Mazda RX-8 Manual page 1000

Diagnostic procedure
STEP INSPECTION
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
Has FREEZE FRAME DATA been
•
recorded?
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
Verify related Service Bulletins and/or
•
2
on-line repair information availability.
Is any related repair information
•
available?
INSPECT EVAP SYSTEM LEAK
DETECTION PUMP CONNECTOR FOR
POOR CONNECTION
Turn the ignition switch off.
•
3
Disconnect the EVAP system leak
•
detection pump connector.
Inspect for poor connection (such as
•
damaged/pulled-out pins, corrosion).
Is there any malfunction?
•
INSPECT EVAP SYSTEM LEAK
DETECTION PUMP CONTROL CIRCUIT
FOR SHORT TO POWER SUPPLY
Turn the ignition switch to the ON
•
4
position (Engine off).
Measure the voltage between EVAP
•
system leak detection pump terminal D
(wiring harness-side) and body GND.
Is the voltage B+ ?
•
INSPECT EVAP SYSTEM LEAK
DETECTION PUMP
5
Inspect the EVAP system leak detection
•
pump.
ACTION
Yes Go to the next step.
Record the FREEZE FRAME DATA on the
No
repair order, then go to the next step.
Perform repair or diagnosis according to the
available repair information.
Yes
If the vehicle is not repaired, go to the
•
next step.
No Go to the next step.
Repair or replace the terminal, then go to Step
Yes
7.
No Go to the next step.
Repair or replace the wiring harness for a
Yes possible short to power supply, then go to Step
7.
No Go to the next step.
Replace the EVAP system leak detection pump,
then go to Step 7.
Yes
(See EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
REMOVAL/INSTALLATION .)
(w) Engine Diagnostics & Control
Page 437