Mazda 6 2002 Workshop Manual page 168

STEP
4 CLASSIFY MALFUNCTION AT POWER
SUPPLY CIRCUIT OR CONTROL CIRCUIT
• Turn ignition key to ON (Engine OFF).
• Measure voltage between OCV terminal B
(harness-side) and body GND.
• Is voltage B+?
5 INSPECT CONTROL CIRCUIT FOR SHORT TO
POWER
• Turn ignition key to ON (Engine OFF).
• Measure voltage between OCV terminal A
(harness-side) and body GND.
• Is voltage B+?
6 INSPECT CONTROL CIRCUIT FOR SHORT TO
GND
• Turn ignition key to OFF.
• Inspect for continuity between OCV terminal A
(harness-side) and body GND.
• Is there continuity?
7 INSPECT PCM CONNECTOR FOR POOR
CONNECTION
• Turn ignition key to OFF.
• Disconnect PCM connector.
• Inspect for poor connection at terminal 4M
(damaged, pulled-out terminals, corrosion,
etc.).
• Are there any malfunctions?
8 INSPECT CONTROL CIRCUIT FOR OPEN
CIRCUIT
• Turn ignition key to OFF.
• Inspect for continuity between OCV (oil control
valve) terminal A (harness-side) and PCM
terminal 4M (harness-side).
• Is there continuity?
9 VERIFY TROUBLESHOOTING OF DTC P0010
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from PCM memory using WDS or
equivalent.
• Perform KOEO/KOER self-test.
(See F–66 KOEO/KOER
• Is same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See F–66 AFTER REPAIR
• Is there any DTC present?
End Of Sie
ON-BOARD DIAGNOSTIC
INSPECTION
SELF-TEST.)
PROCEDURE.)
Yes Malfunction at control circuit.
Go to net step.
No Malfunction at power supply circuit.
Repair or replace harness for open circuit, then go to Step
9.
Yes Repair or replace harness for short to power, then go to
Step 9.
No Go to net step.
Yes Repair or replace harness for short to GND, then go to Step
9.
No Go to net step.
Yes Repair terminal, then go to Step 9.
No Go to net step.
Yes Go to net step.
No Repair or replace harness for open, then go to net step.
Yes Replace PCM, then go to net step.
(See F–43 PCM REMOVAL/INSTALLATION.)
No Go to net step.
Yes Go to applicable DTC troubleshooting.
(See F–67 DTC TABLE.)
No Troubleshooting completed.
ACTION
F–71
F