Diagnostic library

Find an OBD2 code

Search the code from your scanner, then narrow the library by system, severity, or code family.

9,253 diagnostic guides

Sort

Find codes by symptomChoose what you notice to search matching code guides.

Rough idle or shakingVibration while stopped Hard to startLong cranking or no-start Engine stallsCuts out at idle or on the road Hesitates or loses powerSlow response when accelerating Battery light is onCharging system warning Harsh gear changesDelayed or rough shifting

A symptom can have several causes. Treat matching codes as clues and follow the diagnostic checks in each guide.

Transmission Issues Clear all

Quick browse

Choose a vehicle system

Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

FiltersSeverity · family

Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

Vehicle coverage

These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 769–792 of 866

Most searched first

P2885Engine Disconnect Clutch Engagement FaultCheck soonTransmission Issues30–120 minutes for initial diagnosisP2885 relates to engine disconnect clutch engagement fault. Check the fault conditions and vehicle-specific procedure before replacing parts.P2886Engine Disconnect Clutch Stuck ClosedCheck soonTransmission Issues30–120 minutes for initial diagnosisP2886 relates to engine disconnect clutch stuck closed. Check the fault conditions and vehicle-specific procedure before replacing parts.P288CEngine Disconnect Clutch Actuator Control Circuit Driver Current/Temperature Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP288C relates to engine disconnect clutch actuator control circuit driver current/temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P288DShift Fork B Calibration Not LearnedCheck soonTransmission Issues30–120 minutes for initial diagnosisP288D relates to shift fork b calibration not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P288EShift Fork “A” Actuator Control Circuit Driver Current/Temperature Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP288E relates to shift fork “a” actuator control circuit driver current/temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P288FShift Fork “B” Actuator Control Circuit Driver Current/Temperature Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP288F relates to shift fork “b” actuator control circuit driver current/temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P28C4Clutch A Motor Phase U-V-W Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP28C4 relates to clutch a motor phase u-v-w circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P28C5Clutch A Motor Phase U-V-W Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP28C5 relates to clutch a motor phase u-v-w circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P28C6Clutch A Motor Phase U-V-W Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP28C6 relates to clutch a motor phase u-v-w circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P28C7Clutch A Motor Phase U-V-W PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP28C7 relates to clutch a motor phase u-v-w performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P28C8Clutch A Pump Motor PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP28C8 relates to clutch a pump motor performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P28C9Clutch A Motor OverspeedUrgentTransmission Issues30–120 minutes for initial diagnosisP28C9 relates to clutch a motor overspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P28CAClutch A Motor UnderspeedCheck soonTransmission Issues30–120 minutes for initial diagnosisP28CA relates to clutch a motor underspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P28CBClutch A Motor Position Sensor Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP28CB relates to clutch a motor position sensor circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P28CCClutch A Motor Position Sensor Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP28CC relates to clutch a motor position sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P28CDClutch A Pressure Sensor Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP28CD relates to clutch a pressure sensor circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P28CEClutch A Pressure Sensor Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP28CE relates to clutch a pressure sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P28CFClutch A Pressure Sensor Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP28CF relates to clutch a pressure sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P28D0Clutch A Pressure Sensor Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP28D0 relates to clutch a pressure sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P28D1Clutch A Motor Driver Current/Temperature Too HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP28D1 relates to clutch a motor driver current/temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P28D2Clutch B Motor Phase U-V-W Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP28D2 relates to clutch b motor phase u-v-w circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P28D3Clutch B Motor Phase U-V-W Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP28D3 relates to clutch b motor phase u-v-w circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P28D4Clutch B Motor Phase U-V-W Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP28D4 relates to clutch b motor phase u-v-w circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P28D5Clutch B Motor Phase U-V-W PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP28D5 relates to clutch b motor phase u-v-w performance. Check the fault conditions and vehicle-specific procedure before replacing parts.