Fault Family System: Powertrain (P-Codes) 28 SAE Codes

Charging System Negative Contactor

Diagnostic & Technical Explanation

Code P0D0E sets when the battery management system commands the onboard charger's negative contactor open or closed and its feedback contact or the resulting bus voltage does not confirm the commanded state within the expected time. The most common physical causes are pitted or welded contact tips from repeated charge-session switching, a corroded coil-driver connector, and a failed coil winding; because this contactor completes the charger's return path, a fault here is diagnosed with the charger disconnected and locked out the same way as the charger's positive contactor.

These 28 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 28 times.

Codes in this family (28)

Code	Definition	Repair coverage
P0D0E	Battery Charging System Negative Contactor A Circuit	3 ranked fixes
P0D0F	Battery Charging System Negative Contactor A Stuck Closed	3 ranked fixes
P0D10	Battery Charging System Negative Contactor A Stuck Open	3 ranked fixes
P0D11	Battery Charging System Negative Contactor A Control Circuit/Open	3 ranked fixes
P0D12	Battery Charging System Negative Contactor A Control Circuit Range/Performance	3 ranked fixes
P0D13	Battery Charging System Negative Contactor A Control Circuit Low	3 ranked fixes
P0D14	Battery Charging System Negative Contactor A Control Circuit High	3 ranked fixes
P2BCB	Battery Charging System Negative Contactor B Circuit	3 ranked fixes
P2BCC	Battery Charging System Negative Contactor B Stuck Closed	3 ranked fixes
P2BCD	Battery Charging System Negative Contactor B Stuck Open	3 ranked fixes
P2BCE	Battery Charging System Negative Contactor B Control Circuit/Open	3 ranked fixes
P2BCF	Battery Charging System Negative Contactor B Control Circuit Range/Performance	3 ranked fixes
P2BD0	Battery Charging System Negative Contactor B Control Circuit Low	3 ranked fixes
P2BD1	Battery Charging System Negative Contactor B Control Circuit High	3 ranked fixes
P2D62	Battery Charging System Negative Contactor C Circuit	3 ranked fixes
P2D63	Battery Charging System Negative Contactor C Stuck Closed	3 ranked fixes
P2D64	Battery Charging System Negative Contactor C Stuck Open	3 ranked fixes
P2D65	Battery Charging System Negative Contactor C Control Circuit/Open	3 ranked fixes
P2D66	Battery Charging System Negative Contactor C Control Circuit Range/Performance	3 ranked fixes
P2D67	Battery Charging System Negative Contactor C Control Circuit Low	3 ranked fixes
P2D68	Battery Charging System Negative Contactor C Control Circuit High	3 ranked fixes
P2D70	Battery Charging System Negative Contactor D Circuit	3 ranked fixes
P2D71	Battery Charging System Negative Contactor D Stuck Closed	3 ranked fixes
P2D72	Battery Charging System Negative Contactor D Stuck Open	3 ranked fixes
P2D73	Battery Charging System Negative Contactor D Control Circuit/Open	3 ranked fixes
P2D74	Battery Charging System Negative Contactor D Control Circuit Range/Performance	3 ranked fixes
P2D75	Battery Charging System Negative Contactor D Control Circuit Low	3 ranked fixes
P2D76	Battery Charging System Negative Contactor D Control 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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