Toyota 4Runner: Diagnosis System
DIAGNOSIS SYSTEM
1. FUNCTION OF AUTOMATIC RUNNING BOARD WARNING LIGHT
(a) When a malfunction is detected in the automatic running board system, the
automatic running board warning light in the combination meter comes on to inform
the driver of the malfunction.
(b) The operation and condition of this control are described below.
Operation
|
Condition
|
Comes on
|
- When the jam protection function has operated.*1
- When the automatic running board is not fully stowed while the
vehicle is moving (at a speed of 8 km/h [5 mph] or more).*2
|
Blinks
|
When a DTC has been output.
|
HINT:
- *1: The automatic running board warning light turns off when the automatic
running board is deployed or stowed normally with the operation of the doors.
Also, the warning light will turn off 20 minutes after it is lit.
- *2: The automatic running board warning light turns off when the automatic
running board is stowed normally. Also, the warning light will turn off
20 minutes after it is lit.
- *3: The automatic running board warning light turns off when the abnormal
state of the automatic running board system is resolved, and the system
returns to a normal state. Also, the warning light will turn off 20 minutes
after it is lit, even if the abnormal state is not resolved.
TERMINALS OF ECU
1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK
BODY ECU)
(a) Measure the voltage according to the value(s) in the table below.
Ter ...
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any p ...
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Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Air conditioning system data and Diagnostic Trouble Codes (DTCs) can be read
through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to
be malfunctioning, use the Techstream to check for malfunct ...
Air Inlet Damper Control Servo Motor Circuit (B1442)
DESCRIPTION
The recirculation damper servo sub-assembly sends pulse signals to inform the
No. 1 air conditioning amplifier assembly of the damper position. The No. 1 air
conditioning amplifier assembly activates the motor (normal or reverse) based on
th ...