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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector C1 at the VCIM.
  2. Ignition ON, test for 12.3-12.9 volts between the supply voltage circuit terminal 14 and the low reference circuit terminal 13.
    • If voltage is not within the specified range, replace the BUB.
  3. If all circuits test normal, replace the VCIM.
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