DTC P0685 [MZI-3.5]
DTC P0685 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
z
Are any DTCs present?
DTC P0685
ECM/PCM power relay control circuit/open
DETECTION
CONDITION
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This DTC sets when the ignition switch position run circuit indicates the key is in
off, ACC, or LOCK position, and the amount of time the PCM remains powered
through the PCM power relay exceeds a predetermined amount of time.
POSSIBLE CAUSE
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Short to ground circuit between main relay No.1 terminal A and PCM terminal 1 B
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Main relay No.1 malfunction
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PCM 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
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