Mazda RX8 - Page 58

NOTE:
• The following test is for an
engine running at rough
idle with the A/C on. If
other symptoms exist, go to
the next step.
Connect the pressure gauge to the
A/C low and high pressure side
lines.
Start the engine and run it at idle.
Turn the A/C switch on.
Measure the low side and high side
pressures.
Are the pressures within the
specifications?
(See REFRIGERANT PRESSURE
CHECK .)
No
If the A/C is always on, go to the symptom
troubleshooting "No.24 A/C is always on or
A/C compressor runs continuously".
(See NO.24 A/C IS ALWAYS ON OR A/C
COMPRESSOR RUNS CONTINUOUSLY
.)
For other symptoms, inspect the following:
• Refrigerant charging amount
• Cooling fans operation
Yes
DTC is displayed:
Go to the applicable DTC inspection.
(See DTC TABLE .)
6
NOTE:
• The following test is for an
engine running rough with
the P/S on. If other
symptoms exist, go to the
next step.
Connect the WDS or equivalent to
the DLC-2.
Turn the ignition switch to the ON
position (Engine off).
Retrieve any DTCs for EPS CM.
Are there any DTCs displayed?
No
No DTC is displayed:
Go to the next step.
7 Yes Go to the next step.
(w) RX8-Engine Troubleshooting
Page 58