Mazda CX-9 Grand Touring 2007 Manual page 781

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
harness-side).
APP sensor terminal F and
PCM terminal 1BA.
APP sensor terminal D and
PCM terminal 1Y.
APP sensor terminal G and
PCM terminal 1AD.
APP sensor terminal C and
PCM terminal 1AH.
APP sensor terminal H and
PCM terminal 1AG.
Are there continuity?
7 INSPECT APP SENSOR NO.2
SIGNAL CIRCUIT FOR SHORT TO
POWER SUPPLY
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between the
following terminals (wiring
harness-side).
APP sensor terminal F and
body ground.
APP sensor terminal D and
body ground.
APP sensor terminal G and
body ground.
APP sensor terminal C and
body ground.
APP sensor terminal H and
body ground.
Are there voltage B+ ?
8 VERIFY TROUBLESHOOTING OF
DTC P2128 HAS BEEN
COMPLETED
Verify that all disconnected
connectors reconnected.
Clear the DTC from the PCM
memory using the M-MDS.
Start the engine.
Is the same DTC present?
2007 Mazda CX-9 Grand Touring
No
Yes
No
Yes
No
Repair or replace suspected part, then go to
Step 8.
Repair or replace suspected part, then go to
Step 8.
Go to the next step.
Replace the PCM, then go to the next step.
(see PCM
REMOVAL/INSTALLATION [MZI-
3.5] .)
Go to the next step.