Toyota 4Runner: Hall Effect Sensor LH Pulse (41,42)
DESCRIPTION
When there is noise present in the side auto step motor hall pulse signal, the side auto step controller ECU assembly halts the operation of the automatic running board.
|
DTC No. |
Detection Condition |
Trouble Area |
|---|---|---|
|
41 |
The side auto step motor assembly LH hall sensor pulse signal is less than 1.5 ms 3 times in succession. |
|
|
42 |
The side auto step motor assembly RH hall sensor pulse signal is less than 1.5 ms 3 times in succession. |
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 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 |
|---|---|---|
|
O25-2 (SSR1) - A41-10 (SSR1) |
Always |
Below 1 Ω |
|
A41-10 (SSR1) - Body ground |
Always |
10 kΩ or higher |
for RH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
N23-2 (SSR2) - A41-9 (SSR2) |
Always |
Below 1 Ω |
|
A41-9 (SSR2) - Body ground |
Always |
10 kΩ or higher |
| OK | .gif) |
REPLACE SIDE AUTO STEP MOTOR ASSEMBLY |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Side Auto Step LH Stowing Timeout (51-56)
DESCRIPTION
When fully deploying or stowing the automatic running board takes more than 4
seconds, or when the side auto step motor hall sensor pulse signal exceeds the maximum
pulse count, the s ...
Short to Battery in Hall Effect Sensor Power Circuit (32)
DESCRIPTION
When there is a short to battery in the side auto step motor hall sensor power
circuit, the side auto step controller ECU assembly will not operate the automatic
running board.
...
Other materials about Toyota 4Runner:
Inspection
INSPECTION
PROCEDURE
1. INSPECT FRONT PROPELLER SHAFT ASSEMBLY
(a) Using a dial indicator, check the propeller shaft runout.
Maximum runout:
0.3 mm (0.0118 in.)
If the shaft runout is more than the maximum, replace the propeller shaft.
...
Precaution
PRECAUTION
1. PRECAUTIONS WHEN WORKING ON ELECTRIC STEERING LOCK
(a) After replacing the steering lock actuator assembly (steering lock ECU),
perform key ID code registration.
(b) After replacing the steering lock actuator assembly (steering lock ECU),
...
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