Mazda RX-8 Workshop Manual page 3280

< Previous Next >
2011 - RX-8 - Body and Accessories
NO. 9 WATER TEMPERATURE GAUGE INDICATION IS DEFECTIVE [INSTRUMENT
CLUSTER]
9 Water temperature gauge indication is defective
POSSIBLE CAUSE
Diagnostic procedure
STEP
1 Start the engine.
Does the water temperature gauge needle move
to medium range gradually and stay there?
2 Does the speedometer, the tachometer, operate
normally?
3 Start the instrument cluster input/output check
mode.
Inspect the water temperature gauge using the
check code 25.
Is the water temperature gauge normal?
PCM malfunction
Instrument cluster malfunction
Short circuit in wiring harness between CAN-L, CAN-H and GND
Open circuit in CAN wiring harness (CAN-L, CAN-H)
CAN wiring harness (CAN-L, CAN-H) short each other
Connector or pin malfunction
INSPECTION ACTION
YesTroubleshooting completed.
No Go to the next step.
YesGo to the next step.
No Go to Step 5.
YesInspect the PCM or connectors.
No Replace the instrument cluster.