Open in Motor LH Circuit (22,24)
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.png)
PROCEDURE
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 |
Test yourself
A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.