Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Diameter of the Tire is not Uniform (C1337)

DESCRIPTION

The skid control ECU (master cylinder solenoid) measures the speed of each wheel by receiving signals from the speed sensors. These signals are used for recognizing whether all 4 wheels are operating properly. Therefore, all wheel signals must be equal.

DTC No.

DTC Detecting Condition

Trouble Areas

C1337

When either one of following condition detected:

  • Diameters different of 2 front wheels and 2 rear wheels.
  • Wheel speed sensor fault
  • Speed sensor
  • Speed sensor rotor
  • Speed sensor circuit
  • Tire sizes

CAUTION / NOTICE / HINT

NOTICE:

Check the speed sensor signal after replacement (See page PROCEDURE PROCEDURE ).

PROCEDURE

1.

CHECK TIRE SIZE

(a) Check tire size and condition of all 4 wheels.

OK:

All 4 wheels are the same size and in the same condition.

NG

REPLACE TIRES SO THAT ALL 4 TIRES ARE SAME IN SIZE

OK

2.

CHECK SPEED SENSOR ROTOR

(a) Remove the drive shaft, and check around the speed sensor rotor.

OK:

No scratches or foreign matter on the sensor tip.

NG

REPLACE SPEED SENSOR ROTOR

OK

3.

CHECK SPEED SENSOR

(a) Check the speed sensor circuit.

  • Front speed sensor (See page ).
  • Rear speed sensor (See page ).
NG

REPLACE SPEED SENSOR

OK

4.

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - EACH SPEED SENSOR)

(a) Check the speed sensor circuit .

  • Front speed sensor (See page ).
  • Rear speed sensor (See page ).
NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.

RECONFIRM DTC

(a) Clear the DTCs (See page ). (b) Drive the vehicle at more than 20 km/h (13 mph) for more than 60 seconds. ).

(b) Drive the vehicle at more than 20 km/h (13 mph) for more than 60 seconds.

(c) Check if the same DTCs are detected.

Result

Proceed to

DTC output

A

DTC not output

B

A

REPLACE MASTER CYLINDER SOLENOID

B

END

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Other materials:

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