Circuit/System Description
WARNING: This page is about a different car, the 2011 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.
The wake up signal circuit is energized by the hybrid powertrain control module 2 to immediately activate other control modules connected to this circuit when the body control module (BCM) signals the powertrain control module 2 that serial data is required.
Depending on the option content, control modules that may receive the wake up signal are as follows:
- 14 V Power Module
- Battery Charger
- Battery Energy Control Module (BECM)
- Electronic Brake Control Module (EBCM)
- A/C Compressor
- Transmission Control Module (TCM)
- Engine Control Module (ECM)
- Power Inverter Module