Toyota 4Runner manuals

Toyota 4Runner: Yaw Rate Sensor Malfunction (C1436)

DESCRIPTION

Refer to DTC C1419 and C1435 (See page ).


DTC Code

DTC Detection Condition

Trouble Area

C1436

Either condition is met:

  1. With the vehicle stationary, the yaw rate and acceleration sensor output value is not 0°/s.
  2. An abnormal comparison value.

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 ).

  • Check the yaw rate and acceleration sensor signal after replacement (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

2.

READ VALUE USING TECHSTREAM (YAW RATE SENSOR)

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Select the Data List mode on the Techstream (See page ).


ABS/VSC/TRAC

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Yaw Rate Sensor

Yaw rate and acceleration sensor 1 reading/ Min.: -128°/s, Max.: 127°/s

Vehicle stationary: 0°/s

Right turn: -128 to 0°/s

Left turn: 0 to 127°/s

-

(f) Check that the yaw rate and acceleration sensor output value is displayed on the Techstream.

Result

Result

Proceed to

NG

Yaw rate and acceleration sensor output value is 0°/s when vehicle is stationary, but value fluctuates when turning

A

Yaw rate and acceleration sensor output value is not 0°/s when vehicle is stationary

B

OK

C


B

REPLACE YAW RATE AND ACCELERATION SENSOR


C

USE SIMULATION METHOD TO CHECK

A

3.

CHECK YAW RATE AND ACCELERATION SENSOR INSTALLATION

(a) Turn the ignition switch off.

(b) 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

Steering Angle Sensor Output Malfunction (C1434)
DESCRIPTION Steering angle sensor signals are sent to the skid control ECU via the CAN communication system. When there is a malfunction in the CAN communication system, it is detected by the ste ...

Lost Communication with ECM (C1437)
DESCRIPTION The skid control ECU receives signals from the ECM via the CAN communication system. DTC Code DTC Detection Condition Trouble Area C14 ...

Other materials about Toyota 4Runner:

Reassembly
REASSEMBLY CAUTION / NOTICE / HINT HINT: Use the same procedure for both the RH and LH sides. The procedure listed below is for the LH side. PROCEDURE 1. INSTALL OUTER MIRROR LIGHT ASSEMBLY BULB (w/ Side Turn Signal Light) (a) Install t ...

Rear Center Seat Inner Belt Assembly(for 60/40 Split Slide Walk-in Seat Type Rh Side)
Components COMPONENTS ILLUSTRATION Installation INSTALLATION CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the parts may injure your hands. HINT: A bolt without a torque specification is shown in the standard bolt chart ...

© 2016-2020 | www.to4runner.net

0.0068