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Pinpoint Test

  1. CHECK OPERATION OF THE Integrated Keyhead Transmitter (IKT) OR Intelligent Access (IA) KEY
    1. Press all buttons on the Integrated Keyhead Transmitter (IKT) or Intelligent Access (IA) key and check for correct operation.
    • Is the remote start the only function that is inoperative? 
  2. CHECK THE VEHICLE STARTING
    1. Attempt to start the vehicle.
    • Does the vehicle start? 
  3. CHECK FOR ILLUMINATED ENGINE WARNING LAMPS
    1. With the engine running, check the Instrument Panel Cluster (IPC) for illuminated warning lamps.
    • Are any engine warning lamps illuminated? 
  4. RETRIEVE Body Control Module (BCM) AND Tire Pressure Monitor (TPM) MODULE Diagnostic Trouble Codes (DTCs)
    1. Using a scan tool, perform the Body Control Module (BCM) self-test.
    2. Using a scan tool, perform the Tire Pressure Monitor Module (TPM) self-test.
    • Are any Diagnostic Trouble Codes (DTCs) present? 
  5. CONFIRM THE REMOTE START FUNCTION IS ENABLED
    1. Ignition ON.
    2. Check the message center and confirm the remote start function is enabled. Refer to the Owner's Literature.
    • Is the remote start function enabled? 
    • Yes:  GO to step 6 .
    • No:  ENABLE the remote start function.
  6. CHECK THE LAST RECEIVED Remote Keyless Entry (RKE) TRANSMITTER BUTTON PRESS (LST_RKE_xMTR) OR LAST RECEIVED TRANSMITTER ID BUTTON PRESS (LST_XM_B_PRS) Parameter Identification (PID)
    1. Using a scan tool, view Body Control Module (BCM) or Remote Function Actuator (RFA) module Parameter Identifications (PIDs).
    2. Without Intelligent Access (IA), monitor Body Control Module (BCM) Parameter Identification (PID) LST_RKE_xMTR.
    3. With Intelligent Access (IA), monitor Remote Function Actuator (RFA) module Parameter Identification (PID) LST_XM_B_Prs.
    4. Press the remote start button on the Integrated Keyhead Transmitter (IKT) or Intelligent Access (IA) key and note the Parameter Identification (PID) status.
    • Does the selected Parameter Identification (PID) indicate the remote start button was the last button pressed? 
  7. CHECK THE Powertrain Control Module (PCM) WAKE UP CIRCUIT
    1. Ignition OFF.
    2. Disconnect: Powertrain Control Module (PCM) C175B.
    3. Ignition ON.
    4. Measure:
    Fig 1: Checking Powertrain Control Module Wake Up Circuit
    G07420943Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 11 volts? 
    • Yes:  GO to step 8 .
    • No:  VERIFY Body Control Module (BCM) fuse 18 (10A) is OK. If OK, REPAIR circuit for an open. If not OK, REFER to the SYSTEM WIRING DIAGRAMS to identify the possible causes of the circuit short.
  8. CHECK THE REMOTE START PRECONDITIONS FOR CORRECT OPERATION
    1. NOTE: The Body Control Module (BCM) acknowledges the remote start request and that all preconditions have been met by providing 2 short flashes of the turn indicators and a system complete chirp.

      Make sure that the following preconditions for remote start have been met:

      • Hood is closed with no Diagnostic Trouble Code (DTC) present.
      • Ignition must be OFF.
      • Vehicle must be in PARK.
      • Remote start feature is configured ON.
      • Number of remote start events does not exceed allowed time (2 events in a 1 hour duration).
      • Attempt to carry out a remote start.
      • Is the remote start system still inoperative? 
      • Yes:  GO to step 9 .
      • No:  CARRY OUT the required precondition as necessary.
    2. CHECK FOR CORRECT Powertrain Control Module (PCM) OPERATION
    1. Ignition OFF.
    2. Disconnect and inspect all Powertrain Control Module (PCM) connectors.
    3. Repair:
      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary
    4. Reconnect the Powertrain Control Module (PCM) connectors. Make sure they seat and latch correctly.
    5. Operate the system and determine if the concern is still present.
    • Is the concern still present? 
    • Yes:  CHECK On-Line Automotive Service Information System (OASIS) for any applicable Technical Service Bulletins (TSBs). If a Technical Service Bulletin (TSB) exists for this concern, DISCONTINUE this test and FOLLOW the Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletin (TSB) address this concern, INSTALL a new Powertrain Control Module (PCM). REFER to POWERTRAIN CONTROL MODULE (PCM) .
    • 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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