This document is intended to provide supplemental information for concerns with brake light switches and...
International technical service bulletin IK0800677 for 2024-2026 International LT, 2024-2026 International HV and 2024-2026 International RH and others.
- Bulletin number
- IK0800677 (IK0800677)
- Component
- Electrical system
- Summary
- This document is intended to provide supplemental information for concerns with brake light switches and pressure sensors used by the BCM and PIM module to determine if the operator of the vehicle is applying the service brakes. All S13 vehicles are equipped with BCM feature 597483 (BCM PROG, BRAKE SWITCH, Use With Brake Application Pressure Switch). 597483 uses a normally open brake pressure switch that closes with 2-6 psi of air pressure and a brake application pressure sensor. When the switch is closed or the pressure sensor reads higher than 4psi, the BCM considers the brakes applied and will broadcast that over the J1939 networks to other modules. The S13 also includes a redundant brake switch that is wired directly to the PIM. This switch is normally closed and opens with 2-6 psi of air pressure. If the S13 ECM believes the brakes are applied from one of these brake signals, it can reduce or completely cut throttle input.
Vehicles covered
- International LT 2024-2026 202420252026
- International HV 2024-2026 202420252026
- International RH 2024-2026 202420252026
- International HX 2024-2026 202420252026
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