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.
DTC No. |
Detection Condition |
Trouble Area |
---|---|---|
31 |
The side auto step motor hall sensor voltage is less than 4 V when the automatic running board is in operation. |
|
WIRING DIAGRAM
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (SIDE AUTO STEP MOTOR POWER SOURCE) |
(a) Disconnect the O25*1 and N23*2 side auto step motor assembly connector.
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage: for LH
for RH
|
|
OK | ![]() |
REPLACE SIDE AUTO STEP MOTOR ASSEMBLY |
|
2. |
CHECK HARNESS AND CONNECTOR (SIDE AUTO STEP MOTOR - SIDE AUTO STEP CONTROLLER ECU) |
(a) Disconnect the A41 side auto step controller ECU assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A41-14 (SSR+) - Body Ground |
Always |
10 kΩ or higher |
A41-14 (SSR+) - A41-5 (SSR-) |
Always |
10 kΩ or higher |
OK | ![]() |
REPLACE SIDE AUTO STEP CONTROLLER ECU ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
System Diagram
SYSTEM DIAGRAM
Communication Table
Sender
Receiver
Signal
Line
Main body ECU (Multiplex network body ECU)
Combination meter assembly
Front door courtesy light switch LH signa ...
Operation Check
OPERATION CHECK
1. CHECK POWER DOOR LOCK OPERATION
NOTICE:
The operation check below is based on the non-customized initial condition of
the vehicle.
(a) Check basic functions.
(1) Check that all doors lock when the lock side of the multiplex network ma ...