Mazda Mazda6 Workshop Manual Supplement page 278

STEP
5 INSPECT FUEL PRESSURE SENSOR SIGNAL
CIRCUIT FOR SHORT TO GND
• Turn engine switch to OFF.
• Inspect continuity between fuel pressure
sensor terminal B and body GND.
• Is there continuity?
6 INSPECT FUEL PRESSURE SENSOR CIRCUIT
FOR SHORT WITH EACH OTHER
• Turn engine switch to OFF.
• Inspect continuity between fuel pressure
sensor terminals B and A.
• Is there continuity?
7 INSPECT FUEL TEMPERATURE SENSOR
• Inspect fuel temperature sensor.
(See F2–79 FUEL PRESSURE SENSOR
INSPECTION)
• Is there any malfunction?
8 INSPECT POOR CONNECTION OF PCM
CONNECTOR
• Turn engine switch to OFF.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
9 VERIFY TROUBLESHOOTING OF DTC P0192
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from PCM memory using WDS or
equivalent.
• Start engine.
• Is same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
(See F2–86 AFTER REPAIR
• Is there any DTC present?
End Of Sie
F2–126
ON-BOARD DIAGNOSTIC
INSPECTION
PROCEDURE)
Yes Repair or replace harness for short to GND, go to Step 9.
No Go to next step.
Yes Repair or replace harness for short with each other, go to
Step 9.
No Go to next step.
Yes Repair supply pump, go to Step 9.
(See F2–54 SUPPLY PUMP
No Go to next step.
Yes Repair or replace suspected terminal, go to next step.
No Go to next step.
Yes Replace PCM, go to next step.
(See F2–64 PCM REMOVAL/INSTALLATION)
No Go to next step.
Yes Go to applicable DTC inspection.
(See F2–87 DTC TABLE)
No Troubleshooting completed.
ACTION
INSPECTION)