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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 334 (Anti-Lock Brake System W/EBD & BA & TRAC & VSC System - Diagnostics) >> Circuit Inspection >> DTC C1237/37 Wrong Number Of Teeth At 1 Of 4 Wheels >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check tire size  .

    NG:  Replace tires so that all 4 tires are the same in size.

    If OK  , go to step  2.

  2. Check sensor rotor  . See DTC C0200/31-C1331/36 & C1332/38, C1333/39 - SPEED SENSOR CIRCUIT .

    NG:  Replace speed sensor rotor.

    If OK  , go to step  3.

  3. Check speed sensor  . See DTC C0200/31-C1331/36 & C1332/38, C1333/39 - SPEED SENSOR CIRCUIT .

    NG:  Replace speed sensor.

    If OK  , go to step  4.

  4. Check for open and short circuit in harness and connector between front speed sensor, rear speed sensor and ABS & BA & TRAC & VSC ECU  . See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE .

NG:  Repair or replace harness and connector.

OK:  Check and replace ABS & BA & TRAC & VSC ECU.