Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Trailer Tire Pressure Monitor (TTPM) Module
| Refer to COMPONENT INDEX . |
The TTPM module is mounted behind the rear bumper, slightly left of center. The TTPM begins monitoring pressure information transmitted by the TTPM sensors when the BCM message is set to IGN_RUN. The TTPM has a CAN interface to connect it to the vehicle network and performs the following functions:
- Receives and processes RF signals from each TTPM sensor
- Monitors the TTPM sensor status
- Manages internal power
- Implements algorithms and logic to generate low pressure and TTPM sensor/system malfunction warnings
- Transmits the messages to the IPC on the CAN-C bus
- Performs diagnostic functions via CAN diagnostics
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.