Pinpoint Test I : B1182:00 - GFM (Generic Function Module): Notes
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
Normal Operations and Fault Conditions
REFER to: Tire Pressure Monitoring System (TPMS) - System Operation and Component Description .
Communication between the GFM and the trailer TPMS sensors can be interrupted by RFI, which causes intermittent issues that are not vehicle concerns. RFI is generated by electrical motors and appliance operation, cellular telephones, remote transmitters, power inverters and portable entertainment equipment.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| B1182:00 | Tire Pressure Monitoring System (TPMS): No Sub Type Information | Set by the GFM when all of the trailer tire pressure sensors are faulted or not communicating with the GFM. |
Possible Sources
- RFI
- TPMS sensor(s)
- GFM
Visual Inspection and Diagnostic Pre-checks
- Inspect for cell phone chargers or GPS units.
- Inspect for Non-Original Equipment Manufacturer (OEM) wheels or run-flat tires.
- Verify horn operation.
- Verify spare tire is not in use.
NOTE:
Make sure all aftermarket electronic equipment has been disconnected (if possible) and the customer has been questioned about the electronic equipment they may have been using in the vehicle when this concern was identified.