Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2009 Ford Flex SEFACTORY OEM SERVICE PROCEDURE
Occupant Classification System Module (OCSM) DTC Chart
DTC CHART
| DTC | Description | Action To Take |
|---|---|---|
| B1013 | Occupant Classification System Calibration Fault | Go To PINPOINT TEST B . |
| B1231 | Event Threshold Exceeded | This DTC indicates the vehicle has been involved in a collision that required deployment. INSTALL a new passenger seat track with OCS weight sensor bolts. REFER to SEATING and INSPECTION AND REPAIR AFTER A SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPLOYMENT . |
| B1317 | Battery Voltage High | Go To PINPOINT TEST E . |
| B1318 | Battery Voltage Low | Go To PINPOINT TEST E . |
| B1342 | ECU is Faulted | Go To PINPOINT TEST F . |
| B2290 | Occupant Classification System Fault | Go To PINPOINT TEST I . |
| B229B | Occupant Classification System Obstruction |
NOTE:
If no on-demand or continuous DTC is present in the RCM
and DTC B229B is only present in the OCSM
as continuous, RESOLVE and CLEAR all OCSM
DTCs and PROVE OUT the Supplemental Restraint System (SRS). Go To PINPOINT TEST J
. |
| C1941 | Zero Seat Weight Test Failure | Can only be reported when carrying out Occupant Classification Sensor (OCS) System Zero Seat Weight. REFER to OCCUPANT CLASSIFICATION SENSOR (OCS) SYSTEM ZERO SEAT WEIGHT TEST . |
| U0100 | Lost Communication With PCM | REFER to MODULE COMMUNICATIONS NETWORK to diagnose the communication concern. |
| U0151 | Lost Communication With Restraints Control Module | REFER to MODULE COMMUNICATIONS NETWORK to diagnose the communication concern. |
| U2023 | Fault Received From External Node | DTC is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES for a list of all DTCs. |
| U2050 | No Application Present | INSTALL a new OCSM . REFER to OCCUPANT CLASSIFICATION SYSTEM MODULE (OCSM) - MANUAL SEAT TRACK or OCCUPANT CLASSIFICATION SYSTEM MODULE (OCSM) - POWER SEAT TRACK . |
| U2051 | One or More Calibration Files Missing/Corrupt | INSTALL a new OCSM . REFER to OCCUPANT CLASSIFICATION SYSTEM MODULE (OCSM) - MANUAL SEAT TRACK or OCCUPANT CLASSIFICATION SYSTEM MODULE (OCSM) - POWER SEAT TRACK . |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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