Ford Ecosport Owners and Service Manuals

Ford Ecosport: Supplemental Restraint System / Diagnosis and Testing - Pinpoint Test - DTC: AH, Vehicles With: Rear Seat Side Airbag

Ford Ecosport 2014-2024 Service and Repair Manual / Body and Paint / Supplemental Restraint System / Diagnosis and Testing - Pinpoint Test - DTC: AH, Vehicles With: Rear Seat Side Airbag

U0154:00

Normal Operation and Fault Conditions

The RCM uses information contained in messages from the OCSM sent on the HS-CAN2 .


  DTC Fault Trigger Conditions


  DTC Description Fault Trigger Conditions
U0154:00 Lost Communication with Restraints Occupant Classification System Module: No Sub Type Information This DTC sets if the RCM does not receive an expected message from the OCSM .

Possible Sources

  • Network traffic
  • OCSM
  • RCM

PINPOINT TEST A: U0154:00
  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.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
A1 CHECK THE COMMUNICATION NETWORK
  •   WARNING: Before beginning any service procedure in this section, refer to Safety Warnings in section 100-00 General Information. Failure to follow this instruction may result in serious personal injury.
    REFER to: Pyrotechnic Device Health and Safety Precautions (100-00 General Information, Description and Operation).
  • Ignition ON.
  • Using a diagnostic scan tool, carry out a network test.

Does the OCSM pass the network test?
Yes GO to A2
No To diagnose no communication with the OCSM ,
REFER to: Communications Network (418-00) .

A2 CHECK THE RCM (RESTRAINTS CONTROL MODULE) CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, perform RCM self-test.
  • Using a diagnostic scan tool, clear RCM Diagnostic Trouble Codes (DTCs).
  • Wait 10 seconds.
  • Using a diagnostic scan tool, perform RCM self-test.

Is DTC U0154:00 retrieved again?
Yes GO to A3
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.

A3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE RCM (RESTRAINTS CONTROL MODULE) SELF-TEST
  • Check the recorded Diagnostic Trouble Codes (DTCs) from the RCM self-test.

Is DTC U3003:16 or U3003:17 recorded?
Yes
REFER to: Pinpoint Test - DTC: AV, Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Diagnosis and Testing).
No GO to A4

A4 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 for recorded Diagnostic Trouble Codes (DTCs) from the OCSM self-test.

Is DTC U3003:16 or U3003:17 recorded?
Yes
REFER to: Pinpoint Test - DTC: AV, Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Diagnosis and Testing).
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 RCM .
REFER to: Airbag Supplemental Restraint System (SRS) - Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Diagnosis and Testing).
REPEAT the RCM self-test. If DTC U0154:00 returns, INSTALL a new OCS sensor.
REFER to: Occupant Classification System (OCS) Sensor - Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Removal and Installation).
REFER to: Occupant Classification System (OCS) Sensor - Vehicles With: Rear Seat Side Airbag (501-20B Supplemental Restraint System, Removal and Installation).


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