Mazda CX-9 Grand Touring 2009 Manual page 809

2008 ENGINE PERFORMANCE Emission System (MZI-3.7) - Mazda CX-9
Fig. 26: Identifying PCM Wiring Harness Side Connector
Courtesy of MAZDA MOTORS CORP.
Open circuit
If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
PCV valve heater fitting terminal A and main relay No.1 terminal D
PCV valve heater fitting terminal B and PCM terminal 2AU
Short circuit
If there is continuity, there is a short circuit. Repair or replace the wiring harness.
PCV valve heater fitting terminal A and power supply
PCV valve heater fitting terminal A and body ground
PCV valve heater fitting terminal B and power supply
PCV valve heater fitting terminal B and body ground
POSITIVE CRANKCASE VENTILATION (PCV) VALVE HEATER FITTING
REMOVAL/INSTALLATION [MZI-3.7]
1. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7] .)
2. Remove in the order indicated in the table.
2008 Mazda CX-9 Grand Touring