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3 Flashes=CAPACITOR CHARGE

Checked at start-up. Alarm is indicated Internal power block failure. Check all
if capacitors are not charged within fuses and wiring. Including the VMN
500 ms after key switch is closed. and battery positive termination.

Or 3 flashes= VMN NOT OK

VMN checked continuously w/contactor Shorted motor windings or incorrect
closed during operation. VMN monitors wiring of AB or AZ connections.
the drive motor negative lead. Possible defect in power unit. Check
line contactor, battery positive
termination and motor windings.

Or 3 flashes=VFIELD NOT OK
Test done while key is on w/contactor Open winding on motor, incorrect wiring.
open. Mainly used to check motor Traction controller failure. Check motor
windings. windings, control cables and controller.
  • Posted 15 Aug 2009 12:59
  • By Truck_Tech
  • joined 30 Mar'07 - 152 messages
  • United States

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