DTC P1290 [MZI-3.5]
DTC P1290 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
{
CHT sensor terminal B
(wiring harness-side) and
PCM terminal 2AN (wiring
harness-side).
z
Are there continuity?
7
INSPECT CHT SENSOR
z
Inspect the CHT sensor.
(see
CYLINDER HEAD
TEMPERATURE (CHT)
SENSOR INSPECTION [MZI-
3.5].
)
z
Is there any malfunction?
Yes
Replace the CHT sensor, then go to the
next step.
No
Go to the next step.
8
VERIFY TROUBLESHOOTING OF
DTC P1289 HAS BEEN
COMPLETED
z
Verify that all disconnected
connectors reconnected.
z
Clear the DTC from the PCM
memory using the M-MDS.
z
Perform the KOEO or KOER self-
test using the M-MDS.
(See
KOEO/KOER SELF TEST
[MZI-3.5]
.)
z
Is the PENDING CODE for the
DTC present?
Yes
Replace the PCM, then go to the next step.
(see
PCM
REMOVAL/INSTALLATION [MZI-
3.5]
.)
No
Go to the next step.
9
VERIFY AFTER REPAIR
PROCEDURE
z
Perform "AFTER REPAIR
PROCEDURE".
(See
AFTER REPAIR
PROCEDURE [MZI-3.5]
.)
z
Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See
DTC TABLE [MZI-3.5]
.)
No
Troubleshooting completed.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:36 AM
Page 355
© 2005 Mitchell Repair Information Company, LLC.