Mazda CX-9 Grand Touring 2009 Manual page 1262

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Turn the ignition switch off.
Inspect for continuity between the
following terminals (wiring harness-
side).
APP sensor terminal F and
PCM terminal 1BA.
APP sensor terminal D and
6 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?
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
7
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+?
VERIFY TROUBLESHOOTING OF
DTC P2128 HAS BEEN COMPLETED
8
Verify that all disconnected
connectors reconnected.
Clear the DTC from the PCM
memory using the M-MDS.
2008 Mazda CX-9 Grand Touring
Yes Go to the next step.
Repair or replace suspected part, then go to Step
No
Repair or replace suspected part, then go to Step
Yes
8.
No
Replace the PCM, then go to the next step. (See
Yes PCM REMOVAL/INSTALLATION [MZI-
3.7] .)
8.
Go to the next step.