PIT5692A
Service Bulletin Details
Public Details for: PIT5692A
This preliminary information communication provides information to the technician about how to diagnosis a battery draw that may be caused by a module back feeding voltage in the ignition relay circuits making the vehicle think it is still
Models from 2020
| 2020 CADILLAC ESCALADE ESV |
| 2020 CHEVROLET SUBURBAN |
| 2020 CHEVROLET TAHOE |
| 2020 GMC YUKON XL |
Models from 2019
| 2019 CADILLAC ESCALADE ESV |
| 2019 CHEVROLET SUBURBAN |
| 2019 CHEVROLET TAHOE |
| 2019 GMC YUKON DENALI |
Models from 2018
| 2018 CADILLAC ESCALADE ESV |
| 2018 CHEVROLET SUBURBAN |
| 2018 CHEVROLET TAHOE |
| 2018 GMC YUKON DENALI |
Models from 2017
| 2017 CADILLAC ESCALADE ESV |
| 2017 CHEVROLET SUBURBAN |
| 2017 CHEVROLET TAHOE |
| 2017 GMC YUKON DENALI |
Bulletin No.: PIT5692A Published date: 02/18/2022 Preliminary Information PIT5692A Diagnostic Tip For 12 Volt Battery Going Dead Overnight Models Brand: Model: Model Years: VIN: from Engine: to Transmissions: Cadillac Escalade Models 2017 - 2020 All All All All Chevrolet Suburban 2017 - 2020 All All All All Chevrolet Tahoe 2017 - 2020 All All All All GMC Yukon Models 2017 - 2020 All All All All Involved Region or Country North America Some customers may experience one or all the following concerns: 1) Battery draw which typically is between 5 and 6 amps Condition 2) Radio backlighting will stay on even after the ignition has been turned o and the key has been removed for several minutes 3) May Have current or history DTC: P2535 Cause This concern may be caused by unwanted voltage at the ignition fuses fed by the KR73 Ignition main relay in the X51L left Instrument Fuse box, with the Ignition o . Correction: If you experience any of the above concerns, check for voltage with a DVOM on all the fuses that are fed by the KR73 Ignition relay. These fuses are all on the same Run/Crank Ignition Buss Bar, in the Left I/P Fuse Block, and should not have any power with the ignition off. In some cases, there may only be 2 or 3 volts present, so a voltmeter must be used to check for voltage. Example wiring diagram for the KR73 Ignition Main Relays and fuses is Document ID: 4501672. If there is any voltage on the fuses with the ignition in the off position, remove fuses one at a time to isolate which module is causing the concern. Once you have located the effected module, Unplug the module and see if the back feed goes away. Once the module is isolated, replace as needed. TAC has seen some issues in the field where the K29F front heated seat module or the K29R rear heated seat module may be causing the back feed concern. Note: If you remove all the fuses fed by, the KR73 Ignition Main Relay and you cannot isolate the concern down to a single fuse, Inspect the backside of the X51L Fuse block in the instrument panel for corrosion. We have seen some cases where the front windshield or the OnStar Antenna has a water leak and causes corrosion on the backside of the fuse box. Version History Version Modi ed 2 06/24/2019 - Created on. 02/18/2022 - Update to add 2020 model years © 2022 General Motors. All Rights Reserved.