Connector For Poor Connection; Inspect Pcm Connector For Poor Connection; Turn The Ignition Switch Off; Inspect For Poor Connection - Mazda CX-9 Grand Touring 2007 Manual

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Is any related Service Bulletins
available?
3 INSPECT FUEL INJECTOR NO.6
CONNECTOR FOR POOR
CONNECTION

Turn the ignition switch off.

Disconnect the fuel injector No.6
connector.
Inspect for poor connection (such as

damaged/pulled-out pins,

corrosion).
Are there malfunction?
4 INSPECT PCM CONNECTOR FOR
POOR CONNECTION
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such as
damaged/pulled-out pins,
corrosion).
Is there malfunction?
5 INSPECT FUEL INJECTOR NO.6
POWER SUPPLY CIRCUIT FOR
OPEN CIRCUIT
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between fuel
injector No.6 connector terminal B
and body ground.
Is the voltage B+ ?
6 INSPECT FUEL INJECTOR NO.6
SIGNAL CIRCUIT FOR OPEN
CIRCUIT
Inspect continuity between fuel
injector No.6 terminal A (wiring
harness-side) and PCM terminal
2BD (wiring harness-side).
Is there continuity?
7 INSPECT FUEL INJECTOR NO.6
2007 Mazda CX-9 Grand Touring
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Go to the next step.
Repair or replace suspected part, then go
to Step 8.
Go to the next step.
Repair or replace suspected part, then go
to Step 8.
Go to the next step.
Go to the next step.
Repair or replace suspected part, then go
to Step 8.
Go to the next step.
Repair or replace suspected part, then go
to Step 8.
Replace the fuel injector No.6, then go
to the next step.