18NA217 Service Bulletin/Repair Instructions

Service Bulletin
Bulletin No.:
18-NA-217
Date:
May, 2019
TECHNICAL

Subject:
Brand:

Chevrolet
GMC
Cruise Control Inoperative, Malfunction Indicator Lamp (MIL) Illuminated - DTCs P0097,

P00F4, P0102 and/or P2199 Set

Model:
Model Year:
VIN:
from
to
Silverado
2014
2018
Silverado LD
2019
2019
Sierra
2014
2018
Sierra

Limited
2019
2019
from
Engine:
Transmission:
to
L83, L86
Involved Region or Country
North America, Middle East, Israel, Thailand and Chile
Condition
Some customers may comment that:

• MIL is illuminated

• Cruise control inoperative

Some technicians may find one or more of the following DTCs set:

• P0097: Intake Air Temp (IAT) Sensor 2 Circuit Low Voltage in the Engine Control

Module (ECM).

• P00F4: Intake Air Humidity Sensor Circuit Low Voltage in the ECM.

• P0102: Mass Air Flow (MAF) Sensor Circuit Low Frequency in the ECM.

• P2199: Intake Air Temp (IAT) Sensor 1-2 Not Plausible in the ECM.

Some technicians may also find fuse #43 open.
Copyright 2019 General Motors LLC. All Rights Reserved.
Page 2
May, 2019
Bulletin No.: 18-NA-217
Cause
5118293
This condition may be caused by a short in circuit 5294 near the fuel composition sensor

electrical connector.
⇒ Refer to Document ID: 4694347 in SI.

Correction
Validate and inspect the engine wiring harness at the fuel composition sensor (Flexible

Fuel Sensor), follow the Wire to Wire Repair in SI to cut the wire and cap it off.
Service Procedure

1. Raise the vehicle.

2. With a suitable light, inspect the wiring harness.

Located along driver’s side frame rail near

electronic brake control module.
Bulletin No.: 18-NA-217
May, 2019
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May, 2019
Bulletin No.: 18-NA-217
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• Example of wiring harness in normal condition.
Bulletin No.: 18-NA-217
May, 2019
Page 5
5330264
• Example of wiring harness in a damaged

condition

3. Remove the wire connection point from the frame,

pull back the casing for the wire.
4. Cut the wire an inch from the back pin and cap the

wire off with a Sealed Splice Crimp Matrix.

– Refer to Wire to Wire Repair in SI.
Page 6
May, 2019
Bulletin No.: 18-NA-217
5328979
5. Using Woven Polyester Electrical Tape (PET), tape

off and reseal the capped wires.
Bulletin No.: 18-NA-217
May, 2019
Page 7
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May, 2019
Bulletin No.: 18-NA-217
5328983
6. Reattach the wire to the frame.
Bulletin No.: 18-NA-217
May, 2019
Page 9
5328984
Parts Information

Causal

Part
Description
Part

Number
Qty
Sealed Splice

Crimp Matrix
12089189
3
Page 10
May, 2019
Bulletin No.: 18-NA-217
Warranty Information

For vehicles repaired under the Bumper-to-Bumper

coverage (Canada Base Warranty coverage), use the

following labor operation. Reference the Applicable

Warranties section of Investigate Vehicle History (IVH)

for coverage information.

Labor Operation
Description
Labor Time
*5480668
Wire-to-Wire Repair
0.5 hr
*This is a unique Labor Operation for Bulletin use only.
Version
3
Modified
Released June 28, 2018

Revised January 10, 2019 - Added 2019 K2’s to Model section.

Revised May 03, 2019 – Updated Model Years to 2014, Updated Correction and Service

Procedure Section.
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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