LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2005 >> Escape Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1612 (Steering Column Switches) >> Diagnosis And Testing >> Steering Column Switches >> Pinpoint Tests >> Pinpoint Test G: DTCs B2844 and U2472 >> PINPOINT TEST G: DTCs B2844 AND U2472

PINPOINT TEST G: DTCs B2844 AND U2472

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.
NOTE: Verify that battery voltage is 10 volts or greater.
  1. G1 CHECK THE SJB DTCs 
    • Use the recorded SJB DTCs from the continuous and on-demand self tests.
    • Is DTC B2A20 present? 
  2. G2 CHECK THE IGNITION SWITCH PIDs 
    • Connect the scan tool.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - SJB.
    • Monitor the following ignition switch PIDs while cycling the ignition switch through each position:
      • ECU Derived Ignition State-OFF (IGN_O_ECU)
      • ECU Derived Ignition State-ACC (IGN_A_ECU)
      • ECU Derived Ignition State-RUN (IGN_R_ECU)
      • ECU Derived Ignition State-START (IGN_S_ECU)
    • Does each PID display YES when the ignition switch is moved into the corresponding position and NO when the switch is moved to another position? 
    • Yes  : The condition is not present at this time. INSPECT SJB connectors C2280A and C2280B for corrosion, spread terminals and/or pushed-out pins. REPAIR as necessary. CLEAR the DTCs. REPEAT the self-test.
    • No  : If IGN_A_ECU is displayed YES at all times, Non-Hybrid:  GO to G3  . Hybrid:  GO to  G4.

      If IGN_R_ECU is displayed YES at all times, GO to  G6.

      If IGN_S_ECU displayed YES at all times, GO to PINPOINT TEST F .

      If IGN_O_ECU displayed YES at all times, GO to PINPOINT TEST A .

      If IGN_A_ECU displayed NO at all times, GO to PINPOINT TEST B .

      If IGN_R_ECU displayed NO at all times, GO to PINPOINT TEST C .

      If IGN_S_ECU displayed NO at all times, Non-Hybrid:  GO to PINPOINT TEST D . Hybrid:  GO to PINPOINT TEST E .

  3. G3 CHECK SJB FUSE 43 (10A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: SJB Fuse 43 (10A).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - SJB.
    • Monitor the ignition switch ACC position PID IGN_A_ECU while cycling the ignition switch through each position.
    • Does the PID display YES when the ignition switch is moved through all switch positions? 
    • Yes  : GO to G4  .
    • No  : REPAIR circuit CBP43 (GY). CLEAR the DTCs. REPEAT the self-test.
  4. G4 CHECK SJB FUSE 45 (5A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: SJB Fuse 45 (5A).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - SJB.
    • Monitor the ignition switch ACC position PID IGN_A_ECU while cycling the ignition switch through each position.
    • Does the PID display YES when the ignition switch is moved through all switch positions? 
    • Yes  : GO to G5  .
    • No  : REPAIR circuit CBP45 (YE). CLEAR the DTCs. REPEAT the self-test.
  5. G5 CHECK THE IGNITION SWITCH 
    • Yes  : REPAIR circuit CDC33 (VT/GN). CLEAR the DTCs. REPEAT the self-test.
    • No  : INSTALL a new ignition switch. REFER to IGNITION SWITCH  in this service information. TEST the system for normal operation. CLEAR the DTCs. REPEAT the self-test.
  6. G6 CHECK SJB FUSE 44 (10A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: SJB Fuse 44 (10A).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - SJB.
    • Monitor the ignition switch RUN position PID IGN_R_ECU while cycling the ignition switch through each position.
    • Does the PID display YES when the ignition switch is moved through all switch positions? 
    • Yes  : GO to G7  .
    • No  : REPAIR circuit CBP44 (VT). CLEAR the DTCs. REPEAT the self-test.
  7. G7 CHECK SJB FUSE 42 (10A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: SJB Fuse 42 (10A).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - SJB.
    • Monitor the ignition switch RUN position PID IGN_R_ECU while cycling the ignition switch through each position.
    • Does the PID display YES when the ignition switch is moved through all switch positions? 
    • Yes  : GO to G8  .
    • No  : REPAIR circuit CBP42 (GN). CLEAR the DTCs. REPEAT the self-test.
  8. G8 CHECK SJB FUSE 29 (5A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: SJB Fuse 29 (5A).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - SJB.
    • Monitor the ignition switch RUN position PID IGN_R_ECU while cycling the ignition switch through each position.
    • Does the PID display YES when the ignition switch is moved through all switch positions? 
    • Yes  : GO to G9  .
    • No  : REPAIR circuit CBP29 (WH/VT). CLEAR the DTCs. REPEAT the self-test.
  9. G9 CHECK SJB FUSE 46 (7.5A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: SJB Fuse 46 (7.5A).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - SJB.
    • Monitor the ignition switch RUN position PID IGN_R_ECU while cycling the ignition switch through each position.
    • Does the PID display YES when the ignition switch is moved through all switch positions? 
    • Yes  : GO to G10  .
    • No  : REPAIR circuit CBP46 (WH/BU). CLEAR the DTCs. REPEAT the self-test.
  10. G10 CHECK SJB FUSE 36 (5A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: SJB Fuse 36 (5A).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - SJB.
    • Monitor the ignition switch RUN position PID IGN_R_ECU while cycling the ignition switch through each position.
    • Does the PID display YES when the ignition switch is moved through all switch positions? 
    • Yes  : GO to G11  .
    • No  : REPAIR circuit CBP36 (BU/BN). CLEAR the DTCs. REPEAT the self-test.
  11. G11 CHECK SJB FUSE 35 (10A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: SJB Fuse 35 (10A).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - SJB.
    • Monitor the ignition switch RUN position PID IGN_R_ECU while cycling the ignition switch through each position.
    • Does the PID display YES when the ignition switch is moved through all switch positions? 
    • Yes  : GO to G12  .
    • No  : REPAIR circuit CBP35 (YE/GY). CLEAR the DTCs. REPEAT the self-test.
  12. G12 CHECK SJB FUSE 32 (10A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: SJB Fuse 32 (10A).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - SJB.
    • Monitor the ignition switch RUN position PID IGN_R_ECU while cycling the ignition switch through each position.
    • Does the PID display YES when the ignition switch is moved through all switch positions? 
    • Yes  : For hybrid vehicles, GO to G13  .

      For non-hybrid vehicles, GO to  G14.

    • No  : REPAIR circuit CBP32 (GN/VT). CLEAR the DTCs. REPEAT the self-test.
  13. G13 CHECK SJB FUSE 37 (10A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: SJB Fuse 37 (10A) (if equipped).
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - SJB.
    • Monitor the ignition switch RUN position PID IGN_R_ECU while cycling the ignition switch through each position.
    • Does the PID display YES when the ignition switch is moved through all switch positions? 
    • Yes  : GO to G14  .
    • No  : REPAIR circuit SBP37 (WH). CLEAR the DTCs. REPEAT the self-test.
  14. G14 CHECK THE IGNITION SWITCH RUN OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Disconnect: SJB C2280B.
    • Disconnect: SJB C2280E.
    • Ignition ON.
    • Measure the voltage between SJB C2280E-1, circuit CDC34 (WH/ OG), harness side and ground while moving the ignition switch through all switch positions.
      Fig 1: Measuring Voltage Between SJB C2280E-1, Circuit CDC34 (WH/OG) And Ground
      G06094676Courtesy of FORD MOTOR CO.
    • Is voltage present when the ignition switch is moved through all switch positions? 
    • Yes  : GO to G15  .
    • No  : GO to  G16.
  15. G15 CHECK THE IGNITION SWITCH 
    • Yes  : REPAIR circuit CDC34 (WH/OG). CLEAR the DTCs. REPEAT the self-test.
    • No  : INSTALL a new ignition switch. REFER to IGNITION SWITCH  in this service information. CLEAR the DTCs. REPEAT the self-test.
  16. G16 CHECK FOR CORRECT SJB OPERATION 
    • Ignition OFF.
    • Disconnect: All SJB connectors.
    • Check the SJB connectors for:
      • corrosion.
      • pushed-out pins.
      • spread terminals.
    • Connect: All SJB connectors making sure that they are seated correctly.
    • Make sure the connectors are seated correctly, then operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES -- FUSION, MILAN & MKZ article. CLEAR the DTC. REPEAT the self-test.
    • No  : The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
scientia non olet · About LEMON Manuals