Fault Family System: Powertrain (P-Codes) 7 SAE Codes

Transmission Fluid Level Circuit

Diagnostic & Technical Explanation

Code P070A (Transmission Fluid Level Sensor Circuit) sets when the TCM sees an open, shorted, or implausible signal from the transmission fluid level sensor, or actual fluid level is measured outside the normal range. Causes are a failed level sensor/float, an actual low fluid condition from a leak, or an overfilled system from a prior service error.

These 7 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 7 times.

Codes in this family (7)

Code	Definition	Repair coverage
P070A	Transmission Fluid Level Sensor Circuit	3 ranked fixes
P070B	Transmission Fluid Level Sensor Circuit Range/Performance	3 ranked fixes
P070C	Transmission Fluid Level Sensor Circuit Low	3 ranked fixes
P070D	Transmission Fluid Level Sensor Circuit High	3 ranked fixes
P070E	Transmission Fluid Level Sensor Circuit intermittent/Erratic	3 ranked fixes
P070F	Transmission Fluid Level Too Low	3 ranked fixes
P075F	Transmission Fluid Level Too High	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)

Need All 15,886 Codes as Data?

Pipe-delimited CSV, Apache Parquet and a relational SQLite database, with commercial application rights and instant download. Built for scan tools, shop software and research - not assembled one web page at a time.

License OEM Complete · $149 Standard (SAE only) · $49

$49 Standard: 9,249 SAE codes · $149 OEM Complete: all 15,886 codes, including 6,637 OEM codes across 32 makes · $149 Heavy Duty: 4,212 fault pairs (J1939) · one-time · compare tiers