1646

UnclassifiedGeneral

What This Code Means

MIL (Malfunction Indicator Light) ON

Possible Causes

  • CAN Tx error (120 packets lost within 1 second)
  • Unpowered or improperly grounded CAN devices
  • Improperly terminated CAN2 network
  • CAN2 wire routing exposed to noise sources (such as ignition coils or spark plug coil wires)
  • Short circuits in CAN2 (+) and (-) wires

Suggested Actions

  1. 1Verify that all CAN devices are powered and properly grounded
  2. 2Verify that the CAN2 network is properly terminated
  3. 3Check CAN2 wire routing with respect to noise sources (ignition coils, spark plug coil wires, etc.) and shield if necessary
  4. 4Check CAN2 (+) and (-) wires for short circuits

Related Power Solutions International, Inc. Fault Codes

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Get a diagnosis walkthrough for 1646 on your specific Power Solutions International, Inc. unit — cited to the OEM manual, not a forum guess.

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