Mazda CX-9 Grand Touring 2007 Manual page 316

If not within the specification, inspect the following:
Fig. 35: Identifying Fuel Pump Unit Connector Terminals
Courtesy of MAZDA MOTORS CORP.
Standard
B+ (Ignition switch at ON)
6. Disconnect the jumper wire.
7. Complete the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE [MZI-3.5].)
CONTINUITY INSPECTION
1. Disconnect the negative battery cable. (see BATTERY REMOVAL/INSTALLATION [MZI-3.5] .)
2. To remove the service hole cover, remove the following parts:
1. Second-row seat (see SECOND-ROW SEAT REMOVAL/INSTALLATION .)
2. Edge cover (see LONG SLIDER REMOVAL/INSTALLATION .)
3. Long slider cover (see LONG SLIDER REMOVAL/INSTALLATION .)
4. Rear heat duct No.3 (see REAR HEAT DUCT COMPONENT
REMOVAL/INSTALLATION .)
5. Service hole cover (See FUEL PUMP UNIT REMOVAL/INSTALLATION [MZI-3.5].)
3. Disconnect the fuel pump unit connector.
4. Inspect for continuity between fuel pump unit connector terminals B and D.
If there is no continuity, replace the fuel pump unit. (See FUEL PUMP UNIT
REMOVAL/INSTALLATION [MZI-3.5].)
If as specified carry out the "Circuit Open/Short Inspection".
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Fuel System (MZI-3.5) - CX-9
Fuel pump continuity
Fuel pump relay
Wiring harnesses and connectors between battery-fuel pump relay- fuel pump