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Home >> Ford >> 2012 >> Explorer Limited, 3.5 8, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 168 (Automatic Transmission External Controls) >> Diagnosis And Testing >> External Controls >> Pinpoint Tests >> Pinpoint Test C: DTC P0815, P0816 >> Pinpoint Test B: P0815, P0816

Pinpoint Test B: P0815, P0816

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  1. B1 RETRIEVE AND RECORD ALL DTCS 
    • Ignition ON.
    • Using a scan tool, retrieve DTCs.
    • Is DTC P0815 set? 
    • Yes  : CLEAR the DTC. PERFORM the KOEO self-test. If DTC P0815 returns, GO to B2.
    • No  : CLEAR the DTC. PERFORM the KOEO self-test. If DTC P0816 returns, GO to  B7.
  2. B2 CHECK THE UPSHIFT SIGNAL CIRCUIT FOR VOLTAGE 
    • Ignition OFF.
    • Disconnect: Transmission Shift Selector C307.
    • Inspect for damaged or pushed-out terminals.
    • Ignition ON.
    • Measure the voltage  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C307-9 CET35 (BN) - Ground
      Fig 1: Identifying Transmission Shift Selector Connector Terminals
      G08644873Courtesy of FORD MOTOR CO.
    • Is the voltage greater that 10 volts? 
    • Yes  : GO to  B5.
    • No  : GO to B3.
  3. B3 CHECK THE UPSHIFT SIGNAL CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: PCM C175B (5.0L).
    • Disconnect: PCM C1381B (3.7L Ti-VCT).
    • Inspect for damaged or pushed-out terminals.
    • Measure the resistance  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C307-9 CET35 (BN) C175B-23 CET35 (BN)
      Fig 2: Identifying Transmission Shift Selector And PCM Connector Terminals
      G08615102Courtesy of FORD MOTOR CO.
    • Measure the resistance  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C307-9 CET35 (BN) C1381B-23 CET35 (BN)
      Fig 3: Identifying Transmission Shift Selector And PCM Connector Terminals
      G08615102Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to B4.
    • No  : REPAIR the circuit.
  4. B4 CHECK THE UPSHIFT SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    • Measure the resistance  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C307-9 CET35 (BN) - Ground
      Fig 4: Identifying Transmission Shift Selector Connector Terminals
      G08644876Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
  5. B5 CHECK THE SIGNAL RETURN CIRCUIT FOR AN OPEN 
    • Measure the voltage  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C307-9 CET35 (BN) C307-11 RE405 (GN/WH)
      Fig 5: Identifying Transmission Shift Selector Connector Terminals
      G08644877Courtesy of FORD MOTOR CO.
    • Is voltage greater than 10 volts? 
    • Yes  : GO to B6.
    • No  : REPAIR the circuit. If no open is found, INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS . PROGRAM the PCM with the latest calibration level. PERFORM the Solenoid Body Strategy Data Download procedure. REFER to SOLENOID BODY STRATEGY .
  6. B6 CHECK THE SELECTSHIFT™ SWITCH 
    • Disconnect: SelectShift™ Switch from the Selector Lever Assembly.
    • Measure the component side resistance  while cycling the SelectShift™ upshift switch.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      9 - 11 -
    • Is the resistance less than 1.5 ohms when applied and greater than 10, 000 ohms when released? 
  7. B7 CHECK THE DOWNSHIFT SIGNAL CIRCUIT FOR VOLTAGE 
    • Ignition OFF.
    • Disconnect: Transmission Shift Selector C307.
    • Inspect for damaged or pushed-out terminals.
    • Ignition ON.
    • Measure the voltage  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C307-10 CET42 (GN/VT) - Ground
      Fig 6: Identifying Transmission Shift Selector Connector Terminals
      G08644878Courtesy of FORD MOTOR CO.
    • Is the voltage greater that 10 volts? 
    • Yes  : GO to  B10.
    • No  : GO to B8.
  8. B8 CHECK THE DOWNSHIFT SIGNAL CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: PCM C175B (5.0L).
    • Disconnect: PCM C1381B (3.7L Ti-VCT).
    • Inspect for damaged or pushed-out terminals.
    • Measure the resistance  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C307-10 CET42 (GN/VT) C175B-24 CET42 (GN/VT)
      Fig 7: Identifying Transmission Shift Selector And PCM Connector Terminals
      G08615102Courtesy of FORD MOTOR CO.
    • Measure the resistance  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C307-10 CET42 (GN/VT) C1381B-24 CET42 (GN/VT)
      Fig 8: Identifying Transmission Shift Selector And PCM Connector Terminals
      G08615102Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to B9.
    • No  : REPAIR the circuit.
  9. B9 CHECK THE DOWNSHIFT SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    • Measure the resistance  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C307-10 CET42 (GN/VT) - Ground
      Fig 9: Identifying Transmission Shift Selector Connector Terminals
      G08644881Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
  10. B10 CHECK THE SIGNAL RETURN CIRCUIT FOR AN OPEN 
    • Measure the voltage  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C307-10 CET42 (GN/VT) C307-11 RE405 (GN/WH)
      Fig 10: Identifying Transmission Shift Selector Connector Terminals
      G08644882Courtesy of FORD MOTOR CO.
    • Is voltage greater than 10 volts? 
    • Yes  : GO to B11.
    • No  : REPAIR the circuit. If no open is found, INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS . PROGRAM the PCM with the latest calibration level. PERFORM the Solenoid Body Strategy Data Download procedure. REFER to SOLENOID BODY STRATEGY .
  11. B11 CHECK THE SELECTSHIFT™ SWITCH 
    • Disconnect: SelectShift™ Switch from the Selector Lever Assembly.
    • Measure the component side resistance  while cycling the SelectShift™ downshift switch.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      10 - 11 -
    • Is the resistance less than 1.5 ohms when applied and greater than 10, 000 ohms when released? 
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