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Vehicle Safety

Vehicle Recalls320,000+ NHTSA safety recalls Browse VehiclesEvery make, model and year Complaints2.1M+ consumer safety complaints TSBs4.7M technical service bulletins VIN LookupDecode any vehicle VIN instantly OBD Codes12,000+ diagnostic trouble codes Fuel EconomyEPA MPG data for all vehicles Safety Ratings11,700+ NHTSA crash test ratings Investigations5,300+ NHTSA defect investigations StatisticsRecall trends & safety analysis Compare VehiclesTwo vehicles side by side

Consumer Safety

Product Safety9,700+ CPSC product recalls Food Safety28,600+ FDA food recalls Pet Safety1.3M FDA animal adverse events Drug Safety17,500+ FDA drug recalls Device Safety38,400+ FDA device recalls Workplace Safety102,900+ OSHA injury reports Brand HistoryRecall lookup by company

Infrastructure

Bridge Safety624,000 bridge inspections Aviation Safety30,000+ NTSB aviation events Dam Safety92,600 dam safety records Water Safety433,000+ public water systems Railroad Safety438,000+ rail crossings Pipeline Safety8,800+ pipeline incidents State DashboardsSafety grades for all 50 states ZIP ReportAny 5-digit ZIP across 9 datasets

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Computer Codes

427 OBD-II diagnostic trouble codes in this category.

Showing page 5 of 5 (427 codes total)

Code Description Subsystem Severity
P2E7C A/C Compressor Control Module Internal Temperature Sensor B Circuit Powertrain Control Medium
P2E7D A/C Compressor Control Module Internal Temperature Sensor B Performance Powertrain Control Medium
P2E7E A/C Compressor Control Module Internal Temperature Sensor B Circuit High Powertrain Control Medium
P2E7F A/C Compressor Control Module Internal Temperature Sensor B Circuit Low Powertrain Control Medium
P2E80 A/C Compressor Control Module InternalTemperature Sensor B Circuit Intermittent/Erratic Powertrain Control Medium
P2E81 Cold Start Engine Coolant Bypass Valve D Stuck Closed Powertrain Control Medium
P2E82 Cold Start Engine Coolant Pump Overspeed Powertrain Control Medium
P2E87 Proximity Detection Circuit B Powertrain Control Medium
P2E88 Proximity Detection Circuit B Range/Performance Powertrain Control Medium
P2E89 Proximity Detection Circuit B Low Powertrain Control Medium
P2E8A Proximity Detection Circuit B High Powertrain Control Medium
P2E8B Proximity Detection Circuit B Intermittent/Erratic Powertrain Control Medium
P2E92 Charge Port Door B Open Request Switch Wake-Up Circuit Powertrain Control Medium
P2E93 Charge Port Door B Open Request Switch Circuit Powertrain Control Medium
P2E94 Charge Port Door B Open Request Switch Circuit Performance Powertrain Control Medium
P2E95 Charge Port Door B Open Request Switch Circuit Low Powertrain Control Medium
P2E96 Charge Port Door B Open Request Switch Circuit High Powertrain Control Medium
P2E97 Charge Port Door B Open Request Switch Circuit Intermittent/Erratic Powertrain Control Medium
P2E98 Charge Port Door B Position Sensor Circuit Powertrain Control Medium
P2E99 Charge Port Door B Position Sensor Circuit Performance Powertrain Control Medium
P2E9A Charge Port Door B Position Sensor Circuit Low Powertrain Control Medium
P2E9B Charge Port Door B Position Sensor Circuit High Powertrain Control Medium
P2E9C Charge Port Door B Position Sensor Circuit Intermittent/Erratic Powertrain Control Medium
P2E9D Charge Port Door B Unlock Control Circuit Powertrain Control Medium
P2E9E Charge Port Door B Unlock Control Circuit Performance Powertrain Control Medium
P2E9F Charge Port Door B Unlock Control Circuit Low Powertrain Control Medium
P3100 High voltage powertrain control module failure (Audi) Charging System Medium
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All OBD-II Categories

About Computer Codes

This page lists all 427 OBD-II diagnostic trouble codes classified under the Computer category. These codes are stored by your vehicle's onboard computer when a sensor detects a malfunction in the computer system. Each code begins with a letter indicating the system (P for Powertrain, B for Body, C for Chassis, U for Network) followed by four digits that identify the specific fault.

When your check engine light comes on, an OBD-II scanner reads these stored codes to help pinpoint the problem. Generic codes (where the second digit is 0) follow the SAE J2012 standard and mean the same thing on every vehicle. Manufacturer-specific codes (where the second digit is 1) may have different meanings depending on the vehicle brand.

Click any code in the table above to see its full description, possible causes, common symptoms, and step-by-step repair guidance. Use the search box to quickly find a specific code within this category.