P0855
Drive Switch Input Circuit High
Generic code
Transmission System
High severity
Hard repair
Free on OBD DashX
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What P0855 means
- The fault code P0855 indicates a high voltage condition in the drive switch input circuit. This code typically points to a problem with the electrical circuitry or connection associated with the drive switch, which is responsible for detecting the selection of the Drive gear in automatic transmissions.
Possible symptoms
- Malfunction Indicator Lamp (MIL) or Check Engine Light illuminated
- Inability to engage the Drive gear
- Difficulty shifting into the Drive gear
- Erratic behavior of the transmission
- Potential limited drivability due to the high voltage condition in the drive switch input circuit
Possible causes
- Faulty drive switch
- Wiring or connection problems in the drive switch input circuit
- Loose or corroded connectors in the transmission system
- Faulty transmission control module (TCM)
- Intermittent issues with the drive switch input circuit
Related parts
- Drive Switch: Drive switch places the gear in drive ("D") mode in an automatic transmission car
Possible solutions
- Test and replace the faulty drive switch, if necessary
- Inspect and repair the drive switch input circuit for any issues, such as damaged wires or connectors
- Ensure the connectors in the transmission system are secure and free from corrosion
- Test and replace the faulty transmission control module (TCM), if necessary
- Inspect the drive switch input circuit for any intermittent issues and repair as needed
Free on OBD DashX
P0855 on OBD DashX
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