Toyota 4Runner: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
NOTICE:
Turn the ignition switch off before removing parts.
HINT:
- If no abnormality is found when inspecting parts, inspect the stabilizer control ECU and ground points for poor contact.
- If a trouble code is output during the DTC check, check the circuit indicated by the DTC. For details of each code, refer to the "See page" for the respective "DTC Code" in the DTC chart.
- When 2 or more DTCs are output, perform circuit inspections one by one until the problem is identified.
- Inspect the fuse and relay before investigating the trouble areas as shown in the table below.
|
DTC Code |
Detection Item |
Trouble Area |
See page |
|---|---|---|---|
|
C1812/12 |
Pressure Sensor Malfunction / Upside |
- Harness or connector - Accumulator pressure sensor (Stabilizer control with accumulator housing assembly) - Stabilizer control ECU |
|
|
C1831/31 |
Accumulator Solenoid Malfunction / Upside |
- Harness or connector - Stabilizer control solenoid valve (Stabilizer control with accumulator housing assembly) - Stabilizer control ECU |
|
|
C1832/32 |
Accumulator Solenoid Malfunction / Downside |
- Harness or connector - Stabilizer control solenoid valve (Stabilizer control with accumulator housing assembly) - Stabilizer control ECU |
|
|
C1851/51 |
Low Pressure Malfunction in Upside of KDSS System |
- Hydraulic circuit - Harness or connector - Accumulator pressure sensor or stabilizer control solenoid valve (Stabilizer control with accumulator housing assembly) - Stabilizer control ECU |
|
|
C1853/53 |
High Pressure Malfunction in Upside of KDSS System |
- Hydraulic circuit - Harness or connector - Accumulator pressure sensor or stabilizer control solenoid valve (Stabilizer control with accumulator housing assembly) - Stabilizer control ECU |
|
|
C1879/79 |
Zero Point Calibration of Acceleration Sensor Undone |
- Brake control system (Yaw rate and acceleration sensor zero point calibration) - Stabilizer control ECU |
|
|
C1881/81 |
KDSS ECU Malfunction |
Stabilizer control ECU |
|
|
C1882/82 |
Power Supply Voltage Malfunction |
- Battery - Charging system - KDSS fuse - Harness or connector - Stabilizer control ECU |
|
|
C1883/83 |
Speed Sensor Circuit Malfunction |
- Brake control system - CAN communication system - Stabilizer control ECU |
|
|
C1884/84 |
Steering Angle Sensor Circuit Malfunction |
- Steering angle sensor (Spiral cable sub-assembly) - CAN communication system - Stabilizer control ECU |
|
|
C1887/87 |
Acceleration Sensor Circuit Malfunction |
- Yaw rate and acceleration sensor - CAN communication system - Stabilizer control ECU |
|
|
U0100/71 |
Lost Communication with ECM / PCM "A |
CAN communication system |
|
|
U0122/71 |
Lost Communication with Vehicle Dynamics Control Module |
CAN communication system |
|
|
U0124/71 |
Lost Communication with Lateral Acceleration Sensor Module |
CAN communication system |
|
|
U0126/71 |
Lost Communication with Steering Angle Sensor Module |
CAN communication system |
|
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Data List / Active Test
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 ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT INDICATOR LIGHT
(a) Check that the KDSS indicator light comes on for 2 seconds when the ignition
switch is turned to ON.
If the indicator check result ...
Other materials about Toyota 4Runner:
Side Auto Step Switch Circuit
DESCRIPTION
The side auto step controller ECU assembly receives the door open/closed signal
from each door courtesy light switch via the side auto step switch assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
Inspection should be performed on the ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK 4WD CONTROL ECU
(a) Measure the voltage and resistance according to the value(s) in the table
below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Speci ...
0.0071