Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
3Original wording in English
FORD
Some 2025 Mustang Mach-E vehicles built on or before 30-Jun-2025 and 2024 F-150 Lightning vehicles may exhibit a flashing light on the air conditioning (A/C) button with a lack of heat and/or A/C with diagnostic trouble code (DTC) B1717:06 stored in the heat pump valve control module (HPVCM). This may be due to the software in t…
FORD
Some 2024-2025 F-150 Lightning and 2025 Mustang Mach-E vehicles may exhibit various intermittent inoperative climate control symptoms with diagnostic trouble code (DTC) B1717:06 in the heat pump valve control module (HPVCM). Workshop Manual (WSM), Section 412-00 Climate Control System - General Information > Diagnosis and Testin…
FORD
Some 2025 F-150 Lightning vehicles may set diagnostic trouble code (DTC) B1717:06 in the heat pump valve control module (HPVCM) after a diagnostic self-test is performed.
Check vehicle applicability
3A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | F-150 LIGHTNING BEV ↗ | 2025 |
| Ford | F-150 LIGHTNING BEV ↗ | 2024 |
| Ford | MUSTANG MACH E ↗ | 2025 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Seat Driver Forward Switch Circuit Failure
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.