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Pinpoint Test E : P2535 (Without Push Button Start)

WARNING: This page is about a different car, the 2019 Ford F-350 Super Duty and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

  1. E1 CHECK THE CRANK DETECT CIRCUIT FOR A SHORT TO VOLTAGE WITH THE PCM (POWERTRAIN CONTROL MODULE) DISCONNECTED

    • Ignition OFF.

    • Disconnect PCM C175B.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C175B-42
      GFD407892Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  GO to  E2
    No  GO to  E4

  2. E2 CHECK THE CRANK DETECT CIRCUIT FOR A SHORT TO VOLTAGE WITH THE IGNITION SWITCH DISCONNECTED

    • Ignition OFF.

    • Disconnect Ignition switch C250.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C175B-42
      GFD407892Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  GO to  E3
    No  Install a new ignition switch. REFER to: Ignition Switch .

  3. E3 CHECK THE CRANK DETECT CIRCUIT FOR A SHORT TO VOLTAGE WITH THE BCM (BODY CONTROL MODULE) DISCONNECTED

    • Ignition OFF.

    • Disconnect BCM C2280B.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C175B-42
      GFD407892Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit.
    No  INSTALL a new BCM. REFER to: Body Control Module (BCM) .

  4. E4 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all PCM connectors.

    • Repair:

      • corrosion (install new connectors or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary

    • Reconnect the PCM connectors. Make sure they seat and latch correctly.

    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, Refer to PCM Guided Routine .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
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