Mazda CX-9 Grand Touring 2007 Manual page 602

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
8 INSPECT PCM CONNECTOR FOR
POOR CONNECTION
Turn the ignition switch off.
Disconnect PCM connector.
Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).
Is there any malfunction?
9 INSPECT FAN CONTROL
CIRCUIT FOR OPEN CIRCUIT
Inspect continuity between the
following circuits:
Dual fan control module
Fan control module No.1
terminal 1B (wiring
harness-side) and PCM
terminal 1AM (wiring
harness-side).
Fan control module No.2
terminal B (wiring harness-
side) and PCM terminal
1AM (wiring harness-side).
Single fan control module
Fan control module terminal
1B (wiring harness-side)
and PCM terminal 1AM
(wiring harness-side).
Are there continuity?
10 VERIFY TROUBLESHOOTING OF
DTC P0480 HAS BEEN
COMPLETED
Verify that all disconnected
connectors reconnected.
Clear the DTC from the PCM
memory using the M-MDS.
Perform the "KOEO or KOER
self-test".
2007 Mazda CX-9 Grand Touring
Yes
No
Yes
No
Yes
Repair or replace suspected part, then go to
Step 10.
Go to the next step.
Go to the next step.
Repair or replace suspected part, then go to
the next step.
Replace the PCM, then go to the next step.
(see PCM
REMOVAL/INSTALLATION [MZI-
3.5] .)