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

Reductant Control Module Temp Sensor Circuit

Diagnostic & Technical Explanation

Code P06F0 (Reductant Control Module Internal Temperature Sensor Circuit) sets when the reductant (SCR/DEF) control module's internal temperature sensor reports an open, shorted, or implausible reading, or the module itself is running hotter than expected. Causes are inadequate module cooling/mounting, a failed internal sensor, or a wiring fault requiring module diagnosis.

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
P06F0	Reductant Control Module Internal Temperature Sensor Circuit	3 ranked fixes
P06F1	Reductant Control Module Internal Temperature Sensor Range/Performance	3 ranked fixes
P06F2	Reductant Control Module Internal Temperature Sensor Circuit Low	3 ranked fixes
P06F3	Reductant Control Module Internal 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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