Fault Code Guides

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  Jun 18, 2026 · Sparkace LAUNCH

  Code U0155: Lost Communication With Instrument Cluster – Diagnosing Dashboard Blackouts and Gauge Failures

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  Jun 18, 2026 · Sparkace LAUNCH

  Code U0140: Lost Communication With BCM – Diagnosing Central Body Network Failures and Electrical Blackouts

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  Jun 18, 2026 · Sparkace LAUNCH

  Code U0121: Lost Communication With ABS Module – Diagnosing Electronic Braking Drops and Network Blackouts

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  Jun 18, 2026 · Sparkace LAUNCH

  Code U0102: Lost Communication With Transfer Case Module – Diagnosing 4WD Faults and Network Outages

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  Jun 18, 2026 · Sparkace LAUNCH

  Code U0101: Lost Communication With TCM – Diagnosing Transmission Controller Blackouts and Data Link Drops

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  Jun 18, 2026 · Sparkace LAUNCH

  Code U0100: Lost Communication With ECM/PCM – Diagnosing Engine Computer Blackouts and Powertrain Drops

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