LM2 Diesel DTCs P0545 or P04D1 Set – 2020-2021 Chevrolet Silverado & GMC Sierra

NHTSA ID Number: 10201272

Manufacturer Communication Number: PIP5808

 

Summary

This Preliminary information communicates to technicians to replace the ECM and affected sensor if diagnostics leads to replacement of the ECM.

 

 


Condition:

SES light is on and DTCs P0545 or P04D1 set.

P0545 – Exhaust Gas Temperature Sensor 1 (B131A) Circuit Low Voltage.

DTC P04D1 – Exhaust Gas Recirculation (EGR) Temperature Sensor 2 (B130BH) Circuit High Voltage.

 

Cause:

Under investigation

 

Correction:

Follow Service Information diagnostics for each DTC set.

If the code can be duplicated and Service Information Diagnostics for the P0545 leads to replacing the Exhaust Temperature sensor 1 (B131A), replace as necessary.

If If the code can be duplicated and Service Information Diagnostics for the P04D1 leads to replacing the Exhaust Gas Recirculation (EGR) Temperature Sensor 2 (B130BH), replace as necessary.

If Service Information Diagnostics leads to ECM replacement, replace both the ECM and the sensor indicated by the DTC.

 


 

 


2 Affected Products

Vehicles

MAKE MODEL YEAR
GMC SIERRA 1500 2021
GMC SIERRA 2500 2020

 


1 Associated Document

Manufacturer Communications

Bulletin No.: PIP5808
Published date: 06/8/2021

https://www.nhtsa.gov/recalls?nhtsaId=10201272

MC-10201272-9999.pdf 92.099KB

MC-10201272-9999

 


 

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