Operation CHARM: Car repair manuals for everyone.
Home >> Chevrolet >> 2011 >> Volt L4-1.4L Elect >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Reading and Clearing Diagnostic Trouble Codes
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Reading and Clearing Diagnostic Trouble Codes




Clear Secured High Voltage DTCs

The Hybrid/EV Battery Pack Clear Secured High Voltage DTCs procedure must be completed when the following components are replaced:

Hybrid/EV Powertrain Control Module 2
Hybrid/EV Battery Energy Control Module
Hybrid/EV Battery Interface Control Module
Hybrid/EV Battery Pack

The Hybrid/EV Powertrain Control Module 2 Clear Secured High Voltage DTCs procedure can be completed with a scan tool using the following steps:

Install the scan tool to the data link connector.

Note: A command reject may appear on the scan tool after the first Hybrid/EV Battery Pack Clear Secured High Voltage DTCs request. Ignore this command reject.

Vehicle in Service Mode, select Hybrid/EV Battery Pack Clear Secured High Voltage DTCs in the Hybrid/EV Powertrain Control Module 2 Control Functions list.
Follow the scan tool directions to complete the procedure.
Vehicle OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down.
Vehicle in Service Mode select Hybrid/EV Battery Pack Clear Secured High Voltage DTCs in the Hybrid/EV Powertrain Control Module 2 Control Functions list.
Follow the scan tool directions to complete the procedure.
Clear any DTCs that may be set.
pro multis · About Operation CHARM