P0803

DTC P0803, sometimes indicated as P080300 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the causing 1-4 upshift (skip shift) solenoid control circuit malfunction.

This code is set when the PCM detects a problem with the solenoid circuit that controls upshift. This can be caused by a wiring problem, a failed solenoid, or a problem with the PCM.
If the code is caused by a wiring problem, the most likely solution is to find and fix the wiring problem. If the code is caused by a failed solenoid, the most likely solution is to replace the solenoid. If the code is caused by a problem with the PCM, the most likely solution is to replace the PCM.

• P0803: 1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction
• P0803: Upshift/Skip Shift Solenoid Control Circuit
• P0803: 1-4 Upshift (Skip Shift) Solenoid Circuit Malfunction
• P0803: 1-4 Upshift (Skip shift) solenoid – circuit malfunction
• P0803 00: 1-4 Upshift (Skip shift) solenoid - circuit malfunction