LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2011 >> Explorer Base, AWD, 6F50 >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Module Communications Network >> Diagnostic Routine(S) >> Diagnostic Routine I >> Pinpoint Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Pinpoint Test

  1. CHECK POWER ON BOTH SIDES OF THE Body Control Module (BCM) POWER FUSE
    1. Ignition ON.
    2. Measure:
      Fig 1: Measuring Power On Both Sides Of Body Control Module (BCM) Power Fuse Connector Terminal
      G07428943Courtesy of FORD MOTOR CO.
      • Is the voltage greater than 11 volts on both sides of the fuse? 
      1. Yes:  GO to 2  on page 2.
      2. No:  VERIFY the fuse 18 (10A) is OK. If OK, GO to 12  on page 11. If not OK, REFER to the SYSTEM WIRING DIAGRAMS to identify the possible causes of the circuit short.
  2. CHECK THE Body Control Module (BCM) GROUND CIRCUIT FOR AN OPEN
    1. Disconnect: Body Control Module (BCM) C2280D.
    2. Measure:
      Fig 2: Measuring Body Control Module (BCM) Ground Connector Terminal
      G07428944Courtesy of FORD MOTOR CO.
      • Is the resistance less than 3 ohms? 
      1. Yes:  GO to 3  on page 3.
      2. No:  REPAIR the circuit.
  3. CHECK THE High Speed Controller Area Network (HS-CAN) TERMINATION RESISTANCE
    1. Ignition OFF.
    2. Disconnect: Negative Battery Cable.
    3. Disconnect the scan tool cable from the Data Link Connector (DLC).
    4. Measure:
      Fig 3: Measuring High Speed Controller Area Network (HS-CAN) Connector Terminals
      G07428945Courtesy of FORD MOTOR CO.
      • Is the resistance between 54 and 66 ohms? 
      1. Yes:  GO to 4  on page 4.
      2. No:  GO to 9  on page 8.
  4. CHECK THE Medium Speed Controller Area Network (MS-CAN) TERMINATION RESISTANCE
    1. Measure:
      Fig 4: Measuring Medium Speed Controller Area Network (MS-CAN) Connector Terminals
      G07428946Courtesy of FORD MOTOR CO.
      • Is the resistance between 54 and 66 ohms? 
      1. Yes:  GO to 12  on page 11.
      2. No:  GO to 5  on page 5.
  5. CHECK THE Medium Speed Controller Area Network (MS-CAN) TERMINATION RESISTANCE WITH THE Heating, Ventilation, and Air Conditioning (HVAC) MODULE DISCONNECTED
    1. Disconnect: Heating, Ventilation, and Air Conditioning (HVAC) module C228A.
    2. Measure:
      Fig 5: Checking Medium Speed Controller Area Network (MS-CAN) Termination Resistance
      G07428947Courtesy of FORD MOTOR CO.
      • Is the resistance between 108 and 132 ohms? 
      1. Yes:  REFER to DIAGNOSTIC ROUTINE J .
      2. No:  GO to 6  on page 5.
  6. CHECK THE Medium Speed Controller Area Network (MS-CAN) CIRCUITS BETWEEN THE Body Control Module (BCM) AND THE Data Link Connector (DLC) FOR AN OPEN
    1. Disconnect: Body Control Module (BCM) C2280B.
    2. Measure:
      Fig 6: Measuring Medium Speed Controller Area Network (MS-CAN) Connector Terminals
      G07428948Courtesy of FORD MOTOR CO.
      • Are the resistances less than 3 ohms? 
      1. Yes:  GO to 7  on page 6.
      2. No:  REPAIR the circuit in question in question.
  7. CHECK THE Medium Speed Controller Area Network (MS-CAN) CIRCUITS FOR A SHORT TO POWER
    1. Connect: Body Control Module (BCM) C2280B.
    2. Ignition ON.
    3. Measure:
      Fig 7: Measuring Medium Speed Controller Area Network (MS-CAN) Connector Terminal
      G07428949Courtesy of FORD MOTOR CO.
      • Is the voltage greater than 3 volts on either circuit? 
      1. Yes:  GO to 8  on page 7.
      2. No:  REPAIR the circuit in question in question.
  8. CHECK THE Medium Speed Controller Area Network (MS-CAN) CIRCUITS FOR A SHORT TO GROUND
    1. Ignition OFF.
    2. Disconnect: Negative Battery Cable.
    3. Measure:
      Fig 8: Measuring Medium Speed Controller Area Network (MS-CAN) Connector Terminal
      G07428950Courtesy of FORD MOTOR CO.
      • Are the resistances greater than 10,000 ohms? 
      1. Yes:  GO to 9  on page 8.
      2. No:  REPAIR the circuit in question in question.
  9. CHECK THE High Speed Controller Area Network (HS-CAN) CIRCUITS BETWEEN THE Body Control Module (BCM) AND THE Data Link Connector (DLC) FOR AN OPEN
    1. Disconnect: Body Control Module (BCM) C2280F.
    2. Measure:
      Fig 9: Measuring High Speed Controller Area Network (HS-CAN) Connector Terminals
      G07428951Courtesy of FORD MOTOR CO.
      • Are the resistances less than 3 ohms? 
      1. Yes:  GO to 10  on page 9.
      2. No:  REPAIR the circuit in question.
  10. CHECK THE High Speed Controller Area Network (HS-CAN) CIRCUITS FOR A SHORT TO POWER
    1. Connect: Body Control Module (BCM) C2280F.
    2. Ignition ON.
    3. Measure:
      Fig 10: Measuring High Speed Controller Area Network (HS-CAN) Connector Terminals
      G07428952Courtesy of FORD MOTOR CO.
      • Is the voltage greater than 3 volts on either circuit? 
      1. Yes:  REPAIR the circuit in question.
      2. No:  GO to 11  on page 10.
  11. CHECK THE High Speed Controller Area Network (HS-CAN) CIRCUITS FOR A SHORT TO GROUND
    1. Disconnect: Negative Battery Cable.
    2. Measure:
      Fig 11: Measuring High Speed Controller Area Network (HS-CAN) Connector Terminal
      G07428953Courtesy of FORD MOTOR CO.
      • Are the resistances greater than 10,000 ohms? 
      1. Yes:  GO to 12  on page 11.
      2. No:  REPAIR the circuit in question.
  12. CHECK FOR CORRECT Body Control Module (BCM) OPERATION
    1. Ignition OFF.
    2. Disconnect and inspect the Body Control Module (BCM) connector.
    3. Repair:
      • corrosion (replace connector or terminals - clean module pins)
      • damaged or bent pins - replace terminals/pins
      • pushed-out pins - replace pins as necessary
    4. Reconnect the Body Control Module (BCM) connector. Make sure it seats and latches correctly.
    5. Operate the system and verify the concern is still present.
      • Is the concern still present? 
      1. 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 Technical Service Bulletin (TSB) instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new Body Control Module (BCM). REFER to BODY CONTROL MODULE (BCM) - WITH INTELLIGENT ACCESS (IA)  or REFER to BODY CONTROL MODULE (BCM) - WITHOUT INTELLIGENT ACCESS (IA) .
      2. No:  The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector.
scientia non olet · About LEMON Manuals