Pinpoint Test P: The FDIM Does Not Display DVD Video Played From The ACM - Vehicles With Navigation

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 correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

P1 CHECK THE FDIM VIDEO FEED CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: ACM C240b.
- Disconnect: FDIM C2410.
- Ignition ON.
- Measure the voltage between the FDIM C2410-6, circuit VMN20 (BN/VT), harness side and ground; and between the FDIM C2410-12, circuit RMN20 (WH/GN), harness side and ground.
  
  Fig 1: Measuring Voltage Between FDIM C2410-6, Circuit VMN20 (BN/VT), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is any voltage present?
- Yes : REPAIR the circuit in question. TEST the system for normal operation.
- No : GO to P2.
P2 CHECK THE FDIM VIDEO FEED CIRCUITS FOR AN OPEN OR SHORT TO GROUND
- Ignition OFF.
- Measure the resistance between the FDIM C2410-6, circuit VMN20 (BN/VT), harness side and the ACM C240b-3, circuit VMN20 (BN/VT), harness side; and between the FDIM C2410-6, circuit VMN20 (BN/VT), harness side and ground.
  
  Fig 2: Measuring Resistance Between FDIM C2410-6 And ACM C240b-3
  Courtesy of FORD MOTOR CO.
- Measure the resistance between the FDIM C2410-12, circuit RMN20 (WH/GN), harness side and the ACM C240b-8, circuit RMN20 (WH/GN), harness side; and between the FDIM C2410-12, circuit RMN20 (WH/GN), harness side and ground.
  
  Fig 3: Measuring Resistance Between FDIM C2410-12 And ACM C240b-8
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms between the FDIM and the ACM, and greater than 10,000 ohms between the FDIM and ground?
- Yes : REPAIR the circuit in question. TEST the system for normal operation.
- No : GO to P3.
P3 ISOLATE THE FDIM
- Connect: ACM C240b.
- Install a new FDIM. REFER to FRONT DISPLAY INTERFACE MODULE (FDIM) - FUSION, MILAN or FRONT DISPLAY INTERFACE MODULE (FDIM) - MKZ in this service information.
- Ignition ON.
- Operate the audio system and observe the FDIM screen.
- Does the system operate correctly?
- Yes : The cause of the concern was an inoperative FDIM.
  The system is now operating correctly.
- No : GO to P4.
P4 CHECK FOR CORRECT ACM OPERATION
- Ignition OFF.
- Disconnect all the ACM connectors.
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect all the ACM connectors and make sure they seat correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
- Yes : INSTALL a new ACM. REFER to AUDIO CONTROL MODULE (ACM) - FUSION, MILAN or AUDIO CONTROL MODULE (ACM) - MKZ in this service information. TEST the system for normal operation.
- No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.