Lack of Power, Reduce Power Displayed on Drivers Information Center (DIC), Rough Idle, Stabilitrak Light On, Malfunction Indicator Light (MIL) Illuminated – DTC P0014 , P0365, P0366, P06A3, P16A1 and/or P016A2 Set – 2015-2021 Chevrolet Colorado & GMC Canyon

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Service Bulletin Bulletin No.: 18-NA-307
Date: May, 2021
TECHNICAL
Subject: Lack of Power, Reduce Power Displayed on Drivers Information Center (DIC), Rough
Idle, Stabilitrak Light On, Malfunction Indicator Light (MIL) Illuminated – DTC P0014 ,
P0365, P0366, P06A3, P16A1 and/or P016A2 Set
Brand: Model:
Model Year: VIN:
Engine: Transmission:
from to from to
Chevrolet Colorado
2015 2021 LCV
GMC Canyon
Involved Region or Country North America, Uzbekistan, Russia, Middle East, Israel, Palestine, Chile, Columbia, Peru,
GM Korea and Africa.
Condition
Some customers may comment on one or more of the following conditions:
Note: This is a multi-wire bundled harness and depending on which wire is damaged,
can set a variety of DTCs. Not all of the effects or driver notifications listed have been
experienced. However, the different effects and driver notifications may be caused by one
of the wires in the harness being chafed or cut. Components on different lines in the list
below are in different circuits. Due to the cause of the condition, and the positions of the
wires in the harness, it is unlikely that more than one circuit and/or fuse will be affected by
the condition.
• Lack of power
• Reduced Power displayed on DIC
• Rough idle
• Stabilitrak light on
Note: This is a multi-wire bundled harness and, depending on which wire is damaged,
can set a variety of DTCs.
Some technicians may find one or more of the following DTC’s set in History of the
Engine Control Module (ECM):
• P0014: Exhaust Camshaft Position System Performance
• P0365: Exhaust Camshaft Position Sensor Circuit
• P0366: Exhaust Camshaft Position System Performance
• P06A3: 5V Reference 4 Circuit
• P16A1: Sensor Communication Circuit High Voltage
• P16A2: Sensor Communication Circuit Performance
Page 2 May, 2021 Bulletin No.: 18-NA-307
Cause
5153274
This may be caused by the engine wiring harness chaffing on the edge of the camshaft
cover (A) and/or the cylinder head (B).
Correction
Note: Possible multiple effects or driver notifications may be experienced by one of the
wires in the engine harness being chafed or cut in different circuits. Due to the cause of
the condition, and the positions of the wires in the engine harness, it is unlikely that more
than one circuit and/or fuse will be affected by the condition.
1. Inspect the engine wiring harness conduit and wires for chaffing.
2. Repair the wires per the Wiring Repairs procedure in SI.
3. Using Woven Polyester Electrical Tape (PET), tape all the contact points of the
engine harness ensuring that the tape is applied in a double layer extending along
the engine harness past the camshaft cover or cylinder head.
4. Utilizing tie straps, position the engine wiring harness away from the camshaft cover
or cylinder head.
Bulletin No.: 18-NA-307 May, 2021 Page 3
Parts Information
No parts are required for this repair.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation Description Labor Time
5430902 Wire-to-Wire Repair Use the Published Labor
Operations Time
Version 3
Modified
Released October 12, 2018
Revised December 12, 2018 – Added more DTC’s to bulletin.
Revised May 24, 2021 – Added 2020–2021 to Model Year section and DTC P16A1 and
P16A2 to Subject and Condition sections.

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