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DTC Code Glossary

Look up any of the 8,033 OBD-II diagnostic trouble codes in our database — what it means, and how we can permanently remove it from your ECU.

All P B C U
P2A28
Alternative Fuel Tank Shutoff Valve C Control Circuit Low
P2A29
Alternative Fuel Tank Shutoff Valve C Control Circuit High
P2A2A
Alternative Fuel Tank Shutoff Valve D Control Circuit/Open
P2A2B
Alternative Fuel Tank Shutoff Valve D Control Circuit Performance/Stuck Off
P2A2C
Alternative Fuel Tank Shutoff Valve D Control Circuit Low
P2A2D
Alternative Fuel Tank Shutoff Valve D Control Circuit High
P2A2E
Alternative Fuel Tank Shutoff Valve E Control Circuit/Open
P2A2F
Alternative Fuel Tank Shutoff Valve E Control Circuit Performance/Stuck Off
P2A30
Alternative Fuel Tank Shutoff Valve E Control Circuit Low
P2A31
Alternative Fuel Tank Shutoff Valve E Control Circuit High
P2A32
AFCM Power Relay Control Circuit/Open
P2A33
AFCM Power Relay Control Circuit Low
P2A34
AFCM Power Relay Control Circuit High
P2A35
AFCM Power Relay Sense Circuit
P2A36
AFCM Power Relay Sense Circuit Low
P2A37
AFCM Power Relay Sense Circuit High
P2A38
O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 3
P2A39
O2 Sensor Positive Current Control Circuit Low Bank 1 Sensor 3
P2A3A
O2 Sensor Positive Current Control Circuit High Bank 1 Sensor 3
P2A3B
O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 3
P2A3C
O2 Sensor Negative Current Control Circuit Low Bank 1 Sensor 3
P2A3D
O2 Sensor Negative Current Control Circuit High Bank 1 Sensor 3
P2A3E
Alternative Fuel Delivery Error
P2A3F
Excessive Time to Enter Alternative Fuel Control
P2A40
Alternative Fuel System - Injector Leakage to Rail Detected
P2A41
Alternative Fuel Tank B Pressure Sensor Circuit
P2A42
Alternative Fuel Tank B Pressure Sensor Range/Performance
P2A43
Alternative Fuel Tank B Pressure Sensor Circuit Low
P2A44
Alternative Fuel Tank B Pressure Sensor Circuit High
P2A45
Alternative Fuel Tank B Pressure Sensor Circuit Intermittent/Erratic
P2A46
Alternative Fuel Tank C Pressure Sensor Circuit
P2A47
Alternative Fuel Tank C Pressure Sensor Range/Performance
P2A48
Alternative Fuel Tank C Pressure Sensor Circuit Low
P2A49
Alternative Fuel Tank C Pressure Sensor Circuit High
P2A4A
Alternative Fuel Tank C Pressure Sensor Circuit Intermittent/Erratic
P2A4B
Alternative Fuel Temperature Sensor Circuit
P2A4C
Alternative Fuel Temperature Sensor Range/Performance
P2A4D
Alternative Fuel Temperature Sensor Circuit Low
P2A4E
Alternative Fuel Temperature Sensor Circuit High
P2A4F
Alternative Fuel Temperature Sensor Circuit Intermittent/Erratic
P2A50
Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit
P2A51
Alternative Fuel Vaporizer A Outlet Temperature Sensor Range/Performance
P2A52
Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit Low
P2A53
Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit High
P2A54
Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit Intermittent/Erratic
P2A55
Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit
P2A56
Alternative Fuel Vaporizer B Outlet Temperature Sensor Range/Performance
P2A57
Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit Low
P2A58
Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit High
P2A59
Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit Intermittent/Erratic
P2A5A
Alternative Fuel Vaporizer C Outlet Temperature Sensor Circuit
P2A5B
Alternative Fuel Vaporizer C Outlet Temperature Sensor Range/Performance
P2A5C
Alternative Fuel Vaporizer C Outlet Temperature Sensor Circuit Low
P2A5D
Alternative Fuel Vaporizer C Outlet Temperature Sensor Circuit High
P2A5E
Alternative Fuel Vaporizer C Outlet Temperature Sensor Circuit Intermittent/Erratic
P2A5F
Alternative Fuel Tank B Level Sensor Circuit
P2A60
Alternative Fuel Tank B Level Sensor Range/Performance
P2A61
Alternative Fuel Tank B Level Sensor Circuit Low
P2A62
Alternative Fuel Tank B Level Sensor Circuit High
P2A63
Alternative Fuel Tank B Level Sensor Circuit Intermittent/Erratic
P2A64
Alternative Fuel Tank C Level Sensor Circuit
P2A65
Alternative Fuel Tank C Level Sensor Range/Performance
P2A66
Alternative Fuel Tank C Level Sensor Circuit Low
P2A67
Alternative Fuel Tank C Level Sensor Circuit High
P2A68
Alternative Fuel Tank C Level Sensor Circuit Intermittent/Erratic
P2A69
Alternative Fuel Rail Pressure Regulator Inlet Pressure Sensor Circuit
P2A6A
Alternative Fuel Rail Pressure Regulator Inlet Pressure Sensor Range/Performance
P2A6B
Alternative Fuel Rail Pressure Regulator Inlet Pressure Sensor Circuit Low
P2A6C
Alternative Fuel Rail Pressure Regulator Inlet Pressure Sensor Circuit High
P2A6D
Alternative Fuel Rail Pressure Regulator Inlet Pressure Sensor Circuit Intermittent/Erratic
P2A6E
Alternative Fuel Rail Pressure Regulator Inlet Pressure Too Low
P2A6F
Alternative Fuel Rail Pressure Regulator Inlet Pressure Too High
P2A70
Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit
P2A71
Alternative Fuel Hydraulic Fuel Pump Select Valve Control Range/Performance
P2A72
Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit Low
P2A73
Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit High
P2A74
Alternative Fuel Hydraulic Fuel Pump Select Valve Control Circuit Intermittent/Erratic
P2A75
Alternative Fuel Hydraulic Pump Pressure Sensor Circuit
P2A76
Alternative Fuel Hydraulic Pump Pressure Sensor Range/Performance
P2A77
Alternative Fuel Hydraulic Pump Pressure Sensor Circuit Low
P2A78
Alternative Fuel Hydraulic Pump Pressure Sensor Circuit High
P2A79
Alternative Fuel Hydraulic Pump Pressure Sensor Circuit Intermittent/Erratic
P2A7A
Alternative Fuel Hydraulic Pressure Sensor Circuit
P2A7B
Alternative Fuel Hydraulic Pressure Sensor Range/Performance
P2A7C
Alternative Fuel Hydraulic Pressure Sensor Circuit Low
P2A7D
Alternative Fuel Hydraulic Pressure Sensor Circuit High
P2A7E
Alternative Fuel Hydraulic Pressure Sensor Circuit Intermitttent/Erratic
P2A7F
Alternative Fuel Pump A Compression Stroke Valve Control Circuit/Open
P2A80
Alternative Fuel Pump A Compression Stroke Valve Control Circuit Range/Performance
P2A81
Alternative Fuel Pump A Compression Stroke Valve Control Circuit Low
P2A82
Alternative Fuel Pump A Compression Stroke Valve Control Circuit High
P2A83
Alternative Fuel Pump B Compression Stroke Valve Control Circuit/Open
P2A84
Alternative Fuel Pump B Compression Stroke Valve Control Circuit Range/Performance
P2A85
Alternative Fuel Pump B Compression Stroke Valve Control Circuit Low
P2A86
Alternative Fuel Pump B Compression Stroke Valve Control Circuit High
P2A87
Alternative Fuel Pump C Compression Stroke Valve Control Circuit/Open
P2A88
Alternative Fuel Pump C Compression Stroke Valve Control Circuit Range/Performance
P2A89
Alternative Fuel Pump C Compression Stroke Valve Control Circuit Low
P2A8A
Alternative Fuel Pump C Compression Stroke Valve Control Circuit High
P2A8B
Alternative Fuel Vaporizer A Performance