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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 161 (Supplemental Restraint System) >> Diagnosis And Testing >> Airbag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Test - Restraints Control Module (RCM) >> Pinpoint Test R: DTCs B1317, B1318, U3003:16 and U3003:17 >> PINPOINT TEST R: DTCs B1317, B1318, U3003:16 and U3003:17

PINPOINT TEST R: DTCs B1317, B1318, U3003:16 and U3003:17

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Always tighten the fasteners of the restraints control module (RCM) and impact sensor (if equipped) to the specified torque. Failure to do so may result in incorrect restraint system operation, which increases the risk of personal injury or death in a crash.
NOTE: Use the correct probe adapter(s) from the Flex Probe Kit when taking measurements. Failure to use the correct probe adapter(s) may damage the connector.
Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
NOTE: Supplemental Restraint System (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 Catalog Advantage™ or equivalent to make sure the correct component is being installed. If an incorrect SRS component is installed, DTCs may set.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
  1. R1 RETRIEVE ALL CMDTCs IN ALL MODULES 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - ALL CMDTCs.
    • Is DTC B1317, B1318, U3003:16 or U3003:17 present in one or more modules AND are any charging system DTCs retrieved from the PCM? 
    • Yes  : REFER to CHARGING SYSTEM to diagnose the charging system.
    • No  : GO to R2.
  2. R2 TEST THE BATTERY CONDITION 
    • Yes  : If the battery passed the condition test but required a recharge, REFER to CHARGING SYSTEM to diagnose the charging system. CLEAR all Continuous Memory Diagnostic Trouble Codes (CMDTCs). TEST the system for normal operation.

      If the battery passed the condition test and did not require a recharge, GO to R3.

    • No  : INSTALL a new battery. CLEAR all CMDTCs. TEST the SRS for normal operation.
  3. R3 CHECK THE CHARGING SYSTEM VOLTAGE 
    NOTE: Do not allow the engine speed to increase above 2, 000 rpm while performing this step or the generator may self excite and result in default charging system output voltage. If engine speed goes above 2, 000 rpm, shut the vehicle OFF and restart the engine before performing this step.
    • Measure the voltage of the battery:
      • For DTC B1317 or U3003:17, turn off all accessories and run the engine at 1, 500 rpm for a minimum of 2 minutes while measuring battery voltage.
      • For DTC B1318 or U3003:16, turn on headlights and HVAC fan on high and run engine at 1, 500 rpm for a minimum of 2 minutes while measuring battery voltage.
        Fig 1: Checking Charging System Voltage
        G06544266Courtesy of FORD MOTOR CO.
    • Is the voltage between 13 and 15.2 volts? 
    • Yes  : For DTC B1318 or U3003:16, GO to R4.

      For DTC B1317 or U3003:17, GO to  R6.

    • No  : REFER to CHARGING SYSTEM to diagnose the charging system. CLEAR all CMDTCs. TEST the SRS for normal operation.
  4. R4 CHECK FOR OPEN IGNITION CIRCUIT TO THE MODULE 
    • Ignition OFF.
    • Depower the SRS. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: RCM C2041A and C2041B (if DTC U3003:16 or U3003:17 is present in the RCM).
    • Disconnect: OCSM C3043 (if DTC U3003:16 or U3003:17 is present in the OCSM).
    • For the RCM, measure the resistance between RCM C2041A-13, circuit CBP31 (BU/OG), harness side and Smart Junction Box (SJB) fuse 31.
      Fig 2: Measuring Resistance Between RCM C2041A-13, Circuit CBP31 (BU/OG) And Smart Junction Box Fuse 31
      G07991776Courtesy of FORD MOTOR CO.
    • For the OCSM, measure the resistance between OCSM C3043-1, circuit CBP46 (WH/BU), harness side and SJB fuse 46.
      Fig 3: Measuring Resistance Between OCSM C3043-1, Circuit CBP46 (WH/BU) And SJB Fuse 46
      G07991777Courtesy of FORD MOTOR CO.
    • Is the resistance less than 1 ohm? 
    • Yes  : GO to R5.
    • No  : REPAIR the circuit as necessary. Refer to appropriate "OEM Connector Repair Procedures" for information. CLEAR all CMDTCs. TEST the SRS for normal operation.
  5. R5 CHECK FOR OPEN GROUND TO THE MODULE 
    • Measure the resistance of the ground circuit:
      • For the RCM, measure the resistance between the RCM case and a good ground.
      • For the OCSM, measure the resistance between OCSM C3043-4, circuit GD138 (BK/WH), harness side and ground.
        Fig 4: Checking Ground To Module For Open
        G07991778Courtesy of FORD MOTOR CO.
    • Is the resistance less than 1 ohm? 
    • Yes  : GO to  R6.
    • No  : For the RCM, VERIFY there is no corrosion between the RCM case and mounting. VERIFY the fasteners are clean and tightened to specification with no corrosion. REPAIR as necessary. Refer to appropriate "OEM Connector Repair Procedures" for information.

      For the OCSM, REPAIR circuit GD138 (BK/WH). Refer to appropriate "OEM Connector Repair Procedures" for information.

      CLEAR all CMDTCs. TEST the SRS for normal operation.

  6. R6 CHECK FOR MODULE OPERATION 
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