10681907

1.

Electrical systems consist of a lot of harness and connectors, poor connection of terminals can cause various problems and damge of component.

2.

Perform checking procedure as follows.

(1)

Check damage of harness and terminals : Check terminals for contact resistance, corrosion and deformation.

(2)

Check connecting condition of ECM and component connector : Check terminal seperation, damage of locking device and connecting condition between terminal and wiring.

note

Disconnect the pin which requires checking at male connector and insert it to the terminal at female connector for checking connecting condition. ( after checking, reconnect the pin at correct position. )

3.

Is the problem found?

	▶ Repair the trouble causing part and go to "Verification of Vehicle Repair".
	▶ Go to "Power Circuit Inspection".

1.

IG KEY "OFF", ENGINE "OFF".

2.

Disconnect Water sensor connector.

3.

IG KEY "ON".

4.

Measure the voltage between ON/START power terminal of water sensor harness connector and chassis ground.

Specification : 11.0V~12.5V

5.

Is the measured voltage within the specification?

	▶ Go to "Signal Circuit Inspection".
	▶ Repair open of SNSR.2 FUSE in E/R JUNCTION BOX and related circuit and go to "Verification of Vehicle Repair".

1.

Check signal circuit voltage

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect Water sensor connector.

(3)

IG KEY "ON"

(4)

Measure the voltage between signal terminal of water sensor harness connector and chassis ground.

Specification : 0.0V~0.1V

(5)

Is the measured voltage within the specification?

	▶ Go to "2. Water warning lamp operation test" as follows.
	▶ Repair short to battery and go to "Verification of Vehicle Repair".

2.

Water warning lamp operation test

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect Water sensor connector .

(3)

IG KEY "ON".

(4)

Connect ON/START power terminal and signal terminal of water sensor harness connector using jump wire.

Specification : Water warning lamp on cluster turns ON. 12V battery voltage is detected at ECM connector

(5)

Does water warning lamp turn ON? And is 12V battery voltage detected at ECM connector

	▶ Go to "Ground Circuit Inspection".
	▶ Repair open in water warning lamp filament and related circuit and go to "Verification of Vehicle Repair".

1.

IG KEY "OFF", ENGINE "OFF".

2.

Disconnect Water sensor connector

3.

Check continuity between ground terminal of water sensor harness connector and chassis ground.

Specification : Continuity (below 1.0Ω)

4.

Is the measured resistance within the specification?

	▶ Go to "Component Inspection".
	▶ Repair short to ground in signal circuit and go to "Verification of Vehicle Repair".