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2020 - 2021 Corvette: Service Bulletin: #PIT5817A: SES MIL / Dead Battery / DTC P0700 P2535 U300D - (Mar 8, 2021)

#PIT5817A: SES MIL / Dead Battery / DTC P0700 P2535 U300D - (Mar 8, 2021)

Subject SES MIL / Dead Battery / DTC P0700 P2535 U300D

Brand:

Model:

Model Year:

VIN:

Engine:

Transmission:

from

to

from

to

Buick

Envision

2021

All

All

All

All

Cadillac

CT4

2020 - 2021

All

All

All

All

Cadillac

CT5

2020 - 2021

All

All

All

All

Cadillac

Escalade Models

2021

All

All

All

All

Chevrolet

Corvette

2020 - 2021

All

All

All

All

Chevrolet

Suburban

2021

All

All

All

All

Chevrolet

Tahoe

2021

All

All

All

All

GMC

Yukon Models

2021

All

All

All

All

 

Involved Region or Country

North America

Condition

Some customers may comment on the following:

  • SES MIL at start up
  • Dead Battery

When checking the vehicle for DTC’s, the following may be set:

ECM: P0700 and/or P2535

TCM: P2535

BSCM: P2535

IPC: U300D

These concerns may be more likely to occur after using the remote vehicle start.

Cause

The cause of this concern could be the BCM ignition 1 relay (KR73) driver remaining energized after the ignition is turned off. 

This will apply power to circuit 5199 for the KR73 ignition main relay, keeping it energized even though the ignition is off, example Document ID: 5430865.

Correction

Follow normal SI diagnostic procedures for DTC P2535 and if it is found that the BCM is keeping power on circuit 5199 after the ignition is turned off, then replace the BCM.  

Version

2

Modified

03/01/2021 – Created on

03/08/2021 - Updated the model list

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