Mazda CX-9 Grand Touring 2009 Manual page 1630

Fig. 33: Identifying Fuel Pump Unit Wiring Harness-Side Connector
Courtesy of MAZDA MOTORS CORP.
Standard
B+ (Ignition switch at ON)
Without using M-MDS
1. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-
3.7] .)
2. Remove the fuel pump relay.
CAUTION:
3. Using a jumper wire, short fuel pump relay terminals C and D in the main fuse block.
4. Connect the negative battery cable and operate the fuel pump.
5. Verify that operation sound is heard from the fuel pump when ignition switch turn to the ON
position.
Fig. 34: Identifying Main Fuse Block (Fuel Pump Relay)
Courtesy of MAZDA MOTORS CORP.
If the operation sound cannot be verified, measure the voltage at fuel pump wiring harness-
2008 Mazda CX-9 Grand Touring
2008 ENGINE Fuel System (MZI-3.7) - Mazda CX-9
Short the specified terminals because shorting the wrong
terminal of the main fuse block may cause malfunctions.