Mazda Mazda6 Workshop Manual Supplement page 280

STEP
5 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?
6 INSPECT FUEL PRESSURE SENSOR CIRCUIT
FOR OPEN
• Turn engine switch to OFF.
• Inspect continuity between following
harnesses:
— Fuel pressure sensor terminal B and PCM
terminal 61.
— Fuel pressure sensor terminal A and PCM
terminal 91.
• Is there continuity?
7 VERIFY TROUBLESHOOTING OF DTC P0193
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from PCM memory using WDS or
equivalent.
• Start engine.
• Is same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
(See F2–86 AFTER REPAIR
• Is there any DTC present?
End Of Sie
F2–128
ON-BOARD DIAGNOSTIC
INSPECTION
PROCEDURE)
Yes Repair or replace suspected terminal, go to Step 7.
No Go to next step.
Yes Go to next step.
No Repair or replace harness for open, 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