Fault codes P2Bxx: engine and emissions: additional codes (2)
Engine and transmission codes common to all makes (SAE J2012 standard).
Official codes: 256, from smallest to largest. Tap a code to get a direct link to share.
| Code | Meaning |
|---|---|
| P2B00 | Cylinder 1 Injection Pulse Performance |
| P2B01 | Cylinder 2 Injection Pulse Performance |
| P2B02 | Cylinder 3 Injection Pulse Performance |
| P2B03 | Cylinder 4 Injection Pulse Performance |
| P2B04 | Cylinder 5 Injection Pulse Performance |
| P2B05 | Cylinder 6 Injection Pulse Performance |
| P2B06 | Cylinder 7 Injection Pulse Performance |
| P2B07 | Cylinder 8 Injection Pulse Performance |
| P2B08 | Cold Start Cylinder 1 Injection Pulse Performance |
| P2B09 | Cold Start Cylinder 2 Injection Pulse Performance |
| P2B0A | Cold Start Cylinder 3 Injection Pulse Performance |
| P2B0B | Cold Start Cylinder 4 Injection Pulse Performance |
| P2B0C | Cold Start Cylinder 5 Injection Pulse Performance |
| P2B0D | Cold Start Cylinder 6 Injection Pulse Performance |
| P2B0E | Cold Start Cylinder 7 Injection Pulse Performance |
| P2B0F | Cold Start Cylinder 8 Injection Pulse Performance |
| P2B10 | Cylinder 1 Injection Pulse Offset Not Learned |
| P2B11 | Cylinder 1 Injection Pulse Offset Exceeded Learning Limit |
| P2B12 | Cylinder 2 Injection Pulse Offset Not Learned |
| P2B13 | Cylinder 2 Injection Pulse Offset Exceeded Learning Limit |
| P2B14 | Cylinder 3 Injection Pulse Offset Not Learned |
| P2B15 | Cylinder 3 Injection Pulse Offset Exceeded Learning Limit |
| P2B16 | Cylinder 4 Injection Pulse Offset Not Learned |
| P2B17 | Cylinder 4 Injection Pulse Offset Exceeded Learning Limit |
| P2B18 | Cylinder 5 Injection Pulse Offset Not Learned |
| P2B19 | Cylinder 5 Injection Pulse Offset Exceeded Learning Limit |
| P2B1A | Cylinder 6 Injection Pulse Offset Not Learned |
| P2B1B | Cylinder 6 Injection Pulse Offset Exceeded Learning Limit |
| P2B1C | Cylinder 7 Injection Pulse Offset Not Learned |
| P2B1D | Cylinder 7 Injection Pulse Offset Exceeded Learning Limit |
| P2B1E | Cylinder 8 Injection Pulse Offset Not Learned |
| P2B1F | Cylinder 8 Injection Pulse Offset Exceeded Learning Limit |
| P2B20 | Hybrid/EV Electronics Coolant Temperature Sensor B Circuit |
| P2B21 | Hybrid/EV Electronics Coolant Temperature Sensor B Range/Performance |
| P2B22 | Hybrid/EV Electronics Coolant Temperature Sensor B Circuit Low |
| P2B23 | Hybrid/EV Electronics Coolant Temperature Sensor B Circuit High |
| P2B24 | Hybrid/EV Electronics Coolant Temperature Sensor C Circuit |
| P2B25 | Hybrid/EV Electronics Coolant Temperature Sensor C Range/Performance |
| P2B26 | Hybrid/EV Electronics Coolant Temperature Sensor C Circuit Low |
| P2B27 | Hybrid/EV Electronics Coolant Temperature Sensor C Circuit High |
| P2B28 | Hybrid/EV Battery Pack Coolant Pump A Performance |
| P2B29 | Hybrid/EV Battery Pack Coolant Pump A Overspeed - Dry Run |
| P2B2A | Hybrid/EV Electronics Coolant Pump A Overspeed - Dry Run |
| P2B2B | Engine Coolant Temperature Sensor 5 Circuit |
| P2B2C | Engine Coolant Temperature Sensor 5 Range/Performance |
| P2B2D | Engine Coolant Temperature Sensor 5 Circuit Low |
| P2B2E | Engine Coolant Temperature Sensor 5 Circuit High |
| P2B2F | Fan 1 Performance/Stuck Off |
| P2B30 | Fan 1 Stuck On |
| P2B31 | Fan 2 Performance/Stuck Off |
| P2B32 | Fan 2 Stuck On |
| P2B33 | A Camshaft Profile Actuator B Control Circuit/Open Bank 1 |
| P2B34 | A Camshaft Profile Actuator B Control Circuit Low Bank 1 |
| P2B35 | A Camshaft Profile Actuator B Control Circuit High Bank 1 |
| P2B36 | A Camshaft Profile Actuator B Control Circuit/Open Bank 2 |
| P2B37 | A Camshaft Profile Actuator B Control Circuit Low Bank 2 |
| P2B38 | A Camshaft Profile Actuator B Control Circuit High Bank 2 |
| P2B39 | B Camshaft Profile Actuator B Control Circuit/Open Bank 1 |
| P2B3A | B Camshaft Profile Actuator B Control Circuit Low Bank 1 |
| P2B3B | B Camshaft Profile Actuator B Control Circuit High Bank 1 |
| P2B3C | B Camshaft Profile Actuator B Control Circuit/Open Bank 2 |
| P2B3D | B Camshaft Profile Actuator B Control Circuit Low Bank 2 |
| P2B3E | B Camshaft Profile Actuator B Control Circuit High Bank 2 |
| P2B3F | A Camshaft Position Actuator Position Sensor B Circuit Bank 1 |
| P2B40 | A Camshaft Position Actuator Position Sensor B Range/Performance Bank 1 |
| P2B41 | A Camshaft Position Actuator Position Sensor B Circuit Low Bank 1 |
| P2B42 | A Camshaft Position Actuator Position Sensor B Circuit High Bank 1 |
| P2B43 | A Camshaft Position Actuator Position Sensor B Circuit Bank 2 |
| P2B44 | A Camshaft Position Actuator Position Sensor B Range/Performance Bank 2 |
| P2B45 | A Camshaft Position Actuator Position Sensor B Circuit Low Bank 2 |
| P2B46 | A Camshaft Position Actuator Position Sensor B Circuit High Bank 2 |
| P2B47 | B Camshaft Position Actuator Position Sensor B Circuit Bank 1 |
| P2B48 | B Camshaft Position Actuator Position Sensor B Range/Performance Bank 1 |
| P2B49 | B Camshaft Position Actuator Position Sensor B Circuit Low Bank 1 |
| P2B4A | B Camshaft Position Actuator Position Sensor B Circuit High Bank 1 |
| P2B4B | B Camshaft Position Actuator Position Sensor B Circuit Bank 2 |
| P2B4C | B Camshaft Position Actuator Position Sensor B Range/Performance Bank 2 |
| P2B4D | B Camshaft Position Actuator Position Sensor B Circuit Low Bank 2 |
| P2B4E | B Camshaft Position Actuator Position Sensor B Circuit High Bank 2 |
| P2B4F | A Camshaft Profile Actuator B Control Performance/Stuck Off Bank 1 |
| P2B50 | A Camshaft Profile Actuator B Control Performance/Stuck Off Bank 2 |
| P2B51 | B Camshaft Profile Actuator B Control Performance/Stuck Off Bank 1 |
| P2B52 | B Camshaft Profile Actuator B Control Performance/Stuck Off Bank 2 |
| P2B53 | A Camshaft Profile Actuator B Control Stuck On Bank 1 |
| P2B54 | A Camshaft Profile Actuator B Control Stuck On Bank 2 |
| P2B55 | B Camshaft Profile Actuator B Control Stuck On Bank 1 |
| P2B56 | B Camshaft Profile Actuator B Control Stuck On Bank 2 |
| P2B57 | Low Engine Oil Pressure - Camshaft Control Disabled |
| P2B58 | Engine Coolant Flow Control Valve Motor Current High |
| P2B59 | Engine Coolant Flow Control Valve Control Circuit/Open |
| P2B5A | Engine Coolant Flow Control Valve Control Circuit Low |
| P2B5B | Engine Coolant Flow Control Valve Control Circuit High |
| P2B5C | Engine Coolant Flow Control Valve Supply Circuit Low |
| P2B5D | Engine Coolant Flow Control Valve Position Sensor Circuit |
| P2B5E | Engine Coolant Flow Control Valve Position Sensor Circuit Low |
| P2B5F | Engine Coolant Flow Control Valve Position Sensor Circuit High |
| P2B60 | Engine Coolant Flow Control Valve Position Sensor Circuit Range/Performance |
| P2B61 | Engine Coolant Flow Control Valve Stuck Closed |
| P2B62 | Coolant Pump B Supply Voltage Circuit |
| P2B63 | Coolant Pump B Stuck/Stalled |
| P2B64 | Coolant Pump B Control Module Overtemperature |
| P2B65 | Coolant Pump B Overspeed/Air in System |
| P2B66 | Coolant Pump D Control Circuit/Open |
| P2B67 | Coolant Pump D Control Circuit Low |
| P2B68 | Coolant Pump D Control Circuit High |
| P2B69 | Coolant Pump D Supply Voltage Circuit |
| P2B6A | Coolant Pump D Stuck/Stalled |
| P2B6B | Coolant Pump D Control Module Overtemperature |
| P2B6C | Coolant Pump D Overspeed/Air in System |
| P2B6D | Engine Coolant Flow Control Valve Position Sensor Circuit Intermittent/Erratic |
| P2B6E | Turbocharger/Supercharger A Temperature Sensor Circuit |
| P2B6F | Turbocharger/Supercharger A Temperature Sensor Circuit Low |
| P2B70 | Turbocharger/Supercharger A Temperature Sensor Circuit High |
| P2B71 | Turbocharger/Supercharger A Temperature Sensor Range/Performance |
| P2B72 | Coolant Heater A Control Circuit/Open |
| P2B73 | Coolant Heater A Control Circuit Low |
| P2B74 | Coolant Heater A Control Circuit High |
| P2B75 | Coolant Heater A Control Circuit Performance |
| P2B76 | Coolant Heater B Control Circuit/Open |
| P2B77 | Coolant Heater B Control Circuit Low |
| P2B78 | Coolant Heater B Control Circuit High |
| P2B79 | Coolant Heater B Control Circuit Performance |
| P2B7A | EVAP System Pressure Sensor/Switch C Circuit |
| P2B7B | EVAP System Pressure Sensor/Switch C Circuit Range/Performance |
| P2B7C | EVAP System Pressure Sensor/Switch C Circuit Low |
| P2B7D | EVAP System Pressure Sensor/Switch C Circuit High |
| P2B7E | EVAP System Pressure Sensor/Switch C Circuit Intermittent |
| P2B7F | Turbocharger/Supercharger Boost Control Module A Calibration Not Learned/Programmed |
| P2B80 | Turbocharger/Supercharger Boost Control Module B Calibration Not Learned/Programmed |
| P2B81 | Wastegate Position Sensor A Circuit Performance |
| P2B82 | Wastegate Position Sensor B Circuit Performance |
| P2B83 | Charge Air Cooler Coolant Pump A Overspeed/Air In System |
| P2B84 | Charge Air Cooler Coolant Pump A Underspeed |
| P2B85 | Engine Coolant Pump Underspeed |
| P2B86 | Coolant Pump A Overspeed/Air in System |
| P2B87 | Coolant Pump A Underspeed |
| P2B88 | Intake Air O2 Sensor Circuit Bank 1 |
| P2B89 | Intake Air O2 Sensor Circuit Low Voltage Bank 1 |
| P2B8A | Intake Air O2 Sensor Circuit High Voltage Bank 1 |
| P2B8B | Intake Air O2 Sensor Heater Control Circuit/Open Bank 1 |
| P2B8C | Intake Air O2 Sensor Heater Control Circuit Range/Performance Bank 1 |
| P2B8D | Intake Air O2 Sensor Heater Control Circuit Low Bank 1 |
| P2B8E | Intake Air O2 Sensor Heater Control Circuit High Bank 1 |
| P2B8F | Turbocharger/Supercharger B Temperature Sensor Circuit |
| P2B90 | Turbocharger/Supercharger B Temperature Sensor Circuit Low |
| P2B91 | Turbocharger/Supercharger B Temperature Sensor Circuit High |
| P2B92 | Turbocharger/Supercharger B Temperature Sensor Range/Performance |
| P2B93 | Wastegate Position Sensor A Exceeded Learning Limit |
| P2B94 | Wastegate Position Sensor B Exceeded Learning Limit |
| P2B95 | Cold Start Injection Pulse Performance |
| P2B96 | Injection Pulse Performance |
| P2B97 | Exhaust Pressure Control Valve A Position Exceeded Learning Limit |
| P2B98 | Exhaust Pressure Control Valve A Supply Low |
| P2B99 | Exhaust Pressure Control Valve A Driver Current/Temperature Too High |
| P2B9A | Reductant Quality Sensor Circuit Intermittent/Erratic |
| P2B9B | Vehicle Conditions Incorrect for Particulate Matter Sensor Regeneration |
| P2B9C | Coolant Pump A Stuck/Stalled |
| P2B9D | Coolant Pump A Supply Voltage Circuit |
| P2B9E | Coolant Pump A Control Module Overtemperature |
| P2B9F | Coolant Pump B Underspeed |
| P2BA0 | Coolant Pump C Underspeed |
| P2BA1 | Coolant Pump D Underspeed |
| P2BA2 | Engine Coolant Pump Stuck/Stalled |
| P2BA3 | Starter/Generator Mechanical Performance |
| P2BA4 | Catalyst Feedgas Performance |
| P2BA5 | Particulate Filter Feedgas Performance |
| P2BA6 | NOx Exceedance - SCR NOx Catalyst Performance |
| P2BA7 | NOx Exceedence - Empty Reagent Tank |
| P2BA8 | NOx Exceedence - Interruption of Reagent Dosing Activity |
| P2BA9 | NOx Exceedence — Insufficient Reagent |
| P2BAA | NOx Sensor Range/Performance (Bank 1, Sensor 1) |
| P2BAB | NOx Exceedence — Reagent System Performance |
| P2BAC | NOx Exceedence - Insufficient Reagent Quality |
| P2BAD | NOx Exceedence - Insufficient Reagent Consumption |
| P2BAE | NOx Exceedence - EGR System |
| P2BAF | NOx Sensor Heater Sense Circuit Range/Performance Bank 1 Sensor 1 |
| P2BB0 | Alternative Fuel Consumption Too Low |
| P2BB1 | Alternative Fuel Consumption Too High |
| P2BB2 | Alternative Fuel Tank Empty |
| P2BB3 | Fuel Pump Secondary Circuit Performance |
| P2BB4 | Engine Coolant Temperature Sensor 4 Circuit Intermittent/Erratic |
| P2BB5 | Engine Coolant Temperature Sensor 5 Circuit Intermittent/Erratic |
| P2BB6 | Engine Coolant Temperature Sensor 6 Circuit |
| P2BB7 | Engine Coolant Temperature Sensor 6 Range/Performance |
| P2BB8 | Engine Coolant Temperature Sensor 6 Circuit Low |
| P2BB9 | Engine Coolant Temperature Sensor 6 Circuit High |
| P2BBA | Engine Coolant Temperature Sensor 6 Circuit Intermittent/Erratic |
| P2BBB | Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit |
| P2BBC | Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit Low |
| P2BBD | Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit High |
| P2BBE | Turbocharger/Supercharger Bypass Valve A Position Exceeded Learning Limit |
| P2BBF | Turbocharger/Supercharger Bypass Valve A Supply Voltage Low |
| P2BC0 | Turbocharger/Supercharger Bypass Valve A Driver Current/Temperature Too High |
| P2BC1 | Charge Air Cooler Coolant Pump A Stuck/Stalled |
| P2BC2 | Charge Air Cooler Coolant Pump A Supply Voltage Circuit |
| P2BC3 | Charge Air Cooler Coolant Pump A Control Module Overtemperature |
| P2BC4 | Battery Charging System Positive Contactor B Circuit |
| P2BC5 | Battery Charging System Positive Contactor B Stuck Closed |
| P2BC6 | Battery Charging System Positive Contactor B Stuck Open |
| P2BC7 | Battery Charging System Positive Contactor B Control Circuit/Open |
| P2BC8 | Battery Charging System Positive Contactor B Control Circuit Range/Performance |
| P2BC9 | Battery Charging System Positive Contactor B Control Circuit Low |
| P2BCA | Battery Charging System Positive Contactor B Control Circuit High |
| P2BCB | Battery Charging System Negative Contactor B Circuit |
| P2BCC | Battery Charging System Negative Contactor B Stuck Closed |
| P2BCD | Battery Charging System Negative Contactor B Stuck Open |
| P2BCE | Battery Charging System Negative Contactor B Control Circuit/Open |
| P2BCF | Battery Charging System Negative Contactor B Control Circuit Range/Performance |
| P2BD0 | Battery Charging System Negative Contactor B Control Circuit Low |
| P2BD1 | Battery Charging System Negative Contactor B Control Circuit High |
| P2BD2 | Exhaust Aftertreatment System A Leak |
| P2BD3 | Exhaust Aftertreatment System B Leak |
| P2BD4 | Motor Electronics Coolant Pump C Control Circuit/Open |
| P2BD5 | Motor Electronics Coolant Pump C Control Circuit Low |
| P2BD6 | Motor Electronics Coolant Pump C Control Circuit High |
| P2BD7 | Motor Electronics Coolant Pump C Control Performance |
| P2BD8 | Motor Electronics Coolant Temperature Sensor B Circuit |
| P2BD9 | Motor Electronics Coolant Temperature Sensor B Range/Performance |
| P2BDA | Motor Electronics Coolant Temperature Sensor B Circuit Low |
| P2BDB | Motor Electronics Coolant Temperature Sensor B Circuit High |
| P2BDC | Motor Electronics Coolant Temperature Sensor C Circuit |
| P2BDD | Motor Electronics Coolant Temperature Sensor C Range/Performance |
| P2BDE | Motor Electronics Coolant Temperature Sensor C Circuit Low |
| P2BDF | Motor Electronics Coolant Temperature Sensor C Circuit High |
| P2BE0 | Hybrid/EV Battery Coolant Level Sensor Circuit/Open |
| P2BE1 | Hybrid/EV Battery Coolant Level Sensor Range/Performance |
| P2BE2 | Hybrid/EV Battery Coolant Level Sensor Circuit Low |
| P2BE3 | Hybrid/EV Battery Coolant Level Sensor Circuit High |
| P2BE4 | Hybrid/EV Battery Pack Current Sensor C Circuit |
| P2BE5 | Hybrid/EV Battery Pack Current Sensor C Circuit Range/Performance |
| P2BE6 | Hybrid/EV Battery Pack Current Sensor C Low |
| P2BE7 | Hybrid/EV Battery Pack Current Sensor C High |
| P2BE8 | Hybrid/EV Battery Precharge Contactor Control Circuit B Open |
| P2BE9 | Hybrid/EV Battery Precharge Contactor Control Circuit B Range/Performance |
| P2BEA | Hybrid/EV Battery Precharge Contactor Control Circuit B Low |
| P2BEB | Hybrid/EV Battery Precharge Contactor Control Circuit B High |
| P2BEC | Fuel Control System A Too Lean Bank 1 |
| P2BED | Fuel Control System A Too Rich Bank 1 |
| P2BEE | Fuel Control System A Too Lean Bank 2 |
| P2BEF | Fuel Control System A Too Rich Bank 2 |
| P2BF0 | Fuel Control System B Too Lean Bank 1 |
| P2BF1 | Fuel Control System B Too Rich Bank 1 |
| P2BF2 | Fuel Control System B Too Lean Bank 2 |
| P2BF3 | Fuel Control System B Too Rich Bank 2 |
| P2BF4 | Exhaust Flow Control Valve A Position Circuit |
| P2BF5 | Exhaust Flow Control Valve A Position Circuit Range/Performance |
| P2BF6 | Exhaust Flow Control Valve A Position Circuit Low |
| P2BF7 | Exhaust Flow Control Valve A Position Circuit High |
| P2BF8 | Exhaust Flow Control Valve B Control Circuit/Open |
| P2BF9 | Exhaust Flow Control Valve B Control Circuit Low |
| P2BFA | Exhaust Flow Control Valve B Control Circuit High |
| P2BFB | Exhaust Flow Control Valve B Control Performance |
| P2BFC | Exhaust Flow Control Valve B Position Circuit |
| P2BFD | Exhaust Flow Control Valve B Position Circuit Range/Performance |
| P2BFE | Exhaust Flow Control Valve B Position Circuit Low |
| P2BFF | Exhaust Flow Control Valve B Position Circuit High |
To understand a code on your car (probable causes, what to check first), the DiagAuto AI app explains it using AI. Discover the app
Official meanings: OBDex (public domain, CC0). Manufacturer codes: dtc-database (MIT license), probable meanings not verified by the manufacturers. The same meaning can vary depending on the model: always have a diagnosis confirmed by a professional.