Powertrain, generic (extended)

P2D69 Battery Charging System Positive Contactor D Circuit

Check engine lightUsually off

EmissionsNot relevant

Drive cycleNot required

Limp modeNo

P2D69 collects electrical faults of positive charging contactor D, a fourth plus-side switch after A (P0D07), B (P2BC4) and C (P2D5B). What D connects is not public: none of the makers documents P2D69, and the NHTSA bulletin index since 2015 names neither P2D69 nor any contactor D. Under CARB a plug-in hybrid must notice charger faults that prevent or slow down charging, but does not make them switch on an idle output only for a functional check, so a rarely used path may only be checked while it is in use. A GM patent offers a check at key-on: a coil pulse too short to close a healthy contactor still shows by its current whether the contacts are already shut. Specific faults: P2D6A–P2D6F; minus side: P2D70.

Likely causes

Defective coil or contacts of plus contactor D

Wiring or connector fault between module and contactor D

Fault in the module that switches contactor D

Symptoms

One charging mode unavailable
Fault may only show when that charging mode is used
Driving unaffected

Repair estimate

DifficultyShop_onlyWorkshop job

Parts and labour€150–1,800

Time1–6 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

bcs pos contactor dwiring harnessbms

References: law.cornell.edu, patents.google.com.