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.
2015 Lincoln MKX AWDFACTORY OEM SERVICE PROCEDURE
Occupant Classification System Module (OCSM)
DTC INDEX
| DTC | Description | Action To Take |
|---|---|---|
| B0061:11 | Passenger Seatbelt Tension Sensor: Circuit Short to Ground | This vehicle is not equipped with a passenger safety BTS. If this DTC is retrieved, an incorrect OCSM or OCSM calibration is in use. RETRIEVE all RCM and OCSM DTCs. DIAGNOSE and REPAIR the DTCs that are retrieved. |
| B0061:12 | Passenger Seatbelt Tension Sensor: Circuit Short to Battery | This vehicle is not equipped with a passenger safety BTS. If this DTC is retrieved, an incorrect OCSM or OCSM calibration is in use. RETRIEVE all RCM and OCSM DTCs. DIAGNOSE and REPAIR the DTCs that are retrieved. |
| B0061:13 | Passenger Seatbelt Tension Sensor: Circuit Open | This vehicle is not equipped with a passenger safety BTS. If this DTC is retrieved, an incorrect OCSM or OCSM calibration is in use. RETRIEVE all RCM and OCSM DTCs. DIAGNOSE and REPAIR the DTCs that are retrieved. |
| B00A0:54 | Occupant Classification System: Missing Calibration | GO to Pinpoint Test AH . |
| B00A0:67 | Occupant Classification System: Signal Incorrect After Event | CARRY OUT the Zero Seat Weight Test. REFER to Occupant Classification Sensor (OCS) System Zero Seat Weight Test . |
| B00A0:76 | Occupant Classification System: Wrong Mounting Position | GO to Pinpoint Test AH . |
| B00A0:97 | Occupant Classification System: Component or System Operation Obstructed or Blocked | GO to Pinpoint Test AI . |
| B00C2:12 | Passenger Seat Occupant Classification Sensor "C": Circuit Short To Battery | GO to Pinpoint Test AJ . |
| B00C2:13 | Passenger Seat Occupant Classification Sensor "C": Circuit Open | GO to Pinpoint Test AJ . |
| B00C2:1A | Passenger Seat Occupant Classification Sensor "C": Circuit Resistance Below Threshold | GO to Pinpoint Test AJ . |
| B00C2:49 | Passenger Seat Occupant Classification Sensor "C": Internal Electronic Failure | GO to Pinpoint Test AH . |
| B00C2:81 | Passenger Seat Occupant Classification Sensor "C": Invalid Serial Data Received | REPAIR all other OCSM DTCs first. If no other OCSM DTCs are present, INSTALL a new seat track (includes OCS weight sensor bolts). REFER to Seating . |
| B00C3:12 | Passenger Seat Occupant Classification Sensor "D": Circuit Short To Battery | GO to Pinpoint Test AK . |
| B00C3:13 | Passenger Seat Occupant Classification Sensor "D": Circuit Open | GO to Pinpoint Test AK . |
| B00C3:1A | Passenger Seat Occupant Classification Sensor "D": Circuit Resistance Below Threshold | GO to Pinpoint Test AK . |
| B00C3:49 | Passenger Seat Occupant Classification Sensor "D": Internal Electronic Failure | GO to Pinpoint Test AH . |
| B00C3:81 | Passenger Seat Occupant Classification Sensor "D": Invalid Serial Data Received | REPAIR all other OCSM DTCs first. If no other OCSM DTCs are present, INSTALL a new seat track (includes OCS weight sensor bolts). REFER to Seating . |
| B1193:00 | Crash Event Storage Full and Locked: No Sub Type Information | INSTALL a new passenger seat track assembly with weight sensor bolts. REFER to Inspection and Repair After a Supplemental Restraint System (SRS) Deployment . |
| B1A59:01 | Sensor 5 Volt Supply: General Electrical Failure | If this DTC is retrieved, an incorrect OCSM or OCSM calibration is in use. RETRIEVE all RCM and OCSM DTCs. DIAGNOSE and REPAIR the DTCs that are retrieved. |
| B1A59:11 | Sensor 5 Volt Supply: Circuit Short to Ground | GO to Pinpoint Test AL . |
| U0100:00 | Lost Communication With ECM/PCM "A": No Sub Type Information | U0100:00 sets 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 Occupant Classification System Module (OCSM) as part of repair for DTC U0100:00. REFER to Module Communications Network to diagnose lost communication with the PCM. |
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | U0140:00 sets 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 Occupant Classification System Module (OCSM) as part of repair for DTC U0140:00. REFER to Module Communications Network to diagnose lost communication with the BCM. |
| U0151:00 | Lost Communication With Restraints Control Module: No Sub Type Information | U0151:00 sets 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 for DTC U0151:00. REFER to Module Communications Network to diagnose lost communication with the Restraints Control Module (RCM). |
| U0401:00 | Invalid Data Received From ECM/PCM A: No Sub Type Information | U0401:00 sets 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 for DTC U0401:00. CARRY OUT PCM Self Test. REPAIR any speed-related DTCs. REFER to Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) . |
| U0401:81 | Invalid Data Received From ECM/PCM A: Invalid Serial Data Received | This DTC sets when the OCSM is not receiving the vehicle speed data that it expects from the PCM. The OCSM is not the problem module. Do not install a new OCSM as part of repair for DTC U0401:81. CARRY OUT PCM Self Test. REPAIR any DTCs. REFER to DTC Chart in Electronic Engine Controls or Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) . |
| U0422:00 | Invalid Data Received From Body Control Module: No Sub Type Information | U0422:00 sets in a module that is reporting a communication fault from another module on the data bus. The OCSM is not the problem module. Do not install a new OCSM as part of repair for DTC U0422:00. CARRY OUT BCM self-test. REPAIR any ignition switch or communication-related DTCs. REFER to DTC Chart in Multifunction Electronic Modules . |
| U0422:81 | Invalid Data Received From Body Control Module: Invalid Serial Data Received | U0422:81 sets when the OCSM is not receiving the ignition status data that it expects from the BCM. The OCSM is not the problem module. Do not install a new OCSM as part of repair for DTC U0422:81. CARRY OUT the BCM self-test. REPAIR any ignition switch or communication-related DTCs. REFER to DTC Chart in Multifunction Electronic Modules . |
| U0452:00 | Invalid Data Received From Restraints Control Module: No Sub Type Information | U0452:00 sets in a module that is reporting a communication fault from another module on the data bus. The OCSM is not the problem module. Do not install a new OCSM as part of repair for DTC U0452:00. CARRY OUT the RCM self-test. REPAIR any SRS -related DTCs. REFER to Restraints Control Module (RCM) DTC Chart . |
| U0452:81 | Invalid Data Received From Restraints Control Module: Invalid Serial Data Received | U0452:81 when the OCSM is not receiving SRS data that it expects from the RCM. The OCSM is not the problem module. Do not install a new OCSM as part of repair for DTC U0452:81. CARRY OUT the RCM self-test. REPAIR any SRS -related DTCs. REFER to Restraints Control Module (RCM) DTC Chart . |
| U200D:12 | Control Module Output Power A: Circuit Short To Battery | GO to Pinpoint Test AM . |
| U200E:11 | Control Module Output Power B: Circuit Short To Ground | If this DTC is retrieved, an incorrect OCSM or OCSM calibration is in use. RETRIEVE all RCM and OCSM DTCs. DIAGNOSE and REPAIR the DTCs that are retrieved. |
| U200E:12 | Control Module Output Power B: Circuit Short To Battery | If this DTC is retrieved, an incorrect OCSM or OCSM calibration is in use. RETRIEVE all RCM and OCSM DTCs. DIAGNOSE and REPAIR the DTCs that are retrieved. |
| U200E:1A | Control Module Output Power B: Circuit Resistance Below Threshold | If this DTC is retrieved, an incorrect OCSM or OCSM calibration is in use. RETRIEVE all RCM and OCSM DTCs. DIAGNOSE and REPAIR the DTCs that are retrieved. |
| U3000:49 | Control Module: Internal Electronic Failure | REPAIR all other OCSM DTCs first. REPEAT the self-test. If U3000:49 returns, INSTALL a new Occupant Classification System Module (OCSM). REFER to Occupant Classification System Module (OCSM) - Manual Seat Track or Occupant Classification System Module (OCSM) - Power Seat Track . |
| U3000:53 | Control Module: Deactivated | CLEAR all OCSM DTCs and REPEAT the self-test. If DTC U3000:53 returns, INSTALL a new Occupant Classification System Module (OCSM). REFER to Occupant Classification System Module (OCSM) - Manual Seat Track or Occupant Classification System Module (OCSM) - Power Seat Track . |
| U3000:54 | Control Module: Missing Calibration | CARRY OUT the OCS Reset. REFER to Occupant Classification Sensor (OCS) System Reset . |
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to Pinpoint Test AD . |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to Pinpoint Test AD . |
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.