Bulletin No.: PIP5650B
Published date: 01/17/2020

Preliminary Information
PIP5650B Diagnostic Tip: Possible DTC P3075 That May Be Set
Current or History
Proactive
Models
Brand:

Model:

Model Years:

VIN:
from

to

Engine:

Transmissions:

Cadillac

XT4

2019 - 2020

All

All

2.0 LSY

All

Chevrolet

Silverado 1500 (New Model)

2019 - 2020

All

All

2.7 L3B

All

GMC

Sierra 1500 (New Model)

2019 - 2020

All

All

2.7 L3B

All

Involved Region or
Country:

North America

Condition:

DTC P3075 that may be set current or in history.

Cause:

Possible cooling system low on coolant or air trapped in cooling system.

If you encounter a vehicle with the above condition complete the following steps. Do not replace the Coolant
Pump assembly at this time.
Note: For 2019MY vehicles equipped with the 2.7L L3B refer to 19-NA-149 rst, to verify the vehicle has the most
current level of software.
Pressure test the cooling system to con rm no coolant leaks are present. Any leaks in the cooling system should
be repaired using Service Information.
Once the coolant leak has been repaired, refer to the latest Cooling System Draining and Filling procedure in SI
for coolant ll and bleeding procedures.
Note: Once the engine is started after the coolant service ll procedure, it will be possible that DTC P3075 may
reset until all the air is properly purged from the cooling system. At this point any codes should be cleared, the
engine should be at operating temperature and the vehicle road tested to completely purge any remaining air
from the cooling system.
Once complete clear any DTC's and operate the vehicle under the conditions for running the trouble code per SI.
Note: The P3075 P3076 can detect coolant ow based failures.
The intrusive diagnostic test will run once per ignition cycle if all enable conditions are met per SI. The intrusive
diagnostic will run the coolant pump at roughly 4000rpm for 15 seconds and evaluates the pump motor AC
current to be within expected range.
The coolant pump AC current feedback will be lower if the cooling system is leaking or low on coolant.
Using GDS con rm the p3075 has ran and passed in the current drive cycle to ensure the diagnostic has executed
and no fault is detected before releasing the vehicle back to the customer.
If the vehicle returns for a second time with DTC P3075 replace the Coolant Pump assembly. Parts will be
returned to the Warranty Parts Center.

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:

4087038

Pressure test cooling system

0.3 Hr.

Version History
Version

Modi ed

3
05/20/2019 - Created on.
05/22/2019- Updated to add additional information for conditions for
running DTC P3075.
01/17/2020- Update to include reference to bulletin 19-NA-149 and include
2020 MY.

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