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Home >> Mazda >> 2002 >> B4000 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 439 (Instrumentation/Driver Info) >> Instrument Cluster Input/Output Check Mode >> Inspection of Check Codes >> Check code 08 >> Diagnostic procedure
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Diagnostic procedure

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
CHECK CODE 08 DIAGNOSTIC PROCEDURE

STEP INSPECTION INDICATION ACTION
1 Turn headlight switch to TNS position. (TNS relay on.) on Go to next step.
off Measure voltage at instrument cluster terminal 2K.
Is voltage B+  ?
  • If as specified, replace instrument cluster.
  • If not as specified, inspect following parts.
    • TNS relay
    • Wiring harness (Battery-TNS relay-instrument cluster)
2 Turn headlight switch off. (TNS relay off.) on Measure voltage at instrument cluster terminal 2K.
Is voltage 0 V  ?
  • If as specified, replace instrument cluster.
  • If not as specified, inspect following parts.
    • TNS relay
    • Wiring harness (Battery-TNS relay-instrument cluster)
off Input signal to instrument cluster is okay.
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