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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 464 (Abs With EBD System - Diagnostics) >> Abs With EBD System (April, 2003) >> DTC C1249/49: Open Circuit In Stop Light Switch Circuit >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT STOP LAMP SWITCH ASSY 
    1. Check that the stop light lights up when brake pedal is depressed and turns OFF when the brake pedal is released.
    1. NG: Go to step   4 
    2. OK: GO TO NEXT STEP. 
  2. INSPECT SKID CONTROL ECU TERMINAL VOLTAGE (STP TERMINAL) 
    1. Disconnect skid control ECU connector.
    2. Measure voltage between terminal STP (16) and GND (1, 23) of skid control ECU harness side connector when the brake pedal is depressed.

      Voltage: 10 - 14 V 

      Fig 1: Identifying Terminal STP (16) And GND (1, 23) Of Skid Control ECU Harness Side Connector
      G02860859Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: CHECK AND REPLACE BRAKE ACTUATOR ASSY 
    2. NG: GO TO NEXT STEP. 
  3. CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - SKID CONTROL ECU) 
    1. Check for open and short circuit in harness and connector between stop light switch and skid control ECU (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE 
  4. CHECK HARNESS AND CONNECTOR (STOP LIGHT CIRCUIT) 
    1. Check for open and short circuit in harness and connector of the stop light circuit (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    1. OK: REPLACE STOP LAMP SWITCH ASSY 
    2. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
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