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HOMESERVICE MANUALSHONDA2002CIVIC SIREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 141 (IDLE CONTROL SYSTEM)BRAKE PEDAL POSITION SWITCH SIGNAL CIRCUIT TROUBLESHOOTING
2002 Honda Civic Si

Brake Pedal Position Switch Signal Circuit Troubleshooting

2002 Honda Civic SiSECTION Brake Pedal Position Switch Signal Circuit Troubleshooting
WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the ignition switch ON (II).
  2. Check the BRAKE SWITCH in the DATA LIST with the HDS.

    Does it indicate OFF? 

    1. YES  - Go to step 3.
    2. NO  - Inspect the brake pedal position switch (see BRAKE PEDAL AND BRAKE PEDAL POSITION SWITCH ADJUSTMENT ).
  3. Press the brake pedal, and check the BRAKE SWITCH in the DATA LIST with the HDS.

    Does it change to ON? 

    1. YES  - The brake pedal position switch signal circuit (BKSW line) is OK.
    2. NO  - Go to step 4.
  4. Turn the ignition switch OFF.
  5. Jump the SCS line with the HDS.
  6. Disconnect the brake pedal position switch 4P connector.
  7. Disconnect PCM connector A (44P).
  8. Check for continuity between PCM connector terminal A8 and body ground.
    Fig 1: Checking Continuity Between PCM Connector Terminal A8 And Body Ground
    G03704535Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    1. YES  - Repair short in the wire between the PCM (A8) and the No. 13 HORN, STOP (20 A) fuse. Replace the No. 13 HORN, STOP (20 A) fuse.
    2. NO  - Go to step 9.
  9. Connect brake pedal position switch 4P connector terminal No. 2 to body ground with a jumper wire.
    Fig 2: Connecting Brake Pedal Position Switch 4P Connector Terminal No. 2 To Body Ground Using Jumper Wire
    G03704536Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Check for continuity between PCM connector terminal A8 and body ground.
    Fig 3: Checking Continuity Between PCM Connector Terminal A8 And Body Ground
    G03704537Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    1. YES  - Repair open in the wire between the brake pedal position switch and the No. 13 HORN, STOP (20 A) fuse. Inspect the brake pedal position switch (see BRAKE PEDAL AND BRAKE PEDAL POSITION SWITCH ADJUSTMENT ).
    2. NO  - Repair open in the wire between the PCM (A8) and the brake pedal position switch.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.