P09xx OBD-II Codes (P0900–P0999)

100 fault codes in the P09xx range. Click any code for causes, diagnostic steps, severity, and common fixes.

P0900 critical
Clutch Actuator Circuit Open
P0901 moderate
Clutch Actuator Circuit Range/Performance
P0902 moderate
Clutch Actuator Circuit Low
P0903 moderate
Clutch Actuator Circuit Open
P0904 moderate
Gate Select Position Circuit
P0905 moderate
Gate Select Position Circuit Range/Performance
P0906 moderate
Gate Select Position Circuit Low
P0907 moderate
Gate Select Position Circuit High
P0908 moderate
Gate Select Position Circuit Intermittent
P0909 moderate
Gate Select Control Error
P0910 critical
Gate Select Actuator Circuit Open
P0911 moderate
Gate Select Actuator Circuit Range/Performance
P0912 moderate
Gate Select Actuator Circuit Low
P0913 moderate
Gear Shift Position Circuit Range/Performance
P0914 moderate
Gear Shift Position Circuit Open
P0915 moderate
Gear Shift Position Circuit Low
P0916 moderate
Gear Shift Position Circuit High
P0917 moderate
Gear Shift Position Circuit Intermittent
P0918 moderate
Gear Shift Position Control Performance
P0919 moderate
Gear Shift Position Control Error
P0920 critical
Gear Shift Forward Actuator Circuit Open
P0921 moderate
Gear Shift Forward Actuator Circuit Open
P0922 moderate
Gear Shift Forward Actuator Circuit Low
P0923 moderate
Gear Shift Forward Actuator Circuit High
P0924 moderate
Gear Shift Reverse Actuator Circuit Open
P0925 moderate
Gear Shift Reverse Actuator Circuit Low
P0926 moderate
Gear Shift Reverse Actuator Circuit High
P0927 moderate
Gear Shift Lock Actuator Circuit Open
P0928 moderate
Gear Shift Lock Actuator Circuit Low
P0929 moderate
Gear Shift Lock Actuator Circuit High
P0930 critical
Gear Shift Reverse Actuator Circuit Open
P0931 moderate
Clutch Actuator Stroke Sensor B Circuit Range/Performance
P0932 moderate
Hydraulic Pressure Sensor Circuit
P0933 moderate
Hydraulic Pressure Sensor Circuit Range/Performance
P0934 moderate
Hydraulic Pressure Sensor Circuit Low
P0935 moderate
Hydraulic Pressure Sensor Circuit High
P0936 moderate
Hydraulic Pressure Sensor Circuit Intermittent
P0937 moderate
Hydraulic Oil Temperature Sensor Circuit
P0938 moderate
Hydraulic Oil Temperature Sensor Circuit Range/Performance
P0939 moderate
Hydraulic Oil Temperature Sensor Circuit Low
P0940 critical
Gear Shift Actuator Circuit Open
P0941 moderate
Hydraulic Fan Pump Pressure Circuit
P0942 moderate
Hydraulic Fan Pump Pressure Circuit Range/Performance
P0943 moderate
Hydraulic Fan Pump Pressure Circuit Low
P0944 moderate
Hydraulic Fan Pump Pressure Circuit High
P0945 moderate
Hydraulic Oil Pump Relay Circuit Open
P0946 moderate
Hydraulic Oil Pump Relay Circuit Low
P0947 moderate
Hydraulic Oil Pump Relay Circuit High
P0948 moderate
Hydraulic Oil Pump Relay Circuit Intermittent
P0949 critical
Adaptive Learning Not Done Auto Shift Manual
P0950 moderate
Autoshifting Manual Transmission (ASM) Control Circuit
P0951 critical
Neutral to Drive Shift Performance (AT)
P0952 critical
Neutral to Reverse Shift Performance (AT)
P0953 critical
Reverse to Neutral Shift Performance (AT)
P0954 critical
Shift Mechanism Performance (AT)
P0955 critical
Shift Mechanism Performance (AT) No First Gear
P0956 critical
Shift Mechanism Performance (AT) No Second Gear
P0957 critical
Shift Mechanism Performance (AT) No Third Gear
P0958 critical
Shift Mechanism Performance (AT) No Fourth Gear
P0959 critical
Shift Mechanism Performance (AT) No Fifth Gear
P0960 moderate
Pressure Control Solenoid A Control Circuit Open
P0961 moderate
Pressure Control Solenoid A Control Circuit Range/Performance
P0962 moderate
Pressure Control Solenoid A Control Circuit Low
P0963 moderate
Pressure Control Solenoid A Control Circuit High
P0964 moderate
Pressure Control Solenoid B Control Circuit Range/Performance
P0965 moderate
Pressure Control Solenoid B Control Circuit Low
P0966 moderate
Pressure Control Solenoid B Control Circuit High
P0967 moderate
Pressure Control Solenoid C Control Circuit Range/Performance
P0968 moderate
Pressure Control Solenoid C Control Circuit Low
P0969 moderate
Pressure Control Solenoid C Control Circuit High
P0970 moderate
Pressure Control Solenoid B Control Circuit Open
P0971 moderate
Pressure Control Solenoid B Control Circuit Range/Performance
P0972 moderate
Shift Solenoid A Control Circuit Range/Performance
P0973 moderate
Shift Solenoid A Control Circuit Low
P0974 moderate
Shift Solenoid A Control Circuit High
P0975 moderate
Shift Solenoid B Control Circuit Range/Performance
P0976 moderate
Shift Solenoid E Performance/Stuck Off
P0977 moderate
Shift Solenoid E Stuck On
P0978 moderate
Shift Solenoid E Intermittent
P0979 moderate
Shift Solenoid F Performance/Stuck Off
P0980 moderate
Shift Solenoid F Stuck On
P0981 moderate
Shift Solenoid F Intermittent
P0982 moderate
Shift Solenoid G Performance/Stuck Off
P0983 moderate
Shift Solenoid G Stuck On
P0984 moderate
Shift Solenoid G Intermittent
P0985 moderate
Shift Solenoid H Performance/Stuck Off
P0986 moderate
Shift Solenoid H Stuck On
P0987 moderate
Shift Solenoid H Intermittent
P0988 moderate
Reverse Input Speed Sensor Circuit
P0989 moderate
Reverse Input Speed Sensor Circuit Range/Performance
P0990 moderate
Reverse Input Speed Sensor Circuit Low
P0991 moderate
Reverse Input Speed Sensor Circuit High
P0992 moderate
Reverse Input Speed Sensor Circuit Intermittent
P0993 moderate
Transmission Fluid Temperature Sensor B Circuit
P0994 moderate
Transmission Fluid Temperature Sensor B Circuit Range/Performance
P0995 moderate
Transmission Fluid Temperature Sensor B Circuit Low
P0996 moderate
Transmission Fluid Temperature Sensor B Circuit High
P0997 moderate
Transmission Fluid Temperature Sensor B Circuit Intermittent
P0998 moderate
Transmission Control System MIL Request Circuit High
P0999 moderate
Transmission Control System MIL Request Circuit Low
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