Crown Victoria V8-4.6L Flex Fuel (2008)
H3-H4
Test I: Intermittent No High Speed Controller Area Network (HS-CAN) Communication, One or
More Modules Are Not Respond
PINPOINT TEST I: INTERMITTENT NO HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) COMMUNICATION, ONE OR
MORE MODULES ARE NOT RESPONDING DURING NETWORK TEST
Normal Operation
An open circuit VDB04 (WH/BU) (HS-CAN +) or VDB05 (WH) (HS-CAN -) may cause intermittent or unreliable communication to all modules on
the HS-CAN. The HS-CAN network is used for communication between the following modules:
-
ABS module
-
Instrument cluster
-
Fire suppression module (police only, if equipped)
-
PCM
-
Vehicle dynamics module (VDM)
In the event that one of the 2 network circuits (HS-CAN + or HS-CAN -) becomes open to a module on the network, unreliable network
