Mustang V8-4.6L (2009)
Yes
GO to G7.
No
REPAIR the circuit. REACTIVATE the SRS. REFER to Air Bag Systems. CLEAR the DTCs. REPEAT the network test with the scan tool.
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G7 CHECK THE ISO CIRCUIT BETWEEN THE RCM AND THE DLC FOR AN OPEN
-
Measure the resistance between the RCM C2041a-11, circuit 70 (LB/WH), harness side and the Data Link Connector (DLC) C251-7, circuit 70
(LB/WH), harness side.
-
Is the resistance less than 5 ohms?
Yes
GO to G8.
No
REPAIR the circuit in question. REACTIVATE the SRS. REFER to Air Bag Systems. CLEAR the DTCs.
REPEAT the network test with the scan tool.
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G8 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.
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Pinpoint Test H: Intermittent No Medium Speed Controller Area Network (MS-CAN)
Communication, Communication Can Be Intermittent
Communications Network
Pinpoint Tests