Monitor Scantool Data
Scantool Test Condition
1.

IG Key : ON

2.

Actual value for evaluation

Engine no start or Engine idling

3.

Check items with the scantool

① Acuation test for the fuel pump driving

② Fuel pressure current data with the fuel pump relay while cranking or idling

4.

Specification

1)

Fuel pressure > 3.5 bar

☞ CURRENT DATA AND ACTUATION TEST

Battery voltage is applied to the electrical fuel pump for approx. 3 seconds when the ignition switch is turned on and fuel delivery noise can be heard. However, the electrical fuel pump runs continuosly independent of engine speed. For checking the wire and the fuel pump relay with fuse to the fuel pump, the START key should be pressed in the scan tool actuation test mode. And then make sure that the relay "click" noise could be heard with the change of the fuel pump pressure. Also, the fuel pressure should be increased above 3.5 bar when turning the ignition switch ON.

5.

IS THE FUEL PRESSURE CURENT DATA DISPLAYED PROPERLY OR ACTUATION TEST OK ?

YES

a.

Fault is intermittent caused by poor contact in the sensor’s and/or ECM’s connector or was repaired and ECM memory was not cleared.

b.

Check for intermittent fault by observing the data parameter for a sudden change while wiggling the wiring and tapping lightly on the suspect component.

caution

Be careful not to damage wires or components during the test.

c.

Repair as necessary and go to " Verification of Vehicle Repair " procedure

NO

a.

Go to " W/Harness Inspection " procedure.

Яндекс.Метрика