garajizOBD-II code · manufacturer-specific
P1780
Transmission System MIL Fault
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Moderate (3/5)
- Can I keep driving?
- Drive with caution
What does P1780 mean?
P1780 is defined as “Transmission System MIL Fault”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- BMW: CAN Torque Reduction
- Volkswagen: Engine Intervention Readable
- Mercedes-Benz: Modulation Pressure Switchover Valve ATCC Y34 Or Upshift Delay Switchover Valve ATCC Y35
- Lexus: PNP Switch Malfunction
- GM, GMC: Park Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit
- Saturn: Park Neutral Position PNP Switch Circuit Engine Torque Signal Circuit
- Oldsmobile: Park Neutral Position Switch Circuit Engine Torque Signal Circuit
- Toyota: Park Neutral Position Switch Malfunction Only For A/T
- Cadillac, Chevrolet: Park/Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit
- Buick: Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit
- Citroen, Diğer, Peugeot: Trans Control Switch (O/D Cancel) Out of Self Test Range
- Kia: Transmission Control Module Ignition Advance Circuit Malfunction
- Nissan: Transmission Control Switch Circuit Overdrive Off Switch Not Cycled During The Self Test
- Ford, Lincoln, Mercury: Transmission Control Switch Circuit is Out of Self-Test Range
- Mazda: Transmission Control Switch Circuit, Overdrive Off Switch Not Cycled During The Self Test
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This page is general information; an exact diagnosis needs measurements and a technician’s check.