E 150 V8-5.4L (2008)
MS-CAN Communication Fault Chart
HS-CAN
The HS-CAN uses an unshielded twisted pair cable of data (+) and data (-) circuits. The data (+) and the data (-) circuits are each regulated to
approximately 2.5 volts during neutral or rested network traffic. As bus messages are sent on the data (+) circuit, voltage is increased by
approximately 1.0 volt. Inversely, the data (-) circuit is reduced by approximately 1.0 volt when a bus message is sent. Multiple bus messages can be
sent over the network CAN circuits allowing multiple modules to communicate with each other and designed for real time information transfer and
control. The HS-CAN will not communicate while certain faults are present, but will operate with diminished performance with other faults present.
The HS-CAN bus may remain operational when 1 of the 2 termination resistors are not present.
The HS-CAN operates at a maximum data transfer speed of 500 Kbps and is designed for real time information transfer and control.
The following modules are on the HS-CAN:
-
ABS module
-
Instrument cluster (IC)
-
PCM
-
Restraints control module (RCM)
The following fault chart describes the specific HS-CAN failures and their resulting symptom:
