DTC P1289 [MZI-3.7]
DTC P1289 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
7
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-3.7]
.)
z
Is the PENDING CODE for the DTC
present?
[MZI-3.7]
.)
No
Go to the next step.
8
VERIFY AFTER REPAIR PROCEDURE
z
Perform "AFTER REPAIR
PROCEDURE". (See
AFTER
REPAIR PROCEDURE [MZI-3.7]
.)
z
Are any DTCs present?
Yes
Go to the applicable DTC inspection. (See
DTC TABLE [MZI-3.7]
.)
No
Troubleshooting completed.
DTC P1289
CHT sensor circuit high input
DETECTION
CONDITION
z
Indicates a CHT sensor circuit open.
POSSIBLE CAUSE
z
Open circuit in wiring harness between CHT sensor terminal A and PCM
terminal 2AL
z
Open circuit in wiring harness between CHT sensor terminal B and PCM
terminal 2AN
z
Short to power supply in wiring harness between CHT sensor terminal B and
PCM terminal 2AN
z
CHT sensor malfunction
z
Connector or terminal malfunction
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:41 AM
Page 325
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