Fault Family System: Powertrain (P-Codes) 8 SAE Codes

Charge Port Door Unlock Control

Diagnostic & Technical Explanation

Code P0CD1 sets when the control module commands the charge port door's unlock actuator and the driver circuit reports an open, a short, or a current level outside the expected window. The most common physical causes are a corroded or unseated connector at the actuator, a chafed drive-circuit conductor in the fender harness run, and an internally failed actuator solenoid. Because this actuator only releases the mechanical latch, a fault here prevents the door from unlocking even when the open-request switch and position sensor both report correctly, isolating the fault to the latch mechanism itself.

These 8 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 8 times.

Codes in this family (8)

Code	Definition	Repair coverage
P0CD1	Charge Port Door A Unlock Control Circuit	3 ranked fixes
P0CD2	Charge Port Door A Unlock Control Circuit Performance	3 ranked fixes
P0CD3	Charge Port Door A Unlock Control Circuit Low	3 ranked fixes
P0CD4	Charge Port Door A Unlock Control Circuit High	3 ranked fixes
P2E9D	Charge Port Door B Unlock Control Circuit	3 ranked fixes
P2E9E	Charge Port Door B Unlock Control Circuit Performance	3 ranked fixes
P2E9F	Charge Port Door B Unlock Control Circuit Low	3 ranked fixes
P2EA0	Charge Port Door B Unlock 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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