Section 603 (Auxiliary Brake System)
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.
- Description And Operation
- Diagnosis And Testing
- Auxiliary Brake System
- Diagnostic Trouble Code (DTC) Chart
- Symptom Charts
- Pinpoint Tests
- Pinpoint Test A: The Trailer Brakes Are Inoperative
- Pinpoint Test B: The Trailer Brakes Are Always Engaged
- Pinpoint Test C: The Message Center Displays Wiring Fault On Trailer
- Pinpoint Test D: The Message Center Displays Trailer Connected Message When No Trailer Is Connected To The Vehicle
- Pinpoint Test E: The Message Center Displays A False Trailer Disconnected Message When A Trailer Is Connected To The Vehicle
- Pinpoint Test F: The Message Center Displays Trailer Disconnected, Trailer Gain XX.XX, No Trailer After A Trailer Is Connected To The Vehicle And The Manual Slider Switch Is Moved Or A Gain Button Is Pressed.
- Pinpoint Test G: The Message Center Displays Trailer Brake Module Fault When The Vehicle Is Not Equipped With A TBM (Trailer Brake Control Module).
- Pinpoint Test H: B148B:2A, B148B:49, B148C:2A Or U064D:08
- Pinpoint Test I: U3003:16
- Pinpoint Test J: U3003:17
- Pinpoint Test K: U3008:13
- Pinpoint Test L: After Market Trailer Connector Inoperative
- Auxiliary Brake System
- Removal And Installation