Diagnostic Trouble Code Search

Find detailed information about vehicle diagnostic trouble codes (DTCs). Enter a code or select a make to search our comprehensive database.

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DTC Code Format Guide
P Powertrain
B Body
C Chassis
U Network

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P Codes

Code Type System System Name Module Message
P0944 P-Code Powertrain Hydraulic Pressure Unit Engine Control Module Hydraulic Pressure Unit Loss of Pressure
P0945 P-Code Powertrain Hydraulic Pump Relay Circuit Engine Control Module Hydraulic Pump Relay Circuit / Open
P0946 P-Code Powertrain Hydraulic Pump Relay Circuit Engine Control Module Hydraulic Pump Relay Circuit Range/Performance
P0947 P-Code Powertrain Hydraulic Pump Relay Circuit Engine Control Module Hydraulic Pump Relay Circuit Low
P0948 P-Code Powertrain Hydraulic Pump Relay Circuit Engine Control Module Hydraulic Pump Relay Circuit High
P0949 P-Code Powertrain ASM Adaptive Learning Not Done Engine Control Module ASM Adaptive Learning Not Done
P0950 P-Code Powertrain ASM Control Circuit Engine Control Module ASM Control Circuit [Up / Down / Auto / etc]
P0951 P-Code Powertrain ASM Control Circuit Engine Control Module ASM Control Circuit Range/Performance
P0952 P-Code Powertrain ASM Control Circuit Engine Control Module ASM Control Circuit Low
P0953 P-Code Powertrain ASM Control Circuit Engine Control Module ASM Control Circuit High
P0954 P-Code Powertrain ASM Control Circuit Engine Control Module ASM Control Circuit Intermittent
P0955 P-Code Powertrain ASM Mode Circuit Engine Control Module ASM Mode Circuit [Perf / Winter / Sport / etc]
P0956 P-Code Powertrain ASM Mode Circuit Engine Control Module ASM Mode Circuit Range/Performance
P0957 P-Code Powertrain ASM Mode Circuit Engine Control Module ASM Mode Circuit Low
P0958 P-Code Powertrain ASM Mode Circuit Engine Control Module ASM Mode Circuit High
P0959 P-Code Powertrain ASM Mode Circuit Engine Control Module ASM Mode Circuit Intermittent
P0960 P-Code Powertrain Pressure Control Solenoid A Control Circuit Engine Control Module Pressure Control Solenoid A Control Circuit / Open
P0961 P-Code Powertrain Pressure Control Solenoid A Control Circuit Engine Control Module Pressure Control Solenoid A Control Circuit Range/Performance
P0962 P-Code Powertrain Pressure Control Solenoid A Control Circuit Engine Control Module Pressure Control Solenoid A Control Circuit Low
P0963 P-Code Powertrain Pressure Control Solenoid A Control Circuit Engine Control Module Pressure Control Solenoid A Control Circuit High