Fault Family System: Powertrain (P-Codes) 25 SAE Codes

Fuel Pump Circuit

Diagnostic & Technical Explanation

Code P0230 (Fuel Pump Primary Circuit) sets when the ECM or fuel pump driver module detects an open circuit, out-of-range current, or a performance fault while driving the fuel pump. Causes are a worn pump motor, a failed pump driver module, a blown fuse/relay, or damaged pump wiring.

These 25 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 25 times.

Codes in this family (25)

Code	Definition	Repair coverage
P0230	Fuel Pump Primary Circuit	3 ranked fixes
P0231	Fuel Pump Secondary Circuit Low	3 ranked fixes
P0232	Fuel Pump Secondary Circuit High	3 ranked fixes
P0233	Fuel Pump Secondary Circuit Intermittent	3 ranked fixes
P023F	Fuel Pump Secondary Circuit/Open	3 ranked fixes
P025A	Fuel Pump Module A Control Circuit/Open	3 ranked fixes
P025B	Fuel Pump Module A Control Circuit Range/Performance	3 ranked fixes
P025C	Fuel Pump Module A Control Circuit Low	3 ranked fixes
P025D	Fuel Pump Module A Control Circuit High	3 ranked fixes
P027A	Fuel Pump Module B Control Circuit/Open	3 ranked fixes
P027B	Fuel Pump Module B Control Circuit Range/Performance	3 ranked fixes
P027C	Fuel Pump Module B Control Circuit Low	3 ranked fixes
P027D	Fuel Pump Module B Control Circuit High	3 ranked fixes
P0627	Fuel Pump A Control Circuit/Open	3 ranked fixes
P0628	Fuel Pump A Control Circuit Low	3 ranked fixes
P0629	Fuel Pump A Control Circuit High	3 ranked fixes
P062A	Fuel Pump A Control Circuit Range/Performance	3 ranked fixes
P064A	Fuel Pump Control Module A	3 ranked fixes
P2632	Fuel Pump B Control Circuit /Open	3 ranked fixes
P2633	Fuel Pump B Control Circuit Low	3 ranked fixes
P2634	Fuel Pump B Control Circuit High	3 ranked fixes
P2635	Fuel Pump A Low Flow/Performance	3 ranked fixes
P2636	Fuel Pump B Low Flow/Performance	3 ranked fixes
P26EA	Fuel Pump Control Module B	3 ranked fixes
P2BB3	Fuel Pump Secondary Circuit Performance	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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