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Test B: No Communication With Virtual Image Cluster (VIC)

  1. Turn ignition switch to OFF position. Remove and inspect fuses No. 5 (10-amp), No. 26 (10-amp) and No. 28 (10-amp) from central junction box. If fuses are okay, install fuses and go to next step. If any fuse is blown, replace fuse and retest system. If fuse blows again, check for short to ground and repair as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
  2. Disconnect Virtual Image Cluster (VIC) harness connectors C255 and C256. Measure voltage at appropriate terminals at VIC harness connector indicated, with key in specified position. See POWER TO VIC  table. See Figure . If all voltages are greater than 10 volts, go to next step. If any voltage is 10 volts or less, repair open in appropriate circuit. See WIRING DIAGRAMS  .
    POWER TO VIC (1)

    Switch Position VIC Connector/Terminal No. Wire Color
    OFF C256/9 Violet
    RUN C256/20 Light Green/Violet
    RUN/START C255/21 Red/Yellow
    (1) Refer to illustration for terminal identification. See Figure .
  3. Turn ignition switch to OFF position. Measure resistance between ground and appropriate VIC harness connector terminals. See VIC GROUNDS  table. If all resistances are 5 ohms or less, repair module communication concern. See MODULE COMMUNICATIONS NETWORK - CONTINENTAL article. If any resistance is greater than 5 ohms, repair open in appropriate wire. See WIRING DIAGRAMS  .
VIC GROUNDS (1)

VIC Connector/Terminal No. Wire Color
C256/10 Black/Light Blue
C255/26 Black
C255/27 Black/Light Blue
(1) Refer to illustration for terminal identification. See Figure .
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