Power Solutions International, Inc.

686

UnclassifiedGeneral

What This Code Means

DTC 686 is active

Possible Causes

  • •Faulty Relay
  • •Faulty harness (open - circuit)
  • •Faulty ECM

Suggested Actions

  1. 1Perform On-Board (OBD) System Check
  2. 2Verify DTC 686 is active with Key ON, Engine Off and System Mode set to 'Stopped'
  3. 3Remove Relay from fuse block/relay module
  4. 4Using a DMM, measure the voltage potential from the relay output to ground
  5. 5Using a DMM, measure the resistance from the relay output to ground with Key Off and harness disconnected from ECM

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