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 601 (AUXILIARY BRAKE SYSTEM)DIAGNOSIS AND TESTINGAUXILIARY BRAKE SYSTEMDIAGNOSTIC TROUBLE CODE (DTC) CHARTGLOBAL CUSTOMER SYMPTOM CODE (GCSC) CHART
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD
Global Customer Symptom Code (GCSC) Chart
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWDSECTION Global Customer Symptom Code (GCSC) 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.
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
Global Customer Symptom Code Chart
| Customer Symptom | Action |
|---|---|
| Driver Aid and Information > Warning Indicators/Messages/Chimes > Trailer/Towing > Inoperative | GO to Pinpoint Test A |
| Driver Aid and Information > Warning Indicators/Messages/Chimes > Trailer/Towing > Inoperative | GO to Pinpoint Test E |
| Driver Aid and Information > Warning Indicators/Messages/Chimes > Trailer/Towing > Inoperative | GO to Pinpoint Test F |
| Driver Aid and Information > Warning Indicators/Messages/Chimes > Trailer/Towing > Stays On | GO to Pinpoint Test C |
| Stop/Steer/Ride > Stopping > Performance/Effectiveness > While Towing | GO to Pinpoint Test A |
| Stop/Steer/Ride > Stopping > Performance/Effectiveness > While Towing | GO to Pinpoint Test B |
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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.