Toyota 4Runner Quiz
Brake

Acceleration Sensor Malfunction (C1420)

In this manual: Brake
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~1min read
DESCRIPTION

Refer to DTCs C1419 and C1435 (See page ).


DTC Code

DTC Detection Condition

Trouble Area

C1420

After the difference between GL1 and GL2 becomes 0.6 G or more with the vehicle stationary, the difference remains 0.4 G or more for 60 seconds or more.
  • Sensor installation
  • Yaw rate and acceleration sensor
WIRING DIAGRAM

Refer to DTCs C1232, C1243 and C1245 (See page ).


CAUTION / NOTICE / HINT

NOTICE:

When replacing the yaw rate and acceleration sensor, perform calibration (See page ).


PROCEDURE

  1. CHECK DTC (CAN COMMUNICATION SYSTEM)

(a) Check for DTCs (See page ).


Result

Result

Proceed to

CAN DTC is not output

A

CAN DTC is output

B

B

GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)
A

  1. CHECK YAW RATE AND ACCELERATION SENSOR INSTALLATION

(a) Check that the yaw rate and acceleration sensor is installed properly (See page ).


OK:

The sensor is tightened to the specified torque.

The sensor is not installed at an angle.


OK

REPLACE YAW RATE AND ACCELERATION SENSOR

NG

INSTALL YAW RATE AND ACCELERATION SENSOR CORRECTLY

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