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OPERATION TEST 1. Follow "BEFORE SERVICE PRECAUTION" before performing any work operations to prevent fuel from spilling from the fuel system. (See BEFORE SERVICE PRECAUTION [MZI-3.7].) 2. Remove the fuel-filler cap. (See FUEL TANK REMOVAL/INSTALLATION [MZI-3.7].) 3. Start the fuel pump using the following procedure: Using M-MDS 1. Connect the M-MDS to the DLC-2. 2. Turn the ignition switch to the ON position. Fig. 32: Connecting M-MDS To DLC-2 3. Using the simulation function FP, verify that operation sound is heard from the fuel pump when FP is turned from OFF to ON. If the operation sound cannot be verified, measure the voltage at fuel pump wiring harness-side If as specified, inspect the following: Fuel pump continuity If not within the specification, inspect the following: Fuel pump relay Wiring harnesses and connectors between battery-fuel pump relay-fuel pump is turned to the ON position. NOTE: To improve start ability, the fuel pump control operates the fuel pump unit
2008 Mazda CX-9 Grand Touring 2008 ENGINE Fuel System (MZI-3.7) - Mazda CX-9
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