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Home >> Ford >> 2022 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (3 Of 3) >> Diagnosis And Testing >> Pinpoint Test AF - DTC: U3003:16 and U3003:17

Pinpoint Test AF - DTC: U3003:16 and U3003:17

Refer to Supplemental Restraint System for schematic and connector information.

NOTE: Diagnostic Trouble Codes (DTCs) U3003:16 and U3003:17 can be set if the vehicle has been recently jump started, the battery has been recently charged or the battery has been discharged. The battery may become discharged due to excessive load(s) on the charging system from aftermarket accessories or if the battery has been left unattended with the accessories on.

Normal Operation - RCM 

The RCM continuously monitors the input voltage for correct operation. If the RCM detects input voltage below 9.0 volts while a fault is present, or below 6.0 volts, whether or not a fault is present, it stores DTC U3003:16 in memory. If the RCM detects input voltage above 16 volts while a fault is present, or above 18 volts, regardless of fault status, it stores DTC U3003:17 in memory. If the RCM sets DTC U3003:16 or U3003:17, it sends a message to the IPC to illuminate the airbag warning indicator.

Normal Operation - OCSM 

The OCSM continuously monitors the input voltage for correct operation. If the OCSM detects input voltage below 8 volts, it stores DTC U3003:16 in memory. If the OCSM detects input voltage above 18 volts, it stores DTC U3003:17 in memory. If the OCSM sets DTC U3003:16 or U3003:17, it sends a fault message to the RCM. The RCM then sends a message to the IPC to illuminate the airbag warning indicator.

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U3003:16 Battery Voltage: Circuit Voltage Below Threshold This DTC sets if the RCM detects voltage below 9 volts with certain SRS faults present or below 6 volts, whether or not a SRS fault exists.
U3003:17 Battery Voltage: Circuit Voltage Above Threshold This DTC sets if the RCM detects voltage above 16 volts with certain SRS faults present or above 18 volts without a SRS fault.
U3003:16 Battery Voltage: Circuit Voltage Below Threshold This DTC sets if the OCSM detects voltage below 8 volts.
U3003:17 Battery Voltage: Circuit Voltage Above Threshold This DTC sets if the OCSM detects voltage above 18 volts.

Possible Sources 

Visual Inspection and Diagnostic Pre-checks 

PINPOINT TEST A: U3003:16 AND U3003:17 

  1. WARNING: Incorrect repair techniques or actions can cause an accidental Supplemental Restraint System (SRS) deployment. Never compromise or depart from these instructions. Failure to precisely follow all instructions could result in serious personal injury from an accidental deployment.
  2. NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
  3. NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
  4. NOTE: Only disconnect or reconnect SRS components when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS.
  5. NOTE: Install new components only when directed to do so in the pinpoint test.
  6. 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.
  7. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

  8. A1 RETRIEVE ALL CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS) IN ALL MODULES

    WARNING: Before beginning any service procedure, refer to Safety Warnings in General Information . Failure to follow this instruction may result in serious personal injury.

    • Ignition ON.

    • Using a diagnostic scan tool, retrieve ALL Continuous Memory Diagnostic Trouble Codes (CMDTCs).

    Is DTC U3003:16 or U3003:17 present in one or more modules AND are any charging system Diagnostic Trouble Codes (DTCs) present in the PCM? 

    Yes  DIAGNOSE the charging system. REFER to: Charging System - 2.5L Duratec (125kW/170PS) . , or REFER to: Charging System - 2.0L Duratec-HE (110kW/150PS) - MI4 .
    No  GO to  A2

  9. A2 CHECK FOR BECMB (BATTERY ENERGY CONTROL MODULE B) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Review the Diagnostic Trouble Codes (DTCs) recorded in the previous step.

    Were any BECMB Diagnostic Trouble Codes (DTCs) retrieved and recorded? 

    Yes  DIAGNOSE the BECMB Diagnostic Trouble Codes (DTCs). REFER to the BECMB DTC Chart. REFER to: Airbag Supplemental Restraint System (SRS) .
    No  GO to  A3

  10. A3 TEST BATTERY CONDITION

    • Ignition OFF.

    • Carry out the Battery Condition Test. REFER to: BATTERY .

    Did the battery pass the condition test? 

    Yes  If the battery passed the condition test but required a recharge, DIAGNOSE the charging system. REFER to: Charging System - 2.5L Duratec (125kW/170PS) . , or REFER to: Charging System - 2.0L Duratec-HE (110kW/150PS) - MI4 . . CLEAR all Continuous Memory Diagnostic Trouble Codes (CMDTCs). If the battery passed the condition test and did not require a recharge, GO to  A4
    No  INSTALL a new battery. REFER to: Battery - 2.5L Duratec (125kW/170PS) . CLEAR all Continuous Memory Diagnostic Trouble Codes (CMDTCs).

  11. A4 CHECK THE CHARGING SYSTEM VOLTAGE

    • Start the engine.

    • Measure the voltage of the battery.

    • For DTC U3003:17, turn off all accessories while measuring the battery voltage.

    • For DTC U3003:16, turn the headlights ON and HVAC fan on high while measuring the battery voltage.

    Is the voltage between 13 and 15.2 volts? 

    Yes  For DTC U3003:16, GO to  A5 For DTC U3003:17, GO to  A7
    No  DIAGNOSE the charging system. REFER to: Charging System - 2.5L Duratec (125kW/170PS) . , or REFER to: Charging System - 2.0L Duratec-HE (110kW/150PS) - MI4 . CLEAR all Continuous Memory Diagnostic Trouble Codes (CMDTCs).

  12. A5 CHECK FOR HIGH RESISTANCE ON THE IGNITION CIRCUIT TO THE MODULE

    • Ignition OFF.

    • Disconnect BECMB C2518.

    • Disconnect the module with the concern:

      • For the RCM, disconnect C310A and C310B.

      • For the OCSM, disconnect C3043.

    • For the RCM, measure:
      Positive Lead Measurement / Action Negative Lead
      C310A-19
      GFD574529Courtesy of FORD MOTOR COMPANY
      		 C2518-3

    • For the OCSM, measure:
      Positive Lead Measurement / Action Negative Lead
      C3043-1
      GFD574529Courtesy of FORD MOTOR COMPANY
      		 C2518-9

    Is the resistance less than 1 ohm? 

    Yes  GO to  A6
    No  REPAIR the circuit as necessary. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. CLEAR all Continuous Memory Diagnostic Trouble Codes (CMDTCs).

  13. A6 CHECK MODULE GROUND FOR HIGH RESISTANCE

    • For the RCM, measure:
      Positive Lead Measurement / Action Negative Lead
      RCM mounting bracket
      GFD574529Courtesy of FORD MOTOR COMPANY
      		 Ground

    • For the OCSM, measure:
      Positive Lead Measurement / Action Negative Lead
      C3043-4
      GFD574529Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance less than 1 ohm? 

    Yes  GO to  A7
    No  For the RCM, VERIFY there is no corrosion between the RCM and the mounting surface. VERIFY the fasteners are clean and tightened to specification with no corrosion. REPAIR as necessary. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. For the OCSM, REPAIR the circuit. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. CLEAR all Continuous Memory Diagnostic Trouble Codes (CMDTCs).

  14. A7 CHECK FOR MODULE OPERATION

    • Ignition OFF.

    • Disconnect the module with the concern:

      • For the RCM, disconnect C310A and C310B (if not previously disconnected).
      • For the OCSM, disconnect C3043 (if not previously disconnected).

    • Check for the following:

      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary

    • Connect the module with the concern:

      • For the RCM, connect C310A and C310B. Make sure the connector seats correctly and engages the Connector Position Assurance (CPA) lever/lock.
      • For the OCSM, connect C3043. Make sure the connector seats correctly.

    • Connect BECMB C2518.

    Is the concern still present? 

    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 RCM. REFER to: Restraints Control Module (RCM)  . If no Technical Service Bulletins (TSBs) address this concern and DTC U3003:16 or U3003:17 was present in the OCSM, INSTALL a new OCSM. REFER to: Occupant Classification System (OCS) Sensor .
    No  The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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