Circuit/System Verification

Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down.
NOTE: The following setup steps must be performed exactly in order to exercise the contactors.
OPEN the driver door using outside door handle. Leave driver door OPEN.
PRESS and HOLD the brake pedal.
NOTE: The brake pedal must remain depressed throughout the remainder of the contactor steps.
Command the Hybrid/EV Battery Contactors ALL OPEN with a scan tool.
NOTE: DO NOT press the power button and enter Vehicle in Service Mode.
Disconnect the S15 Manual Service Disconnect.
Command the Battery Charging System Negative Contactor OPEN and CLOSED with a scan tool while listening for the contactor to open and close. The KR116A Battery Charging System Negative Contactor should be heard opening and closing.
NOTE: DO NOT use the Release Control button to turn OFF any of the contactors. Once the Release Control button is pushed the Circuit/System Verification will need to be restarted from the beginning.
- If the Battery Charging System Negative Contactor does not open and close
  Refer to Battery Charging System Negative Contactor .
- If the Battery Charging System Contactor does open and close
Command the Battery Charging System Positive Contactor CLOSED and ALL OPEN with a scan tool while listening for the contactor to close and open. The KR116B Battery Charging System Positive Contactor should be heard closing and opening.
- If the Battery Charging System Positive Contactor does not open and close
  Refer to Battery Charging System Positive Contactor .
- If the Battery Charging System Positive Contactor does open and close
Command the Hybrid/EV Battery Multifunction Contactor CLOSED and ALL OPEN with a scan tool while listening for the contactor to close and open. The KR117 Hybrid/EV Battery Multifunction Contactor should be heard opening and closing.
- If the Hybrid/EV Battery Multifunction Contactor does not open and close
  Refer to Hybrid/EV Battery Multifunction Contactor .
- If the Hybrid/EV Battery Multifunction Contactor does open and close
Replace the T18 Battery Charger.