B Body Code Fixes
- B1000, Airbag light on GM vehicles
- Body Codes–GM specific
- Daytime Running Lights Inoperative, DRL indicator flashes B2600
- DTC B2960 Buick Regal or Century dies when turn signals are used
- No Heater or AC control or defaults to defrost–GM Trucks
C Chassis Code Fixes
- ABS Code C0040—GM and Saab Vehicles
- ABS Codes C1235 and C1236 on Ford Explorer
- ABS light on GM vehicles
- C1223 and C1225 ABS Traction Control Light On—Cavalier and Sunfire vehicles
- Zillions of ABS Codes—What’s going on here?
P Code Definitions
- P0720 Output Speed Sensor Circuit Malfunction
- Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
- P0100 Mass or Volume Air Flow Circuit Malfunction
- P0101 Mass or Volume Air Flow Circuit Low Input
- P0101 Mass or Volume Air Flow Circuit Range/Performance Problem
- P0103 Mass or Volume Air Flow Circuit High Input
- P0104 Mass or Volume Air Flow Circuit Intermittent
- P0105 Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
- P0106 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
- P0106 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
- P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low
- P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- P0109 Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent
- P0110 Intake Air Temperature Circuit Malfunction
- P0125 OBDII Trouble Code Definition Insufficient Coolant Temperature For Closed Loop Fuel Control
- P0133 Oxygen Sensor Circuit Slow Response Bank 1 Sensor 1
- P0171 System too lean (Bank 1)
- P0172 System too Rich (Bank 1)
- P0174 System Too Lean (Bank 2)
- P0175 System too Rich (Bank 2)
- P0175 System too Rich (Bank 2)
- P0316 Serious misfire in first 1,000 engine revolutions
- P0340 Camshaft Position Sensor Circuit Malfunction
- P0340 Camshaft Position Sensor Circuit Malfunction
- P0344 Camshaft Position Sensor Circuit Intermittent
- P0351 – P0362 Ignition Coil A-L Primary , Secondary Circuit Malfunction
- P0400 Exhaust Gas Recirculation Flow Malfunction
- P0401 Insufficient EGR Flow
- P0404 Exhaust Gas Recirculation (EGR) Circuit Range Performance
- P0405 Exhaust Gas Recirculation (EGR) A Circuit Low
- P0406 Exhaust Gas Recirculation (EGR) A Circuit High
- P0420 Catalyst System Efficiency Below Threshold (Bank 1)
- P0430 Catalyst System Efficiency Below Threshold (Bank 2)
- P0440 Evaporative Emission Control System Malfunction
- P0442 Evaporative Emission Control System Leak (Small leak)
- P0443 Evaporative Emission Control System Purge Control Valve Circuit Malfunction
- P0446 Evaporative Emission Control System Vent Control Circuit Malfunction
- P0451 Evaporative Emission Control System Pressure Sensor Range/Performance
- P0455 Evaporative Emission Control System Leak Detected (Gross Leak)
- P0456 EVAP System Small Leak (0.020″) Detected
- P0495 GM vehicles – Definition
- P0507 Idle Control System RPM Higher Than Expected
- P0522 Engine Oil Pressure Sensor Switch Circuit Low Voltage
- P0551 Power Steering Pressure Switch Malfunction
- P0605 Internal Control Module Read Only Memory ROM) Error
- P0705 Transaxle range switch circuit malfunction (PRND321)
- P0707 Transaxle range switch circuit malfunction (inhibitor switch) open/shorted; low voltage
- P0708 Transmission range switch Kia
- P0716 Input Turbine Speed Sensor Circuit Range Performance
- P0717 Input Turbine Speed Sensor Circuit No Signal
- P1408 EGR out of self test range
- P1443 Evaporative Emission Control System Vacuum System – Purge Control Valve Solenoid or Purge Control Valve fault Malfunction
- P1444 Purge Flow Sensor Circuit Input Low
- P1445 Purge Flow Sensor Circuit Input High
- P1456 Leak detected in EVAP Control system
- P1489 High Speed Fan CTRL Relay Circuit
- P1491 Radiator Fan Control Relay Circuit
- P1494 EVAP Leak Detection Pump Switch or Mechanical Fault
- P1684 Battery Disconnected or Voltage has Dropped Below 9 volts. (Chrysler vehicles)
- P2122 Accelerator Position Sensor (APS #1 SUB) Circuit Low Voltage Hyundai specific
- P2123 Accelerator Position Sensor (APS #1 SUB) Circuit High Voltage Hyundai Specific
- P2135 Throttle Position Sensor (TPS) Property Malfunction
- P2195 Oxygen air fuel Sensor Signal Stuck Lean Bank 1, Sensor 1
- P2197 Oxygen air fuel sensor signal stuck lean Bank 2, Sensor 1
- P2279 Intake Air System Leak – Acura
P Powertrain Code Fixes
- Chrysler P0720 Output Speed Sensor Circuit Malfunction
- Dodge Caliber SRT4 check engine light
- Ford Ranger Misfire Codes P0300, P0301, P0302, P0303, P0304, P0305, P0306, and P0316
- Low Oil Pressure—Dodge Ram/Durango/Aspen/Jeep Grand Cherokee/Commander
- P0120, P0220, P1516 – Chevrolet Tahoe 5.3L
- P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control
- P0128 and temperature gauge dead – GM vehicles
- P0133, P0171, P0555 Multiple Trouble Codes – Dodge Truck
- P0171 on Ford Focus
- P0171, P0174, P2195, P2197 codes on Camry or Solara
- P0179 on GM Flex Fuel Vehicles
- P0300 trouble code or random Misfires on High Mileage GM 4.3 Engines with Distributors
- P0301, P0302, P0303, P0304 Subaru misfire trouble codes
- P0340 on Ford 7.3L diesel, Crank but no start, bucking
- P0340, P0344, P0172, P0175 codes and hard start, low power on Expedition and Navigator
- P0351, P0352, P0354, P0355, P0356 – Misfire Codes under load or acelleration on Ford Escape 3.0L
- P0400 EGR Malfunction Nissan Altima
- P0400 on Ford and Mercury Vehicles
- P0401 EGR Code on Dodge Caravan, Plymouth Voyager, Town and Country 3.3L and 3.8L
- P0401 on Ford Vehicles
- P0405, P0406, False EGR codes – Dodge Trucks, Jeep
- P0420 Code after Catalytic Converter Replacement
- P0440 Evap Leak code on Toyota after air filter check or replacement
- P0442 EVAP Leak Chrysler Vehicles
- P0442, P0455, P0456 Enhanced Evaporative Emissions on Ford Vehicles
- P0443, P1443, P1444, P1445 on Ford Ranger, EVAP codes
- P0446 Code on Cadillac, Chevrolet, & GMC Full-Size Utility Trucks
- P0446 Toyota EVAP vent solenoid
- P0446 Vent Issue, Premature fuel fill shutoff — Equinox, Saturn
- P0451, P0452, P0453, or P01454 trouble codes on Honda vehicles.
- P0456 EVAP System Small Leak Chrysler vehicles
- P0480 and Cooling Fan Inoperative – Caravan, Voyager, Town and Country
- P0480 Cooling fan Chevrolet Cobalt 2.2L
- P0495 GM vehicles – roaring fan noise
- P0500, U1262 codes on Ford F-150 5.4L
- P0507 Trouble Code on Nissan Altima
- P0522 code, Oil pressure light on – Caravan, Town and Country
- P0605 trouble code on 2001-02 Caravan, Voyager, Town and Country
- P0705, P0707, P0708 Transmission range switch Kia
- P0756 Transmission Code — GM Vehicles
- P1151, P1131, P0174, or P0171 on Ford Duratec
- P1211, P1212 Ford Powerstroke Diesel
- P1316, P1282, P1211 on Ford Powerstroke Diesel
- P1491- Cooling Fan Won’t Turn On—Chrysler Minivan
- P1494 EVAP Leak Detection Pump Switch or Mechanical Fault
- P2122, P2123, P2125, P2127, P2128 Hyundai Sante Fe
- P2279 Intake Air System Leak Acura
- Temp Gauge Cold but cooling fans on – P0128
U Code Definitions
- Clicking relays, Instrument Panel blinking – Chevrolet Equinox
- U0001-High Speed CAN Communication Bus
- U0101 Lost Communication with TCM
- U0140 Lost Communication With Body Control Module
- U2105 CAN Bus Error ECM (GM specific code)
- U2106 Lost Comm with Trans Control System (GM specific)
- U2107 Lost Communications with Body Control System (GM specific code)
U Code Fixes
- ABS light on GM vehicles
- ABS, Red Brake Light, Sevice Vehicle light, Trouble code U2100, cannot communicate with PCM or BCM – Chevrolet Equinox
- P0500, U1262 codes on Ford F-150 5.4L
- U codes – Chevrolet Equinox
