Mazda RX-8 Workshop Manual page 764

STEP INSPECTION
1 Inspect the following:
Engine coolant level
Coolant leakage
Water and anti–freeze
mixture
Radiator condition
Collapsed or restricted
radiator hoses
Radiator pressure cap
Overflow system
Fan rotational
direction
Cooling air passage to
radiator
Fuses
Are all items normal?
2 Turn the ignition switch to the ON
position (engine off).
Retrieve any DTCs using the M-MDS.
(See ON-BOARD DIAGNOSTIC TEST
[13B-MSP].)
Are there any DTCs displayed?
3 Start the engine and run it at idle
speed.
Turn the A/C switch on and the set
blower fan to any speed.
Does the A/C compressor engage?
RESULTS
Yes Go to the next step.
No Service if necessary.
Repeat Step 1.
Yes Go to the applicable DTC inspection.
(See DTC TABLE
No Go to the next step.
Yes Go to Step 5.
No Inspect the following:
Refrigerant charging amount
Open circuit between A/C relay and
PCM terminal 1I
Seized A/C magnetic clutch
A/C magnetic clutch malfunction
Repair or replace if necessary.
ACTION
[13B-MSP].)