Mazda CX-9 Grand Touring 2007 Manual page 617

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
11 VERIFY AFTER REPAIR
PROCEDURE
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE [MZI-3.5].)
Are any DTCs present?
DTC P0579 [MZI-3.5]
DTC P0579 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
DTC P0579
DETECTION
CONDITION
POSSIBLE CAUSE
2007 Mazda CX-9 Grand Touring
Cruise control multi-function input circuit range/performance
P0579 may set when the cruise control switch circuits are open, shorted to voltage
ground.
Connector or terminal malfunction
Open circuit between cruise control switch terminal B and PCM terminal 1AT
Open circuit between cruise control switch terminal C and PCM terminal 1 AP
Short to power supply between cruise control switch terminal B and PCM termina
1AT
Short to power supply between cruise control switch terminal C and PCM termina
1AP
Short to ground circuit between cruise control switch terminal B and PCM termina
1AT
Short to ground circuit between cruise control switch terminal C and PCM termina
1AP
Cruise control switch malfunction
PCM malfunction
Yes Go to the applicable DTC inspection.
(See DTC TABLE [MZI-3.5].)
No Troubleshooting completed.