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.
2011 Ford Escape Hybrid, AWDFACTORY OEM SERVICE PROCEDURE
Occupant Classification System Module (OCSM)
OCCUPANT CLASSIFICATION SYSTEM MODULE (OCSM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action To Take |
|---|---|---|
| B1231 | Event Threshold Exceeded (Crash Data Memory Full) | INSPECT the passenger seat for damage. REFER to INSPECTION AND REPAIR AFTER A SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPLOYMENT in this service information. |
| B1317 | Battery Voltage High | GO to PINPOINT TEST Y . |
| B1318 | Battery Voltage Low | GO to PINPOINT TEST Y . |
| B1342 | ECU is Faulted | INSTALL an Occupant Classification System (OCS) service kit. REFER to OCCUPANT CLASSIFICATION SENSOR - SERVICE KIT in this service information. |
| B2290 | Occupant Classification System Fault | GO to PINPOINT TEST AC . |
| B2909 | Belt Tension Sensor Fault | GO to PINPOINT TEST AD . |
| C1941 | Zero Seat Weight Test Failure | Can only be reported when carrying out System Reset. GO to PINPOINT TEST AC . |
| U0151 | Lost Communication with Restraints Control Module (RCM) |
NOTE:
The DTC will set in a module that is reporting a communication fault from another module on the data bus. The module that reports the fault is not the problem module. Do not install a new OCSM
as part of repair. REFER to
MODULE COMMUNICATIONS NETWORK
article to diagnose the RCM
. RCM
does not respond to the scan tool. |
| U2050 | No Application Present | INSTALL a new OCS system service kit. REFER to OCCUPANT CLASSIFICATION SENSOR - SERVICE KIT in this service information. |
| U2051 | One or More Calibration Files Missing/Corrupt | INSTALL a new OCS system service kit. REFER to OCCUPANT CLASSIFICATION SENSOR - SERVICE KIT in this service information. |
Factory Service Tools
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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.