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Home >> Ford >> 2011 >> Taurus SEL, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Anti-Theft System - Passive Anti-Theft System >> Diagnosis And Testing >> Anti-Theft - With Intelligent Access (IA) >> Pinpoint Tests >> Pinpoint Test P: DTC B125D:11 Or DTC B125D:15 >> Pinpoint Test P: DTC B125D:11 Or DTC B125D:15

Pinpoint Test P: DTC B125D:11 Or DTC B125D:15

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. P1 CHECK THE START/STOP SWITCH PIDs 
    • Enter the following diagnostic mode on the scan tool: RFA Module DataLogger.
    • Monitor RFA module PIDs (Crk_Fact_B1 and Crk_Fact_B2) while pressing the start/stop switch.
    • Do both PIDs read YES when the switch is pressed? 
  2. P2 CHECK THE START/STOP SWITCH RUN LED 
    • Ignition OFF.
    • Disconnect: Start/Stop Switch C2195.
    • Check the start/stop run LED between the start/stop switch C2195 pin 2, component side and the start/stop switch C2195 pin 1, component side.
      Fig 1: Checking Start/Stop Run Led Between Start/Stop Switch C2195 Pin 2 And Start/Stop Switch C2195 Pin 1
      G06284242Courtesy of FORD MOTOR CO.
    • Does the run LED pass the diode check? 
    • Yes  : GO to P3.
    • No  : INSTALL a new start/stop switch. REFER to STEERING COLUMN SWITCHES Article. CLEAR the DTCs. REPEAT the self-test.
  3. P3 CHECK THE START/STOP RUN LED OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Connect: Start/Stop Switch C2195.
    • Ignition ON.
    • Disconnect: RFA Module C2153d.
    • Does the start/stop switch run LED continue to remain illuminated? 
    • Yes  : REPAIR circuit CPK36 (VT/BN) for a short to voltage. CLEAR the DTCs. REPEAT the self-test.
    • No  : GO to P4.
  4. P4 CHECK THE START/STOP RUN LED OUTPUT CIRCUIT FOR AN OPEN OR SHORT TO GROUND 
    • Ignition OFF.
    • Disconnect: Start/Stop Switch C2195.
    • Measure the resistance between the start/stop switch C2195-2, circuit CPK36 (VT/BN), harness side and the RFA module 2153d-8, circuit CPK36 (VT/BN), harness side; and between the start/stop switch C2195-2, circuit CPK36 (VT/BN), harness side and ground.
      Fig 2: Checking Start/Stop Run Led Output Circuit For Open Or Short To Ground
      G07796768Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the start/stop switch and the RFA module; and greater than 10, 000 ohms between the start/stop switch and ground? 
    • Yes  : GO to P5.
    • No  : REPAIR the circuit for an open or short to ground. CLEAR the DTCs. REPEAT the self-test.
  5. P5 CHECK FOR CORRECT RFA MODULE OPERATION 
    • Disconnect all the RFA module connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect all the RFA module connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes  : INSTALL a new RFA module. REFER to MULTIFUNCTION ELECTRONIC MODULE Article. TEST the system for normal operation.
    • 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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