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Home >> Mazda >> 2007 >> 6 Mazdaspeed >> Repair and Diagnosis >> Electrical >> Horns >> Instrumentation/Driver Info >> Instrument Cluster Input/Output Check Mode >> Inspection of Check Codes >> Check code 04
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Check code 04

CHECK CODE 04 REFERENCE (DOOR SWITCH)

Check code 04 Door switch on/off signal
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CHECK CODE 04 DIAGNOSTIC PROCEDURE

STEP INSPECTION INDICATION ACTION
1 Open driver-side door. (Door switch on).
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 Close driver-side door, then go to next step.
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 Measure voltage at instrument cluster terminal 1 J. Is voltage 0 V? 
  • If as specified, replace instrument cluster.
  • If not as specified, inspect following parts.
    • Door switch
    • Wiring harness (Instrument cluster-BCM-door switch)
2 Close driver-side door. (Door switch off).
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 Measure voltage at instrument cluster terminals 1J. Is voltage B+  ?
  • If as specified, replace instrument cluster.
  • If not as specified, inspect following parts.
    • Door switch
    • Wiring harness (Instrument cluster-BCM-door switch)
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 Input signal to instrument cluster is okay.
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