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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1528 (Information Center - Instrumentation, Message Center And Warning Chimes) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test BZ: DTC U300A:62 Or U300A:64 >> Pinpoint Test BZ: DTC U300A:62 Or U300A:64

Pinpoint Test BZ: DTC U300A:62 Or U300A:64

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.
  1. BZ1 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST 
    • Check for recorded DTCs from the IPC  self-test.
    • Is DTC U300A:62 recorded? 
    • Yes  : GO to BZ2.
    • No  : GO to  BZ3.
  2. BZ2 CHECK THE IPC VOLTAGE SUPPLY 
    • Ignition OFF.
    • Disconnect: IPC  C220.
    • Measure the voltage between the IPC  C220-20, circuit CBP29 (WH/VT), harness side and the IPC  C220-5, circuit GD116 (BK/VT), harness side.
      Fig 1: Measuring Voltage Between IPC C220-20, Circuit CBP29 (WH/VT), Harness Side And IPC C220-5, Circuit GD116 (BK/VT)
      G06262895Courtesy of FORD MOTOR CO.
    • Ignition ON.
    • Measure the voltage between the IPC  C220-20, circuit CBP29 (WH/VT), harness side and the IPC  C220-5, circuit GD116 (BK/VT), harness side.
      Fig 2: Measuring Voltage Between IPC C220-20, Circuit CBP29 (WH/VT), Harness Side And IPC C220-5, Circuit GD116 (BK/VT)
      G06262895Courtesy of FORD MOTOR CO.
    • Place the ignition in the START position.
    • Measure the voltage between the IPC  C220-20, circuit CBP29 (WH/VT), harness side and the IPC  C220-5, circuit GD116 (BK/VT), harness side.
      Fig 3: Measuring Voltage Between IPC C220-20, Circuit CBP29 (WH/VT), Harness Side And IPC C220-5, Circuit GD116 (BK/VT)
      G06262895Courtesy of FORD MOTOR CO.
    • Is the voltage 0 volts in the OFF position and greater than 10 volts in the RUN and START positions? 
    • Yes  : GO to BZ3.
    • No  : VERIFY the SJB fuse 29 (5A) is OK. If OK, REPAIR the circuit for an open. TEST the system for normal operation. If not OK, REFER to the SYSTEM WIRING DIAGRAMS article to identify the possible causes of the circuit short.
  3. BZ3 CHECK THE SJB INPUT PIDs FROM THE IGNITION SWITCH 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: SJB DataLogger.
    • Select the SJB PIDs ignition ACC (IGN_A_ECU), ignition OFF (IGN_O_ECU), ignition RUN (IGN_R_ECU), and ignition START (IGN_S_ECU). Monitor the ignition PIDs while switching the ignition from ACC, OFF, RUN and START.
    • Do the SJB PIDs match the ignition mode? 
  4. BZ4 CHECK THE IPC DTCs 
    • Enter the following diagnostic mode on the scan tool: IPC  Self-Test.
    • Repeat the IPC  self-test. Clear the DTCs.
    • Is DTC U300A:62 or DTC U300A:64 still present? 
    • Yes  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES -- FUSION, MILAN & MKZ article. CLEAR the DTCs. REPEAT the self-test.

      If the DTC is still present, INSTALL a new IPC  . REFER to INSTRUMENT PANEL CLUSTER (IPC)  in this service information. TEST the system for normal operation.

    • No  : The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.
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