Toyota 4Runner manuals

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.
Kinetic Dynamic Suspension System

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


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:

Control Module Communication Bus OFF (U0073,U0100,U0114,U0123,U0124,U0126)
DESCRIPTION DTC Code DTC Detection Conditions Trouble Area U0073 One of the following conditions is met: When the IG1 terminal voltage is between 10 and 17.4 V, after the output ...

Removal
REMOVAL PROCEDURE 1. REMOVE INSTRUMENT PANEL SUB-ASSEMBLY (a) Remove the instrument panel sub-assembly (See page ). 2. REMOVE NO. 1 HEATER TO REGISTER DUCT 3. REMOVE NO. 2 HEATER TO REGISTER DUCT 4. REMOVE NO. 1 SIDE DEFROSTER NOZZLE DUCT 5. ...

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