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.
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HOMESERVICE MANUALSFORD2021TRANSIT-350 HD BASE, VAN CARGO EXTENDED, 3.5L ENG VIN 8, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 589 (COLLISION WARNING AND COLLISION AVOIDANCE SYSTEM)DESCRIPTION AND OPERATIONCOLLISION WARNING AND COLLISION AVOIDANCE SYSTEM - SYSTEM OPERATION AND COMPONENT DESCRIPTIONSYSTEM OPERATIONNETWORK MESSAGE CHART
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD
Network Message Chart
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWDSECTION Network Message Chart
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Network Input Messages - ACM
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| IPC chime | IPC | Data used to command a warning chime during a possible collision event and audio mute so the warning chime can be heard. |
Network Input Messages - IPC
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Collision avoidance and driver support camera status | IPMA | Data used to command the pre-collision assist system fault status in the message center. |
| Collision avoidance and driver support chime status | CCM | Data used to command a warning chime that a collision event is possible. |
| Collision avoidance and driver support radar blocked warning | CCM | Data used to command a radar blocked message in the message center. |
| Forward collision chime request | CCM | Data used to command warning chime during a possible collision event. When this message is received, the IPC sends the audio mute message to the ACM. |
| Forward collision warning message request | CCM | Data used to command warning chime and messages during possible collision event. |
Network Input Messages - IPMA
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Collision avoidance and driver support radar status | IPMA | Data used to communicate the function status of the camera in the IPMA. |
Network Input Messages - ABS Module
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Collision mitigation by braking deceleration request | CCM | Data used to enable the brakes to slow vehicle speed when the pre-collision assist system determines that a collision is imminent. |
| Collision mitigation by braking brake pre-charge | CCM | Data used to enable the ABS module to pre-charge the brakes to prepare them for rapid braking by the driver. |
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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.