Fault Family System: Powertrain (P-Codes) 43 SAE Codes

Transmission Fluid Pressure Sensor Circuit

Diagnostic & Technical Explanation

Code P083A (Transmission Fluid Pressure Sensor/Switch G Circuit) sets when the TCM sees an open, shorted, or implausible signal from one of several transmission hydraulic pressure sensors/switches used to confirm clutch-apply pressure for each friction element. Every lettered sensor shares the same diagnosis path: causes are a failed sensor/switch, debris in the sensor's hydraulic passage, or a corroded/chafed connector at the internal valve-body harness.

These 43 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 43 times.

Codes in this family (43)

Code	Definition	Repair coverage
P083A	Transmission Fluid Pressure Sensor/Switch G Circuit	3 ranked fixes
P083B	Transmission Fluid Pressure Sensor/Switch G Circuit Range/Performance	3 ranked fixes
P083C	Transmission Fluid Pressure Sensor/Switch G Circuit Low	3 ranked fixes
P083D	Transmission Fluid Pressure Sensor/Switch G Circuit High	3 ranked fixes
P083E	Transmission Fluid Pressure Sensor/Switch G Circuit Intermittent	3 ranked fixes
P0840	Transmission Fluid Pressure Sensor/Switch A Circuit	3 ranked fixes
P0841	Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance	3 ranked fixes
P0842	Transmission Fluid Pressure Sensor/Switch A Circuit Low	3 ranked fixes
P0843	Transmission Fluid Pressure Sensor/Switch A Circuit High	3 ranked fixes
P0844	Transmission Fluid Pressure Sensor/Switch A Circuit Intermittent	3 ranked fixes
P0845	Transmission Fluid Pressure Sensor/Switch B Circuit	3 ranked fixes
P0846	Transmission Fluid Pressure Sensor/Switch B Circuit Range/Performance	3 ranked fixes
P0847	Transmission Fluid Pressure Sensor/Switch B Circuit Low	3 ranked fixes
P0848	Transmission Fluid Pressure Sensor/Switch B Circuit High	3 ranked fixes
P0849	Transmission Fluid Pressure Sensor/Switch B Circuit Intermittent	3 ranked fixes
P084A	Transmission Fluid Pressure Sensor/Switch H Circuit	3 ranked fixes
P084B	Transmission Fluid Pressure Sensor/Switch H Circuit Range/Performance	3 ranked fixes
P084C	Transmission Fluid Pressure Sensor/Switch H Circuit Low	3 ranked fixes
P084D	Transmission Fluid Pressure Sensor/Switch H Circuit High	3 ranked fixes
P084E	Transmission Fluid Pressure Sensor/Switch H Circuit Intermittent	3 ranked fixes
P0867	Transmission Fluid Pressure	3 ranked fixes
P0868	Transmission Fluid Pressure Low	3 ranked fixes
P0869	Transmission Fluid Pressure High	3 ranked fixes
P0870	Transmission Fluid Pressure Sensor/Switch C Circuit	3 ranked fixes
P0871	Transmission Fluid Pressure Sensor/Switch C Circuit Range/Performance	3 ranked fixes
P0872	Transmission Fluid Pressure Sensor/Switch C Circuit Low	3 ranked fixes
P0873	Transmission Fluid Pressure Sensor/Switch C Circuit High	3 ranked fixes
P0874	Transmission Fluid Pressure Sensor/Switch C Circuit Intermittent	3 ranked fixes
P0875	Transmission Fluid Pressure Sensor/Switch D Circuit	3 ranked fixes
P0876	Transmission Fluid Pressure Sensor/Switch D Circuit Range/Performance	3 ranked fixes
P0877	Transmission Fluid Pressure Sensor/Switch D Circuit Low	3 ranked fixes
P0878	Transmission Fluid Pressure Sensor/Switch D Circuit High	3 ranked fixes
P0879	Transmission Fluid Pressure Sensor/Switch D Circuit Intermittent	3 ranked fixes
P0987	Transmission Fluid Pressure Sensor/Switch E Circuit	3 ranked fixes
P0988	Transmission Fluid Pressure Sensor/Switch E Circuit Range/Performance	3 ranked fixes
P0989	Transmission Fluid Pressure Sensor/Switch E Circuit Low	3 ranked fixes
P0990	Transmission Fluid Pressure Sensor/Switch E Circuit High	3 ranked fixes
P0991	Transmission Fluid Pressure Sensor/Switch E Circuit Intermittent	3 ranked fixes
P0992	Transmission Fluid Pressure Sensor/Switch F Circuit	3 ranked fixes
P0993	Transmission Fluid Pressure Sensor/Switch F Circuit Range/Performance	3 ranked fixes
P0994	Transmission Fluid Pressure Sensor/Switch F Circuit Low	3 ranked fixes
P0995	Transmission Fluid Pressure Sensor/Switch F Circuit High	3 ranked fixes
P0996	Transmission Fluid Pressure Sensor/Switch F Circuit Intermittent	3 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here:

Procedures 2..n after the first-listed procedure
Aftermarket parts cost ranges in USD (est_parts_cost_min/max_usd)
Professional labor-hour estimates (est_labor_hours)
Step-by-step diagnostic and repair instructions
Replacement-part mappings and catalog lookups
6,637 manufacturer-specific OEM codes across 32 makes ($149 tier)

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