Mazda 6 2002 - Page 931

WARNING AND INDICATOR SYSTEM
T79
T
Diagnostic procedure
5 Close all doors. (Door switch off.) Measure voltage at instrument cluster terminals 1I and
1J.
Is voltage B+?
• If as specified, replace instrument cluster.
• If not as specified, inspect following parts.
 Door switch
 Wiring harness (Instrument clusterdoor switch)
Input signals to instrument cluster are okay.
DTC 08 TNS relay on/off signal
STEP INSPECTION INDICATION ACTION
1 Turn headlight switch to TNS
position. (TNS relay on.)
Go to next step.
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.)
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 (TNS relayinstrument cluster)
Input signal to instrument cluster is okay.
DTC 12 Operation signal to speedometer
INSPECTION INDICATION SITUATION ACTION
Wait for 2 seconds after selecting DTC 12. Speedometer needle
moves full scale then
returns to 60 km/h or 60
MPH.
Speedometer is okay.
Other than stated above. Replace instrument
cluster.

STEP INSPECTION INDICATION ACTION