Expedition 2WD V8-5.4L (2009)
-
Measure the resistance between the RCM C310b-18, circuit VDB04 (WH/BU), harness side and the Data Link Connector (DLC) C251-6, circuit
VDB04 (WH/BU), harness side.
-
Measure the resistance between the RCM C310b-17, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness
side.
-
Are the resistances less than 5 ohms?
Yes
CONNECT the negative battery cable. GO to D5.
No
REPAIR the circuit in question. CONNECT the negative battery cable. REACTIVATE the SRS. REFER to Air Bag Systems. CLEAR the DTCs.
REPEAT the network test with the scan tool.
-------------------------------------------------
D5 CHECK FOR CORRECT RCM OPERATION
-
Disconnect all the RCM connectors.
-
Check for:
-
corrosion
-
damaged pins
-
pushed-out pins
-
Connect all the RCM connectors and make sure they seat correctly.
-
Operate the system and verify the concern is still present.
-
Is the concern still present?
Yes
INSTALL a new RCM. REACTIVATE the SRS. REFER to Air Bag Systems. 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. REACTIVATE the SRS. REFER to
Air Bag Systems. CLEAR the DTCs. REPEAT the network test with the scan tool.
-------------------------------------------------
Pinpoint Test E: The 4X4 Control Module Does Not Respond To The Scan Tool
Communications Network
Pinpoint Tests
Pinpoint Test E: The 4X4 Control Module Does Not Respond To The Scan Tool
