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Home >> Jeep >> 2004 >> Wrangler X, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Powertrain Diagnostic Procedures >> DRIVEABILITY - Gas >> DTC P1687: No Cluster Bus Message >> Possible Causes
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Possible Causes

  1. NO CLUSTER BUS MESSAGE
  2. COMMUNICATE WITH CLUSTER
  3. INSTRUMENT CLUSTER OPERATION
  4. PCM
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