22-NA-170

Bulletin No.:
Service Bulletin
Date:
22-NA-170
September, 2023
INFORMATION
Subject:
Information on Possible Crank No Start or Extended Crank with DTC P12A6 or Service
Safety Restraints message on DIC, with B0073
“This Bulletin Replaces PIT5823. Please Discard PIT5823.”
Brand:
Model:
Chevrolet
Equinox
Holden
Equinox
GMC
Terrain
Involved Region or Country
Model Year:
from
to
2018
2020
VIN:
from
to
Engine:
Transmission:
2024
2024
US, Canada, Mexico, Australia/New Zealand, Middle East
Additional Options (RPOs)
Condition
A customer may come in with a complaint of a no start, extended cranking time, a dead
battery, a fuel pump that runs with key off, or a Service Safety Restraints message on
the DIC.
Cause
This may be caused by water intrusion from the right side tail lamp due to a cracked or
broken lens or housing. If the right tail lamp has standing water, the water may migrate
through the bulb connector wire strands, and may settle at the X350 connector, the X320
connector or BCM.
Service Procedure
Important: Service agents must comply with all
International, Federal, State, Provincial, and/or
Local laws applicable to the activities it performs
under this bulletin, including but not limited to
handling, deploying, preparing, classifying,
packaging, marking, labeling, and shipping
dangerous goods. In the event of a conflict between
the procedures set forth in this bulletin and the
laws that apply to your dealership, you must follow
those applicable laws.
1. Inspect the right tail lamp for signs of damage or
standing water. If there is damage or standing
water, inspect the tail lamp bulb connectors for
signs of corrosion or water. Replace the tail lamp
and bulb connector, if corroded, to prevent a repeat
concern.
Note: Damaged tail lamps and wiring and/or connector
issues it causes are not warrantable repairs unless the
tail lamp is found to be defective. Impact and collision
damage is not a tail lamp defect.
Copyright 2023 General Motors LLC. All Rights Reserved.
6144660
Page 2
September, 2023
2. If the tail lamp and connector are damaged,
continue with next step. If the tail lamp and
connector are ok, continue with diagnosis
following SI for the appropriate DTC.
3. For DTC P12A6, inspect connector X350 for signs
of water intrusion or corrosion. X350 is the Fuel
Tank Harness to Body Harness connector, under
the vehicle.
Bulletin No.: 22-NA-170
If water intrusion or corrosion is found, make
repairs by replacing the connector with terminated
leads on the body harness side, or by replacing the
fuel pump control module harness, or both repairs
if both sides show water intrusion, corrosion and/or
damage.
4. For DTC B0073 or Service Safety Restraints
message on DIC, inspect connector X320, Right
Front Seat Harness to Body Harness, for signs of
water intrusion or corrosion. Refer to SIR Disabling
and Enabling in SI prior to inspection.
If water intrusion or corrosion is found, make
repairs following proper procedures. Refer to SIR/
SRS Wiring Repairs in SI.
5. If water is found at either connector, also check the
K9 BCM connector for signs of water intrusion.
Repair wiring referring to SI for connectors and/or
terminated leads.
6. If no water intrusion or corrosion is present, add
dielectric grease to the connector, then continue
with diagnosis following SI for the
appropriate DTC.
Warranty Information
For wiring repairs covered under warranty, please refer
to latest version of bulletin 10-00-89-005 for warranty
information on wire/connector repairs.
6144661
Note: Examples above of corrosion which can cause a
poor connection resulting in no-start. The water
intrusion can also short terminals together, which can
keep the fuel pump running after key-off, draining the
battery.
Version
2
Modified
Released September 07, 2022
Revised September 12, 2023 – Added 2024 Model Year and Keywords.
Keywords : water, tail lamp, X350, X320, BCM, P12A6,
B0073, SIR/SRS, corrosion, electrical, connector,
terminal, pin, moisture
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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