E 350 V8-5.4L (2008)
Alarm Module: Service and Repair
VEHICLE SECURITY MODULE (VSM)
Removal
CAUTION: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage to the module may result.
NOTE:
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Prior to the removal of the module, it is necessary to upload the module configuration information to a scan tool. This information must be
downloaded into the new VSM after installation.
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The tire pressure monitoring system (TPMS) functionality is integral to the VSM.
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A new VSM is delivered in a "manufacturing mode" with 6 pre-set DTCs. A successful configuration of the VSM, then a successful TPMS sensor
training, then a successful self-test including the clearing of all DTCs is required in order to clear the 6 manufacturing mode DTCs. The 6
manufacturing mode DTCs are:
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B2477 (Module Configuration Failure)
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B2868 (Left Front Tire Pressure Sensor Fault)
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B2869 (Right Front Tire Pressure Sensor Fault)
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B2870 (Right Rear Tire Pressure Sensor Fault)
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B2871 (Left Rear Tire Pressure Sensor Fault)
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C2780 (ECU in Manufacturer Sub-State)
1. NOTE: This step is necessary only if the VSM is being replaced.
Upload the module configuration information from the VSM into the scan tool.
2. Remove the RH A-pillar lower trim panel.
3. Remove the 2 VSM bolts.
4. Disconnect the 2 electrical connectors and remove the VSM.