Mazda RX-8 Workshop Manual page 310

Diagnostic procedure
STEP
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
1
Verify related Service Bulletins and/or on-line repair
information availability.
Is any related repair information available?
INSPECT COOLING FAN RELAY NO.1 CONNECTOR FOR POOR
2 CONNECTION
Turn the ignition switch off.
Remove the cooling fan relay No.1.
Inspect for poor connection (such as damaged/pulled-
out pins, corrosion).
Is there any malfunction?
INSPECT COOLING FAN RELAY NO.1 POWER SUPPLY CIRCUIT
3 FOR SHORT TO GROUND OR OPEN CIRCUIT
Cooling fan relay No.1 is removed.
Turn the ignition switch to the ON position (engine
off).
Measure the voltage between cooling fan relay No.1
terminal A (wiring harness-side) and body ground.
INSPECTION ACTION
YesPerform repair or diagnosis according to the
available repair information.
If the vehicle is not repaired,
go to the next step.
No Go to the next step.
YesRepair or replace the terminal, then go to Step
9.
No Go to the next step.
YesGo to the next step.
No Inspect the cooling fan relay No.1 related fuse.
If the fuse is melt:
Repair or
replace the