Focus L4-2.0L (2009)
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C6 CHECK FOR CORRECT IC OPERATION
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Disconnect the IC connector.
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Check for:
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corrosion
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damaged pins
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pushed-out pins
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Connect the IC connector and make sure it seats correctly.
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Operate the system and verify the concern is still present.
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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.
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Pinpoint Test D: The Occupant Classification System Module (OCSM) Does Not Respond To The
Scan Tool
Communications Network
Pinpoint Tests
Pinpoint Test D: The Occupant Classification System Module (OCSM) Does Not Respond To The Scan Tool
Refer to Wiring Diagrams Set 14, Module Communications Network for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Refer to Wiring Diagrams Set 46, Supplemental Restraint System for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Normal Operation
The Occupant Classification System Module (OCSM) 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 HS-CAN connection to the OCSM. Voltage for the OCSM is
provided by circuit CBX02 (BN/RD). Circuit GD109 (BK) provides ground.
This pinpoint test is intended to diagnose the following:
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Fuse
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Wiring, terminals or connectors
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OCSM
PINPOINT TEST D: THE OCSM DOES NOT RESPOND TO THE SCAN TOOL
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
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D1 CHECK THE OCSM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
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Ignition OFF.
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Disconnect: OCSM C3285.
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Ignition ON.
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Measure the voltage between the OCSM C3285-1, circuit CBX02 (BN/RD), harness side and ground.
