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2003 BMW M5
4.9L V8 S62•RWD•MANUAL•gas•S62B50
1 active safety recall on this vehicle — view recalls
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Repairs0Labor493Torque2380Fluid8DTC2036Battery1Maintenance0Recalls1
P0804low severityPowertrain

1-4 Upshift (Skip Shift) Lamp Control Circuit

on 2003 BMW M5 4.9L V8 S62 · RWD

What this code means

A fault has been detected in the 1-4 upshift (skip shift) lamp control circuit on the instrument cluster. The warning lamp may not illuminate correctly to indicate skip shift operation.

Symptoms

  • Skip shift lamp inoperative or stays on
  • Check engine light on
  • No shift indication to driver

Common causes

  • Burned out skip shift indicator bulb
  • Open or short in lamp circuit wiring
  • Faulty instrument cluster
  • Faulty PCM output driver

Diagnostic steps

  1. Scan for stored codes
  2. Inspect lamp circuit wiring and connectors
  3. Test indicator bulb or LED operation
  4. Verify PCM command and cluster function
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