DESCRIPTION
When the automatic running board is operating and the current in the side auto step motor is within standard parameters, the side auto step controller ECU assembly halts the operation of the automatic running board if it does not receive a side auto step motor hall sensor signal.
DTC No. |
Detection Condition |
Trouble Area |
---|---|---|
43 |
The side auto step motor LH current is normal and there is no side auto step motor assembly LH hall sensor signal. |
|
44 |
The side auto step motor RH current is normal and there is no side auto step motor assembly RH hall sensor signal. |
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.
(b) Disconnect the A41 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 |
---|---|---|
O25-1 (-1) - A41-5 (SSR-) |
Always |
Below 1 Ω |
O25-2 (SSR1) - A41-10 (SSR1) |
Always |
Below 1 Ω |
O25-3 (+1) - A41-14 (SSR+) |
Always |
Below 1 Ω |
A41-10 (SSR1) - Body ground |
Always |
10 kΩ or higher |
for RH
Tester Connection |
Condition |
Specified Condition |
---|---|---|
N23-1 (-2) - A41-5 (SSR-) |
Always |
Below 1 Ω |
N23-2 (SSR2) - A41-9 (SSR2) |
Always |
Below 1 Ω |
N23-3 (+2) - A41-14 (SSR+) |
Always |
Below 1 Ω |
A41-9 (SSR2) - Body ground |
Always |
10 kΩ or higher |
OK | ![]() |
REPLACE SIDE AUTO STEP MOTOR ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Interior Light Auto Cut Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) controls operation of the DOME
relay in order to supply power to the interior lights. When battery saving control
operates while the interior lights are on, the main body ECU (multiplex network
...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK
BODY ECU)
(a) Remove the main body ECU (See page ).
(b) Measure the voltage and resistance according to the value(s) in the table
below.
Termi ...