P1820
Internal Mode Switch Circuit A Low.
- GM
- Powertrain
- Manufacturer code
How this code is built
- P
- SystemPowertrain
- 1
- Defined byThe manufacturer
- 8
- AreaTransmission
- 20
- FaultThe specific fault in that area
Guide
Writing the guide for P1820. The first open of a code takes up to a minute.
This code for other makes
- P1820BuickInternal Mode Switch Circuit A Low
- P1820CadillacInternal Mode Switch Circuit A Low
- P1820ChevroletInternal Mode Switch Circuit A Low
- P1820FordTransmission Transfer Case Clockwise Shift Relay Coil Circuit Failure
- P1820GMCInternal Mode Switch Circuit A Low
- P1820LincolnTransmission Transfer Case Clockwise Shift Relay Coil Circuit Failure
- P1820MercuryTransmission Transfer Case Clockwise Shift Relay Coil Circuit Failure
- P1820OldsmobileInternal Mode Switch Circuit A Low
- P1820OtherTransmission Transfer Case Clockwise Shift Relay Coil Circuit Failure
- P1820SaturnInternal Mode Switch Circuit A Low
- P1820VolkswagenPressure Control Solenoid 2 Short To B+