Mazda RX8 - Page 400

Check code 08
Check code 08 TNS relay ON/OFF signal
STEP INSPECTION CONDITION DISPLAY ACTION
Go to the next step.
1
Turn the headlight switch to the TNS
position.(TNS relay ON)
Verify that the voltage of instrument cluster
terminal 1B is B+ .
• If the voltage is as specified, replace the
instrument cluster.
• If the voltage is not as specified, inspect
the following parts:
 TNS relay
 Wiring harness (BatteryTNS
relayinstrument cluster)
Verify that the voltage of the instrument cluster
terminal 1B is 1.0 V or less .
• If the voltage is as specified, replace the
instrument cluster.
• If the voltage is not as specified, inspect
the following parts:
 TNS relay
 Wiring harness (TNS
relayinstrument cluster)
2
Turn the headlight switch off.(TNS
relay OFF)
Input signal to the instrument cluster is normal.
Check code 12
Check code 12 Speedometer display signal
INSPECTION
CONDITION
DISPLAY ACTION
All segments in the speedometer
illuminate.
The speedometer is normal.
Except above
Select check code 12.

Replace the instrument
cluster.
Check code 13
(w) RX-8 Body
Page 400