Expedition 2WD V8-5.4L (2009)
-------------------------------------------------
C6 CHECK FOR CORRECT IC OPERATION
-
Disconnect the IC connector.
-
Check for:
-
corrosion
-
damaged pins
-
pushed-out pins
-
Connect the IC connector and make sure it seats correctly.
-
Operate the system and verify the concern is still present.
-
Is the concern still present?
Yes
INSTALL a new IC. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the
network test with the scan tool.
-------------------------------------------------
Pinpoint Test D: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool
Communications Network
Pinpoint Tests
Pinpoint Test D: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool
Refer to Wiring Diagram Set 14, Module Communications Network for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Refer to Wiring Diagram Set 46, Supplemental Restraint System for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams
By Number
Normal Operation
The Restraints Control Module (RCM) 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 RCM. Voltage for the RCM is provided by circuit CBP32
(GN/VT), and the RCM is case grounded.
This pinpoint test is intended to diagnose the following:
-
Fuse
-
Wiring, terminals or connectors
-
Case ground open
-
RCM
PINPOINT TEST D: THE RCM DOES NOT RESPOND TO THE SCAN TOOL
WARNING: Never probe the electrical connectors on air bag, safety canopy or side air curtain modules. Failure to follow this instruction may
result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
WARNING: Never probe the electrical connectors on safety belt buckle/retractor pretensioners or adaptive load limiting retractors. Failure to
follow this instruction may result in the accidental deployment of the safety belt pretensioners or adaptive load limiting retractors, which
increases the risk of serious personal injury or death.
NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the Pinpoint
Test. See: Initial Inspection and Diagnostic Overview/Communications Network/Inspection And Verification
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
