Toyota 4Runner: Diagnostic Trouble Code Chart

Toyota 4Runner Service Manual / Suspension / Suspension Control / Kinetic Dynamic Suspension System / 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
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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