Test R: The Power Liftgate Module Does Not Respond To The Scan Tool

PINPOINT TEST R: THE POWER LIFTGATE MODULE DOES NOT RESPOND TO THE SCAN TOOL

R1:

R1-R3:

R3-R4:

Normal Operation
The power liftgate module communicates with the scan tool through the medium speed controller area network (MS-CAN). Circuits VDB06 (GY/OG) (MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the power liftgate module. The power liftgate module shares the MS-CAN network with the instrument cluster, the smart junction box (SJB), the electronic automatic temperature control (EATC) module (if equipped), the audio unit, the THX(R) amplifier (if equipped), the satellite radio receiver (if equipped), the parking aid module (if equipped), the digital versatile disc (DVD) player (if equipped), the driver seat module (DSM) (if equipped), and the climate controlled seat module (if equipped). Voltage for the power liftgate module is provided by circuits SBP14 (BN/RD) and SBB59 (BU/RD). Circuit GD149 (BK/GY) provides ground.

This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Power liftgate module