Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Jeep Compass TrailhawkFACTORY OEM SERVICE PROCEDURE
2.4L - DTCS B1810 To P0196
- Diagnosis And Testing
- B1810-Driver Door Ajar Input Circuit Low
- B1811-Driver Door Ajar Input Circuit High
- B23BB-Stop/Start Disable Switch 1 Circuit Open
- B23BD-Stop/Start Disable Switch 1 Circuit Low
- B23BE-Stop/Start Disable Switch 1 Circuit High
- B23BF-Stop/Start Disable Switch 2 Circuit Open
- B23C1-Stop/Start Disable Switch 2 Circuit Low
- B23C2-Stop/Start Disable Switch 2 Circuit High
- B23C3-Stop/Start Disable Switch 1/2 Correlation
- B25BC-Left Front Door Ajar Switch Stuck Closed
- B25C7-Driver Door Ajar Switch 2 Circuit Low
- B25C8-Driver Door Ajar Switch 2 Circuit High
- B25C9-Driver Door Ajar Switch 2 Stuck Closed
- B25CB-Driver Door Ajar Switch 1/Driver Door Ajar Switch 2 Correlation
- C0061-Lateral Acceleration Sensor
- C0062-Longitudinal Acceleration Sensor
- C0501-Wheel Speed Signal Left Front Rationality
- C0507-Wheel Speed Signal Right Front Rationality
- C050D-Wheel Speed Signal Left Rear Rationality
- C0513-Wheel Speed Signal Right Rear Rationality
- C0572-Master Cylinder Pressure Sensor Circuit High
- C10D0-Electronic Park Brake System Failure
- C2316-Terrain Switch No Subtype Information
- P0016-Crankshaft/Camshaft Timing Misalignment - Bank 1 Sensor 1
- P0031-O2 Sensor 1/1 Heater Circuit Low
- P0032-O2 Sensor 1/1 Heater Circuit High
- P0037-O2 Sensor 1/2 Heater Circuit Low
- P0038-O2 Sensor 1/2 Heater Circuit High
- P0069-Manifold Pressure/Barometric Pressure Correlation
- P0071-Ambient Air Temperature Sensor Performance
- P0072-Ambient Air Temperature Sensor Circuit Low
- P0073-Ambient Air Temperature Sensor Circuit High
- P00FD-Battery "B" State Of Charge Performance
- P0107-Manifold Absolute Pressure Sensor Circuit Low
- P0108-Manifold Absolute Pressure Sensor Circuit High
- P0111-Intake Air Temperature Sensor 1 Performance
- P0112-Intake Air Temperature Sensor 1 Circuit Low
- P0113-Intake Air Temperature Sensor 1 Circuit High
- P0116-Engine Coolant Temperature Sensor 1 Performance
- P0117-Engine Coolant Temperature Sensor Circuit Low
- P0118-Engine Coolant Temperature Sensor 1 Circuit High
- P0121-Throttle Position Sensor 1 Performance
- P0122-Throttle Position Sensor 1 Circuit Low
- P0123-Throttle Position Sensor 1 Circuit High
- P0125-Insufficient Coolant Temp For Closed - Loop Fuel Control
- P0128-Thermostat Rationality
- P0129-Barometric Pressure Out Of Range Low
- P0133-O2 Sensor 1/1 Slow Response
- P0135-O2 Sensor 1/1 Heater Performance
- P0137-O2 Sensor 1/2 Circuit Low
- P0138-O2 Sensor 1/2 Circuit High
- P0139-O2 Sensor 1/2 Slow Response
- P0140-O2 Sensor 1/2 Signal Inactive
- P0141-O2 Sensor 1/2 Heater Performance
- P0171-Fuel System 1/1 Lean
- P0172-Fuel System 1/1 Rich
- P0196-Engine Oil Temperature Sensor Performance
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.