Bulletin No.:

Service Bulletin

Date:

19-NA-032
September, 2019

TECHNICAL
Subject:

Lack of Power and/or Hesitation After Vehicle Has Reached Operating Temperature,
Malfunction Indicator Lamp (MIL) Illuminated - DTC P0325 and/or P0330 May Set

Brand:

Model:

Chevrolet

Malibu

Model Year:

VIN:

from

to

2018

2018

from

to

Engine:

Transmission:

1.5L (LFV)

Involved Region or Country

North America, Israel

Condition

Some customers may comment on one or more of the following conditions when the
vehicle has reached operating temperature:
• Lack of power
• Hesitation
• MIL illuminated
Some technicians may find one or more of the following DTCs set in the Engine Control
Module (ECM):
• P0325: Knock Sensor 1 Circuit
• P0330: Knock Sensor 2 Circuit

Cause

This condition may be caused by a software anomaly.

Correction

If the VIN is JF190216 and above, reprogram the ECM with the latest software available.
If the VIN is JF190215 and below, swap the wiring in the ECM electrical connector
between the two knock sensors.

⇒ Refer to the Service Procedure below.
Important: If a vehicle, VIN JF190215 and below, needs an engine wiring harness, verify that the vehicle has the most current
level of software in the ECM.If it does not, reprogram the ECM to current levels of software, use the first design harness and
modify ECM knock sensor wires as outlined in this Service Procedure.

Service Procedure
Note: Stable battery voltage is critical during
programming. Any fluctuation, spiking, over voltage or
loss of voltage will interrupt programming. Install a GM
Authorized Programming Support Tool to maintain
system voltage. Refer to www.gmdesolutions.com for
further information. If not available, connect a fully
charged 12 V jumper or booster pack disconnected
from the AC voltage supply. DO NOT connect a battery
charger.
1. Program the ECM. Refer to K20 Engine Control
Module: Programming and Setup in SI.
• If the VIN is JF190216 or above, no further work
is needed.
• If the VIN is JF190215 or below, continue with
procedure.
2. Disconnect the battery negative cable.

Copyright 2019 General Motors LLC. All Rights Reserved.

Page 2

September, 2019

Bulletin No.: 19-NA-032

5225787

5227926

3. Disconnect all the ECM electrical connectors.
4. Remove the ECM and position aside.

6. Verify the following:
• Cavity 28, BK/GY
• Cavity 29, BK/YE
• Cavity 42, WH/GY
• Cavity 43, VT/GY
7. Remove pin 28 and pin 29.
8. Insert pin 28 into cavity 29 and pin 29 into
cavity 28.
9. Remove pin 42 and pin 43.
10. Insert pin 42 into cavity 43 and pin 43 into
cavity 42.

5225789

5225807

5. Locate cavity 28, 29, 42 and 43 at the X2
connector. Refer to Document ID#: 5067630.

11. Verify the pins are in the new cavity as listed
below:
• Cavity 28, BK/YE
• Cavity 29, BK/GY
• Cavity 42, VT/GY
• Cavity 43, WH/GY

Bulletin No.: 19-NA-032

September, 2019

Parts Information
No parts are required for this repair.

Warranty Information
Important: Warranty coverage code E, E2 applies for
this module programming event. ECM reprogramming
is covered for 8 years/80,000 miles (U.S.) or 8 years/
130,000 km (Canada).
Note: Only select the Labor Operation that
corresponds with the repair performed.
For vehicles repaired under the Emission coverage,
use the following labor operation. Reference the
Applicable Warranties section of Investigate Vehicle
History (IVH) for coverage information.
Labor
Operation

Description

Labor Time

2886128*

Engine Control Module
Reprogramming with SPS
for Knock Sensor Software

0.5 hr

2886138*

Engine Control Module
Reprogramming with SPS
for Knock Sensor Software
and Wiring Harness
Pin Swap

1.5 hrs

Page 3

Warranty Claim Code Information Retrieval
If the SPS Warranty Claim Code was not recorded on
the Job Card, the code can be retrieved in the SPS
system as follows:
1. Open TIS on the computer used to program the
vehicle.
2. Select and start SPS.
3. Select Settings.
4. Select the Warranty Claim Code tab.
The VIN, Warranty Claim Code and Date/Time will be
listed on a roster of recent programming events. If the
code is retrievable, dealers should resubmit the
transaction making sure to include the code in the SPS
Warranty Claim Code field.

*This is a unique Labor Operation for Bulletin use only.
*To avoid warranty transaction rejections, carefully read and
follow the instructions below:
• The SPS Warranty Claim Code must be accurately
entered in the “SPS Warranty Claim Code” field of the
transaction.
• When more than one Warranty Claim Code is generated
for a programming event, it is required to document all
Warranty Claim Codes in the “Correction” field on the job
card. Dealers must also enter one of the codes in the
“SPS Warranty Claim Code” field of the transaction,
otherwise the transaction will reject. It is best practice to
enter the FINAL code provided by SPS.
Version

3

Modified

Released February 18, 2019
April 15, 2019 – Added Israel to Involved Regions or Country and changed VIN
breakpoint references to only show last 8 digits.
August 28, 2019 - Added MIL and DTC information to Subject and Condition sections and
added an Important and Warranty Claim Code information to the Warranty Information.

Additional Keywords: low, hesitate, sluggish

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.

WE SUPPORT VOLUNTARY
TECHNICIAN
CERTIFICATION