Toyota 4Runner: Automatic Running Board System
Toyota 4Runner Service Manual / Vehicle Exterior / Exterior Panels / Trim / Automatic Running Board System
- Parts Location
- Precaution
- System Diagram
- How To Proceed With Troubleshooting
- Operation Check
- Initialization
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- Data List / Active Test
- Dtc Check / Clear
- Diagnostic Trouble Code Chart
- Motor LH Over Temperature (64,65)
- Motor LH Current Senser (62,63)
- ECU Circuit (61)
- Hall Effect Sensor LH (43,44)
- Side Auto Step LH Stowing Timeout (51-56)
- Hall Effect Sensor LH Pulse (41,42)
- Short to Battery in Hall Effect Sensor Power Circuit (32)
- Short to Battery in Motor RH Circuit (25,26)
- Short to GND in Hall Effect Sensor Power Circuit (31)
- Open in Motor LH Circuit (22,24)
- Short in Motor LH (11,12)
- Short to GND in Motor LH Circuit (21,23)
- Side Auto Step ECU Power Source Circuit
- Side Auto Step Switch Circuit
- Door Courtesy Switch Circuit
- Speed Signal Circuit
Automatic Running Board Switch
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE DOOR SCUFF PLATE ASSEMBLY LH
2. REMOVE COWL SIDE TRIM BOARD LH
3. REMOVE NO. 1 INSTRUMENT CLUSTER FINISH PANE ...
Parts Location
PARTS LOCATION
ILLUSTRATION
...
Other materials about Toyota 4Runner:
Speed Signal Circuit
DESCRIPTION
The vehicle speed signal consists of pulses sent to the combination meter assembly
from the master cylinder solenoid (skid control ECU)*1 or skid control ECU (brake
actuator assembly)*2.
*1: for 4WD
*2: for 2WD
WIRING DIAGRA ...
Front Passenger Side Door Entry Unlock Function does not Operate
DESCRIPTION
If the front passenger side door entry unlock function does not operate but the
entry lock function operates, the communication line between the vehicle and electrical
key transmitter is normal. The part at fault may be an unlock sensor circui ...
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