Pinpoint Test BM: U024C:00
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- Refer to Wiring Diagrams SUPPLEMENTAL RESTRAINT SYSTEM
for schematic and connector information.
Normal Operation and Fault Conditions
The OCSM uses information contained in messages from the SCMH sent on the HS-CAN2.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition OCSM U024C:00 Lost Communication with Seat Control Module "H": No Sub Type Information This DTC sets if the OCSM does not receive an expected message from the SCMH. Possible Sources
- Network traffic
- OCSM
- SCMH
- WARNING: Do not handle, move or change the original horizontal mounting position of the Restraints Control Module (RCM) while the Restraints Control Module (RCM) is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy® and cause serious personal injury or death.
- NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
- NOTE: SRS components should only be disconnected or reconnected when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS.
- NOTE: Always make sure the correct SRS component is being installed. Parts released for other vehicles may not be compatible even if they appear physically similar. Check the part number listed in the Ford parts catalog to make sure the correct component is being installed. If an incorrect SRS component is installed, Diagnostic Trouble Codes (DTCs) may set.
- BM1 CHECK THE COMMUNICATION NETWORK
-
WARNING: Before beginning any service procedure In this article, refer to Safety warnings in General Information. Failure to follow this instruction may result in serious personal injury.
REFER to: Pyrotechnic Device Health and Safety Precautions .
- Ignition ON.
- Using a diagnostic scan tool, carry out a network test.
Does the SCMH pass the network test?
Yes GO to BM2 No To diagnose no communication with the SCMH, REFER to: Controller Area Network (CAN) Module Communications Network . -
- BM2 CHECK THE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
- Using a diagnostic scan tool, perform OCSM self-test.
- Using a diagnostic scan tool, clear OCSM Diagnostic Trouble Codes (DTCs).
- Wait 10 seconds.
- Using a diagnostic scan tool, perform OCSM self-test.
Is DTC U024C:00 retrieved again?
Yes GO to BM3 No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition. - BM3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE RCM (RESTRAINTS CONTROL MODULE) SELF-TEST
- Using a diagnostic scan tool, perform RCM self-test.
Is DTC U3003:16 or U3003:17 recorded?
Yes GO to Pinpoint Test BD No GO to BM4 - BM4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE OCSM (OCCUPANT CLASSIFICATION SYSTEM MODULE) SELF-TEST
- Using a diagnostic scan tool, perform OCSM self-test.
- Check the recorded Diagnostic Trouble Codes (DTCs) from the OCSM self-test.
Is DTC U3003:16 or U3003:17 recorded?
Yes GO to Pinpoint Test BD No GO to BM5 - BM5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U024C:00 SET IN OTHER MODULES
- Ignition ON.
- Using a diagnostic scan tool, perform self-test for all modules.
Is DTC U024C:00 set in the APIM?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMH. REFER to: Driver Multi-Contour Seat Module [SCMG] . No CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new OCS sensor. REFER to: Occupant Classification System (OCS) Sensor - Vehicles With: Multi-Contour Seats . or REFER to: Occupant Classification System (OCS) Sensor - Vehicles Without: Multi-Contour Seats .