Damaged, chafed or disconnected wiring in the indicator control circuit (open circuit); Corroded, loose or pushed-back terminals at the indicator, charge port or control unit connector; Failed indicator, LED or charge port assembly; Water ingress or damage at the charge inlet area; Blown fuse or loss of supply to the indicator circuit, where fitted; Internal driver fault in the charging or powertrain control unit, or outdated software where the manufacturer lists it as a known cause.

P0D2B

Control Pilot Indicator Control Circuit/Open.

Generic
Powertrain
Generic code
Low severity

How this code is built

P: SystemPowertrain
0: Defined bySAE, the same on every car
D: AreaReserved
2B: FaultThe specific fault in that area

What it means

P0D2B is a generic code for an open circuit in the control pilot indicator control circuit, found on plug-in hybrid and electric vehicles. The charging or powertrain control unit commands the indicator and detected no current path or an out-of-range voltage, which points to an open circuit. What the indicator does and which module owns it depends on the vehicle, so check the manufacturer's information for that model.

Symptoms

Charge status indicator not lighting or not behaving normally when a charging cable is connected
Warning light or message about a charging system fault
Charging will not start, stops early or is inconsistent
Charge port light or indicator stays off
Fault stored with no obvious change to normal driving

Possible causes

Damaged, chafed or disconnected wiring in the indicator control circuit (open circuit)likely
Corroded, loose or pushed-back terminals at the indicator, charge port or control unit connectorlikely
Failed indicator, LED or charge port assemblypossible
Water ingress or damage at the charge inlet areapossible
Blown fuse or loss of supply to the indicator circuit, where fittedpossible
Internal driver fault in the charging or powertrain control unit, or outdated software where the manufacturer lists it as a known causerare

How to diagnose

Read all stored and pending codes and the freeze frame data, noting any other charging or high-voltage codes.
Check the charge port and indicator visually for damage, moisture, debris or signs of repair.
Inspect the wiring and connectors between the indicator, charge port and control unit for chafing, corrosion, bent pins or poor terminal tension.
Check the relevant fuses and the supply and earth to the indicator circuit using the wiring diagram for the model.
Check for an open circuit with the connectors disconnected and the vehicle safely powered down, using a multimeter and the wiring diagram.
Operate the indicator using a bidirectional scan tool test, if the vehicle supports it, and see whether it responds.
Check the manufacturer's information for software updates or technical bulletins relating to this code on that model.
Clear the code after the repair and test with a charging session to confirm it does not return.

How to fix

Repair or replace damaged wiring in the open circuit section, following the manufacturer's repair procedure.
Clean, re-seat or replace corroded or loose connectors and terminals.
Replace the faulty indicator or charge port assembly if testing shows it is open or failed.
Dry out and repair any water ingress, then replace affected components.
Replace the blown fuse only after finding the cause of the failure.
Update or replace the control unit only when diagnosis confirms a fault in it or a known software issue.

Can I keep driving?

Low severity

The car can normally be driven, but charging may be unreliable, so book it in soon. High-voltage systems are dangerous, so leave any work near the charge port or high-voltage wiring to a trained technician.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.