Toyota 4Runner: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.
Steering Lock System|
DTC Code |
Detection Item |
Trouble Area |
See page |
|---|---|---|---|
|
B2781 |
Open / Short in Steering Lock ECU |
- Steering lock actuator assembly (steering lock ECU) - LIN communication system - Harness or connector of LIN bus line |
|
|
B2782 |
Power Source Control ECU Malfunction |
- Steering lock actuator assembly (steering lock ECU) - Power management control ECU - Harness or connector |
|
|
B2788 |
IG2 Signal Malfunction |
- IGN fuse - Steering lock actuator assembly (steering lock ECU) - Power management control ECU - Harness or connector |
|
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Data List / Active Test
DATA LIST / ACTIVE TEST
1. READ 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 ...
IG2 Signal Malfunction (B2788)
DESCRIPTION
The steering lock ECU determines the on/off status of the engine switch through
the IG2 signal circuit.
The steering lock ECU does not lock the steering when it receives the IG2 relay ...
Other materials about Toyota 4Runner:
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSION
(a) The type of ignition switch used on this model differs depending on the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Igniti ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" ...
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