECU assembly does not operate the automatic running
board.
...
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.
...
Other materials about Toyota 4Runner:
On-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE
1. CHECK SIDE AIRBAG SENSOR ASSEMBLY LH (VEHICLE NOT INVOLVED IN COLLISION)
(a) ...
Downhill Assist Control Indicator Light does not Come ON
DESCRIPTION
Even if the downhill assist control switch is pressed, the downhill assist control
indicator light blinks and downhill assist control does not activate under the following
conditions:
The transfer is in H4.
The brake system is malf ...
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