Transit Connect L4-2.0L (2010)
Pinpoint Test G: The Occupant Classification System Module (OCSM) 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 Occupant Classification System Module (OCSM) communicates with the scan tool through the Medium Speed Controller Area Network
(MS-CAN).
This pinpoint test is intended to diagnose the following:
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Fuse
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Wiring, terminals or connectors
-
OCSM
PINPOINT TEST G: THE OCSM DOES NOT RESPOND TO THE SCAN TOOL
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.
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
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/Module Communications Network/Inspection and Verification
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
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G1 CHECK THE OCSM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
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Ignition OFF.
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Depower the SRS. Refer to Restraint Systems.
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Disconnect: OCSM C3159.
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Deactivate the SRS. Refer to Restraint Systems.
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Repower the SRS. Refer to Restraint Systems.
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Ignition ON.
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Measure the voltage between the OCSM C3159-1, circuit 14-JA60 (VT), harness side and ground.
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Is the voltage greater than 10 volts?
Yes
GO to G2.
