Fault Family System: Powertrain (P-Codes) 4 SAE Codes

Battery Temp Sensor Circuit

Diagnostic & Technical Explanation

Code P0514 (Battery Temperature Sensor Circuit Range/Performance) sets when the ECM/BCM sees an open, shorted, or out-of-range signal from the battery temperature sensor used to compensate charging voltage for ambient/battery temperature. Causes are a corroded sensor connector at the battery tray, a failed thermistor element, or chafed wiring routed near the battery terminals.

These 4 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 4 times.

Codes in this family (4)

Code	Definition	Repair coverage
P0514	Battery Temperature Sensor Circuit Range/Performance	3 ranked fixes
P0515	Battery Temperature Sensor Circuit	3 ranked fixes
P0516	Battery Temperature Sensor Circuit Low	3 ranked fixes
P0517	Battery Temperature Sensor Circuit 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)

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