FUEL PUMP ACTUATlON TEST
Fuel pump operating sound inspection
1.

Check if the operating sound of fuel pump comes out by using the actuation test of "FUEL PUMP RELAY"on the scan tool.

2.

Is the operating sound heard normally?

▶ Go to "Fuel pump is OK" procedure as below.

▶ Go to "Fuel pump is bad" procedure as below.

Fuel pump is OK
3.

If the fuel pump is operated by using "FUEL PUMP" actuation test, Click on "Fuel" item for more details.

4.

If "Fuel" is normal,

▶ Click on "Compression pressure" item for more details.

▶ Click on "Air cleaner" item for more details.

▶ Click on "Catalytic converter" item for more details.

▶ Click on "Injector" item for more details.

▶ Click on "ETC" item for more details.

Fuel pump is bad
5.

Remove "FUEL PUPM RELAY" on "E/R FUSE & RELAY BOX".

6.

Connect jump wire directly to switch terminals to operate "FUEL PUMP" and IG key "ON".

7.

Is the fuel pump operated directly?

▶ Click on "Fuel pump relay circuit" item for more details.

▶ Click on "Fuel pump circuit" item for more details.

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