DTC P0689 [MZI-3.5]
DTC P0689 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
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?
No
Go to the next step.
6
VERIFY AFTER REPAIR
PROCEDURE
z
Perform the "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.
DTC P0689
ECM/PCM power relay sense circuit low
DETECTION
CONDITION
z
This DTC sets when the passive anti theft system (PATS) system indicates the key
ON or START position and the ignition switch position run circuit indicates OFF,
ACC, or LOCK position.
POSSIBLE CAUSE
z
Ignition circuit fuse (MAIN, IG KEY 1, IG KEY 2)
z
Open circuit between battery positive terminal and PCM terminal 1 BD
z
Short to ground circuit between battery positive terminal and PCM terminal 1 BD
z
Ignition switch malfunction
z
PATS system malfunction
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:35 AM
Page 327
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