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Inspection and Verification

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the customer concern.
  2. Visually inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Engine oil level
    • Door adjustment
    • Trunk adjustment
    • Engine coolant level
    • Fuel tank
    • Fuel evaporative system
    • Brake fluid level
    • Accessory drive belt
    • Smart junction box (SJB) fuse(s):
      • 13 (7.5A)
      • 23 (7.5A)
      • 27 (7.5A)
    • Circuitry
    • Instrument cluster
  3. If the cause is not visually evident, correct the cause (if possible) before proceeding to the next step.
  4. If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
    • Check that the program card is correctly installed.
    • Check the connections to the vehicle.
    • Check the ignition switch position.
  5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
  6. Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
  7. If the DTCs retrieved are related to the concern, go to INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) INDEX , SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) INDEX  or POWERTRAIN CONTROL MODULE (PCM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
  8. If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .
INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC Description Source Action
B1202 Fuel Sender Circuit Open Instrument Cluster GO to PINPOINT TEST B .
B1204 Fuel Sender Circuit Short to Ground Instrument Cluster GO to PINPOINT TEST B .
B1205 EIC Switch-1 Assembly Circuit Failure Instrument Cluster Trip/Reset switch failure occurred. VERIFY the trip/reset switch is not binding on the instrument cluster bezel. If the trip/reset switch is binding on the instrument cluster bezel, REPAIR the bezel assembly as necessary. CLEAR the DTCs. REPEAT the self-test.
If the trip/reset switch is not binding on the instrument cluster bezel, CLEAR the DTCs. REPEAT the self-test. If DTC B1205 is still present, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
B1317 Battery Voltage High Instrument Cluster GO to PINPOINT TEST J .
B1318 Battery Voltage Low Instrument Cluster GO to PINPOINT TEST J .
B1342 ECU is Faulted Instrument Cluster INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
B1360 Ignition Run/Ace Circuit Open Instrument Cluster GO to PINPOINT TEST V .
B1868 Lamp Air Bag Warning Indicator Circuit Failure Instrument Cluster GO to PINPOINT TEST Q .
B2141 NVM Configuration Failure Instrument Cluster REFER to MODULE CONFIGURATION .
B2143 NVM Memory Failure Instrument Cluster CLEAR the DTCs. REPEAT the self-test. If DTC B2143 is still present, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
B2207 ECU ROM Checksum Error Instrument Cluster CLEAR the DTCs. REPEAT the self-test. If DTC B2207 is still present, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
B2390 Master/Slave Communication Failure Instrument Cluster CLEAR the DTCs. REPEAT the self-test. If DTC B2390 is still present, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
B2477 Module Configuration Failure Instrument Cluster RECONFIGURE the instrument cluster. REFER to MODULE CONFIGURATION .
B2844 Ignition Fault Instrument Cluster GO to PINPOINT TEST W .
U1900 CAN Communication Bus Fault Instrument Cluster REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to MODULE COMMUNICATIONS NETWORK .
1901 CAN Network #2 Communication Bus Fault-Receive Error Instrument Cluster REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1901 is still present, REFER to MODULE COMMUNICATIONS NETWORK .
U2050 No Application Present Instrument Cluster REFLASH the instrument cluster. If the DTC occurs after a software reflash, REFLASH the instrument cluster again. If the DTC reappears after each attempt to reflash, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER  . TEST the system for normal operation.
U2051 One or More Calibration Files Missing/Corrupt Instrument Cluster REFLASH the instrument cluster. If the DTC occurs after a software reflash, REFLASH the instrument cluster again. If the DTC reappears after each attempt to reflash, INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER  . TEST the system for normal operation.
All Other DTCs - Instrument Cluster REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES .
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC Description Source Action
B2479 Brake Park Switch Circuit Short to Ground SJB GO to PINPOINT TEST X .
C1125 Brake Fluid Level Sensor Input Circuit Failure SJB GO to PINPOINT TEST X .
C1284 Oil Pressure Switch Failure SJB GO to PINPOINT TEST O .
All Other DTCs - SJB REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES .
POWERTRAIN CONTROL MODULE (PCM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC Description Source Action
P0457 Fuel Fill Cap Off PCM GO to PINPOINT TEST H .
All Other DTCs - PCM REFER to the INTRODUCTION - GASOLINE article.
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