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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1417 (Supplemental Inflatable Restraint System) >> Diagnosis And Testing >> Pinpoint Tests - Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Tests >> Pinpoint Test D: DTC B1884 - PAD Warning Lamp Circuit Failure >> Pinpoint Test D: DTC B1884 - Pad Warning Lamp Circuit Failure

Pinpoint Test D: DTC B1884 - Pad Warning Lamp Circuit Failure

WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough Inspection and Verification before proceeding with the Pinpoint Test.
  1. D1 CHECK FOR ON-DEMAND AND CONTINUOUS DTCs 
    WARNING: Restraint system diagnostic tools are for service only. Tools must be removed prior to operating the vehicle over the road. Failure to remove restraint system diagnostic tools could result in injury and possible violation of vehicle safety standards.
    WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
    WARNING: The safety belt pretensioner is a pyrotechnic device. Always wear safety glasses when repairing an air bag equipped vehicle and when handling a safety belt buckle pretensioner or safety belt retractor pretensioner. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury.
    NOTE: After diagnosing or repairing an SRS, the restraint system diagnostic tools must be removed before operating the vehicle over the road  .
    NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
    • Enter the following diagnostic mode on the scan tool: On-Demand Self Test.
    • Enter the following diagnostic mode on the scan tool: Retrieve/Record Continuous DTCs.
    • Was DTC B1884 retrieved during the on-demand self test? 

    Yes  : This is a hard fault. The fault condition is still present. This fault cannot be cleared until is corrected and the DTC is no longer retrieved during the on-demand self test.

    If the PAD indicator does  illuminate, GO to D2.

    If the PAD indicator does not  illuminate, GO to  D4.

    No  : This is an intermittent fault. The fault condition is not present at this time. GO to  D8.

  2. D2 CHECK CIRCUIT 1632 (TN/LB) FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: PAD Indicator C2286.
    • Measure the resistance between PAD indicator C2286-3, circuit 1632 (TN/LB), harness side and ground.
      Fig 1: Measuring Resistance Between Pad Indicator C2286-3, Circuit 1632 And Ground
      G04586285Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 

    Yes  : GO to  D7.

    No  : GO to D3.

  3. D3 CHECK THE RCM  
    • Disconnect: RCM C310a and C310b.
    • Measure the resistance between RCM C310a pin 24, component side and ground.
      Fig 2: Measuring Resistance Between RCM C310a Pin 24 And Ground
      G04586286Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 

    Yes  : REPAIR circuit 1632 (TN/LB). GO to  D9.

    No  : GO to  D7.

  4. D4 CHECK THE PAD INDICATOR LAMP 
    • Key in OFF position.
    • Deactivate the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION .
    • Disconnect: RCM C310a and C310b.
    • Key in ON position.
    • Connect a fused jumper lead between RCM C310a-24, circuit 1632 (TN/LB), harness side and ground.
      Fig 3: Connecting Fused Jumper Lead Between RCM C310a Pin 24, Circuit 1632 (TN/LB) And Ground
      G04586287Courtesy of FORD MOTOR CO.
    • Is the PAD indicator lamp on? 

    Yes  : GO to  D7.

    No  : GO to D5.

  5. D5 CHECK CIRCUIT 1632 (TN/LB) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: PAD Indicator C2286.
    • Measure the resistance between PAD indicator C2286-3, circuit 1632 (TN/LB), harness side and RCM C310a-24, circuit 1632 (TN/LB), harness side.
      Fig 4: Measuring Resistance Between PAD Indicator C2286 Pin 3, Circuit 1632 (TN/LB), Harness Side And RCM C310a Pin 24
      G04586288Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : GO to D6.

    No  : REPAIR circuit 1632 (TN/LB). GO to  D9.

  6. D6 CHECK CIRCUIT 937 (RD/WH) FOR AN OPEN 
    • Key in ON position.
    • Measure the voltage between PAD indicator C2286-1, circuit 937 (RD/WH), harness side and ground.
      Fig 5: Measuring Voltage Between PAD Indicator C2286 Pin 1, Circuit 937 And Ground
      G04586289Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 

    Yes  : INSTALL a new PAD indicator. REFER to PASSENGER AIR BAG DEACTIVATION (PAD) INDICATOR . GO to  D9.

    No  : REPAIR circuit 937 (RD/WH). GO to  D9.

  7. D7 CONFIRM THE RCM FAULT 
    NOTE: Make sure all restraint system diagnostic tools, sensor electrical connectors and the RCM electrical connector are connected before carrying out the on-demand self test. If not, erroneous DTCs will be recorded.
    • Key in OFF position.
    • Connect: PAD Indicator C2286.
    • Connect: RCM C310a and C310b.
    • Repower the system. Do not  prove out the system at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Enter the following diagnostic mode on the scan tool: On-Demand Self Test.
    • Was DTC B1884 retrieved during the on-demand self test? 

    Yes  : INSTALL a new RCM . REFER to RESTRAINTS CONTROL MODULE (RCM) . GO to  D9.

    No  : CHECK for causes of intermittent open or short to ground on circuit 1632 (TN/LB). ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. ACTIVATE other systems in the same wire harness. REPAIR any intermittent concerns found. GO to  D9.

  8. D8 CHECK FOR AN INTERMITTENT FAULT 
    • Key in OFF position.
    • Enter the following diagnostic mode on the scan tool: On-Demand Self Test.
    • Was DTC B1884 retrieved during the on-demand self test? 

    Yes  : This is a hard fault. The fault condition is now present. This fault cannot be cleared until is corrected and the DTC is no longer retrieved during the on-demand self test.

    If the PAD indicator does  illuminate, GO to  D2.

    If the PAD indicator does not  illuminate, GO to  D4.

    No  : CHECK for causes of intermittent open or short to ground on circuit 1632 (TN/LB). ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. ACTIVATE other systems in the same wire harness. REPAIR any intermittent concerns found. GO to D9.

  9. D9 CHECK FOR ADDITIONAL DTCs 
    • Refer to the continuous DTCs recorded during Step  D1.
    • Were any continuous DTCs retrieved during Step   D1 ? 

    Yes  : Do not clear any DTCs until all DTCs have been resolved. GO to the RESTRAINTS CONTROL MODULE (RCM) DIAGNOSTIC TROUBLE CODE (DTC) PRIORITY TABLE  in this article for pinpoint test direction.

    No  : RECONNECT the system. If previously directed to deactivate the system, REACTIVATE the system. REFER to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION . REPOWER the system. REFER to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING . PROVE OUT the system. CLEAR all DTCs.

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