LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 360 (Abs With BA & EBD System - Diagnostics) >> Circuit Inspection >> DTC C1249/49: Stop Light Switch Circuit >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check Stop Light Switch Operation 
    1. Check that the stop light lights up when brake pedal is depressed and turns off when the brake pedal is released.
    1. OK: Go To Step   3 
    2. NG: Go To Next Step  .
  2. Check Stop Light Switch Circuit 
    1. NG: Repair Or Replace Stop Light Switch Circuit 
    2. OK: Go To Next Step  .
  3. Check Skid Control ECU Terminal Voltage (STP Terminal) 
    1. Remove the skid control ECU with connectors still connected.
    2. Measure voltage between terminal STP of skid control ECU and body ground when brake pedal is depressed.
      Fig 1: Checking Skid Control ECU Terminal Voltage
      G01113338Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. OK: Voltage: 8-14 V 
    1. OK: Check And Replace Skid Control ECU Assy. 
    2. NG: Go To Next Step  .
  4. Check Harness And Connector (Stop Light Switch - Skid Control ECU).  See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS .
    1. OK: Proceed To Next Circuit Inspection Shown On Problem Symptom Table 
    2. NG: Repair Or Replace Harness Or Connector 
scientia non olet · About LEMON Manuals