F 250 2WD Super Duty V8-5.4L (2008)
A3-A4
Test B: The ABS Module Does Not Respond To The Scan Tool
PINPOINT TEST B: THE ABS MODULE DOES NOT RESPOND TO THE SCAN TOOL
Normal Operation
The ABS module 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 ABS module. The ABS module shares the HS-CAN network with the PCM,
trailer brake control (TBC) module (if equipped), instrument cluster, restraints control module (RCM), transmission control module (TCM) (diesel
engine only, if equipped), variable geometry turbocharger (VGT) actuator (diesel engine only) and the supplemental heater control module (diesel
engine only, if equipped). Voltage for the ABS module is provided by circuits CBP34 (VT/BN), SBB09 (RD) and SBB18 (YE/RD). Ground is
provided by circuit GD163 (BK/GY).
This pinpoint test is intended to diagnose the following:
-
Fuse
-
Wiring, terminals or connectors
-
ABS module
