Fusion FWD V6-3.0L (2009)
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Is the voltage greater than 10 volts?
Yes
GO to D3.
No
VERIFY the Smart Junction Box (SJB) fuse 25 (7.5A) is OK. If OK, REPAIR the circuit. REACTIVATE the SRS. REFER to Air Bag Systems. CLEAR
the DTCs. REPEAT the network test with the scan tool. If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short.
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D3 CHECK THE RCM CASE GROUND
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Ignition OFF.
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Disconnect: Negative Battery Cable.
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Measure the resistance between the RCM case and a good chassis ground.
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Is the resistance less than 5 ohms?
Yes
GO to D4.
No
REPAIR the RCM case ground as necessary. REACTIVATE the SRS. REFER to Air Bag Systems. CLEAR the DTCs. REPEAT the network test with
the scan tool.
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D4 CHECK THE HS-CAN CIRCUITS BETWEEN THE RCM AND THE DLC FOR AN OPEN
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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.
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Measure the resistance between the RCM C310b-17, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness
side.
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Are the resistances less than 5 ohms?
Yes
