Mazda CX-9 Grand Touring 2009 Manual page 925

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Are there voltage B+?
INSPECT MAF SENSOR SIGNAL
CIRCUIT FOR SHORT TO GROUND
Turn the ignition switch off.
Disconnect the MAF/IAT sensor and
PCM connector.
Inspect for continuity between the
7
following circuits:
MAF sensor terminal C (wiring
harness-side) and body ground
MAF sensor terminal D (wiring
harness-side) and body ground
Are there continuity?
INSPECT PCM CONNECTOR FOR
POOR CONNECTION
Turn the ignition switch off.
Disconnect the MAF/IAT sensor
8
connector.
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
Are there any malfunction?
INSPECT MAF SENSOR CIRCUIT FOR
OPEN CIRCUIT
Turn the ignition switch off.
Disconnect the PCM connector.
Disconnect the MAF/IAT sensor
connector.
9
Inspect for continuity between the
following terminals:
MAF sensor terminal C and
PCM terminal 1AJ
MAF sensor terminal D and
PCM terminal 1AN
Are there continuity?
VERIFY TROUBLESHOOTING OF
DTC P0104 HAS BEEN COMPLETED
Verify that all disconnected connectors
reconnected.
2008 Mazda CX-9 Grand Touring
Repair or replace the malfunctioning part, then
Yes
go to Step 10.
No
Repair or replace the malfunctioning part, then
Yes
go to Step 10.
No
Yes Go to the next step.
Repair or replace suspected part, then go to the
No
Yes
Replace the PCM, then go to next step. (See
PCM REMOVAL/INSTALLATION [MZI-
Go to next step.
Go to next step.
next step.