Fusion FWD L4-2.3L VIN Z (2007)
A3-A4
Normal Operation
The PCM communicates with the scan tool through the high speed controller area network (HS-CAN). Circuits VDB04 (WH/BU) (HS-CAN +) and
VDB05 (WH) (HS-CAN -) provide the network connection to the PCM. The PCM shares the HS-CAN network with the transmission control module
(TCM), the anti-lock brake system (ABS) module, the restraints control module (RCM), the four wheel drive (4WD) control module (if equipped), the
occupant classification sensor module and the instrument cluster.
Possible Causes
-
Circuit VDB04 (WH/BU) open (HS-CAN +)
-
Circuit VDB05 (WH) open (HS-CAN -)
-
PCM
Test B: The Transmission Control Module (TCM) Does Not Respond To The Scan Tool
PINPOINT TEST B: THE TRANSMISSION CONTROL MODULE (TCM) DOES NOT RESPOND TO THE SCAN TOOL