Mazda CX-9 Grand Touring 2009 Manual page 997

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
INSPECT FUEL INJECTOR NO.6 CONNECTOR
FOR POOR CONNECTION
Turn the ignition switch off.
3
Disconnect the fuel injector No.6 connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Are there malfunction?
INSPECT PCM CONNECTOR FOR POOR
CONNECTION
Turn the ignition switch off.
4
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Is there malfunction?
INSPECT FUEL INJECTOR NO.6 POWER SUPPLY
CIRCUIT FOR OPEN CIRCUIT
Turn the ignition switch to the ON position (Engine
5
off).
Measure the voltage between fuel injector No.6
connector terminal B and body ground.
Is the voltage B+?
INSPECT FUEL INJECTOR NO.6 SIGNAL
CIRCUIT FOR OPEN CIRCUIT
Inspect continuity between fuel injector No.6
6
terminal A (wiring harness-side) and PCM terminal
2BD (wiring harness-side).
Is there continuity?
INSPECT FUEL INJECTOR NO.6
Inspect the fuel injector No.6. (See FUEL
7
INJECTOR INSPECTION [MZI-3.7] .)
Is there any malfunction?
VERIFY TROUBLESHOOTING OF DTC P0206
HAS BEEN COMPLETED
Verify that all disconnected connectors reconnected.
8
Clear DTC from memory using M-MDS.
Start the engine.
Perform the "KOEO/KOER self-test" (See
2008 Mazda CX-9 Grand Touring
Repair or replace suspected part,
Yes
then go to Step 8.
No Go to the next step.
Repair or replace suspected part,
Yes
then go to Step 8.
No Go to the next step.
Yes Go to the next step.
Repair or replace suspected part,
No
then go to Step 8.
Yes Go to the next step.
Repair or replace suspected part,
No
then go to Step 8.
Replace the fuel injector No.6, then
Yes
go to the next step.
No Go to the next step.
Replace the PCM, then go to the
Yes
next step.