Powertrain, generic (extended)

P2D61 Battery Charging System Positive Contactor C Control Circuit High

Check engine lightUsually off

EmissionsNot relevant

Drive cycleNot required

Limp modeNo

P2D61 points to excess voltage on the wire feeding the coil of plus-side contactor C, caused by touching a 12 V feed or by an output stage that no longer switches off. The real danger is a coil energised without command, closing the plus pole of the charging path while the module assumes it is open; charging is therefore normally inhibited. No manufacturer documents P2D61 publicly. GM's contactor A test (P0D0A) detects this as a short to battery when the switched-off output is less than 0.4 V below supply (2016 tables; the 2011 Volt minus contactor test uses 1.2 V). Audi documents the comparable high fault for contactor B (P2BCA) on Q8 e-tron models of model year 2024, but not for C. Chafed or swapped wires after repair work and a faulty driver are the usual causes. P2D60 is the low case, P2D68 the minus side.

Likely causes

Coil feed wire shorted to a 12 V supply

Output stage does not switch off

Wires swapped at a connector after repair work

Symptoms

Charging blocked as a precaution
Contactor may click without a charging request
High-voltage or charging warning

Repair estimate

DifficultyShop_onlyWorkshop job

Parts and labour€100–1,500

Time1–5 h

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

Parts involved

bcs pos contactor cwiring harnessbms

Related codes

P2D5E P2D5F P2D60 P2D68 P2BCA P0D0D

References: gsi.ext.gm.com, gsi.ext.gm.com, static.nhtsa.gov.