File in Section:

Service Bulletin

08 - Body and Accessories

Bulletin No.:

12-08-45-001A

Date:

February, 2014

INFORMATION
Subject:

Diagnostic Information for Intermittent 110/220V AC Plug-In Charging

Models:

2014 Cadillac ELR
2011-2014 Chevrolet Volt
2014 Chevrolet Spark EV

This bulletin has been revised to add the 2014 Spark EV, ELR and 2013-2014 Volt models.
Please discard Corporate Bulletin Number 12-08-45-001.

The first step in any diagnosis on a charge cord is to
duplicate it on a known good dedicated circuit.
Intermittent issues with electrical noise or inadequate
grounding can only be checked by a licensed
electrician.
If the condition only happens at the customers home or
other charge locations, a licensed electrician may be
need to inspect the circuit and wall outlet including
checking for:
Inadequate Ground
The symptoms for this condition include both LEDs on
the EVSE flashing red and the vehicle charge status
indicator turning off. This condition can happen
intermittently or it may cause a no charge condition.
Changes in the electrical load on the circuit may trigger
the fault. A good way to identify this condition is to
measure the AC voltage between the left flat blade of
the wall plug (callout (1) below) (neutral) and the
rounded pin (callout (2) below) (ground). If the AC
voltage between neutral and ground exceeds 4 volts
while the vehicle is charging, have a licensed
electrician check the ground and neutral connections
for the circuit that supplies the outlet. (Note: this ground
to neutral check does not apply to the charge station).

2889202

Copyright 2014 General Motors LLC. All Rights Reserved.

Page 2

February, 2014

Electrical Noise
The symptoms of this condition can include the right
LED on the EVSE periodically flashing red, which will
also cause the vehicle charge indicator to change from
green to off to amber repeatedly. This condition can
also occur with both LEDs green, or the right LED
apparently continuously red or changing from green to
red . When the EVSE is unplugged from the vehicle, the
LEDs will go back to green. While the dash light is
changing colors you will be able to hear an audible
clicking coming from the EVSE. This condition may or
may not be accompanied by the P0D3F DTC.
Another response to this condition that has been
observed is the vehicle charge status indicator stays off
and the right LED is flashing red while the cord is
plugged into the vehicle, and no audible clicking is
heard from the EVSE. Immediately upon removing the
vehicle plug, the right LED goes back to green.

Bulletin No.: 12-08-45-001A

This condition is caused by certain types of electrical
noise on the AC supply line that induce problematic
frequencies on the control pilot circuit in the cord, thus
triggering a fault condition. Engineering is investigating
a solution to this condition, but replacing the EVSE will
not correct the condition.
DTC P0D3F, DTC P0D3E, DTC P1EE6
Device Power Circuit Voltage Below Threshold: The
first thing is to check for low A/C supply voltage. If the
circuit is not dedicated with good wall plug, charging
should be done at reduced rate. Refer to the Owners
Manual.

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these
technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper
service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a
job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your
vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the
information.

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