Terminal and Connector Inspection
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?

YES

a.

Repair the trouble causing part and go to "Verification of Vehicle Repair".

NO

a.

Go to "Power Circuit Inspection".

Power Supply Circuit Inspection
1.

Check power circuit voltage

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Measure the voltage of main relay terminal 30.

(3)

Measure the voltage of main relay terminal 85.

1)

Specification : 11.5V~13.0V

(4)

Is the measured voltage within the specification?

YES

a.

Go to "Check power supply line(relay→actuator)" as follows.

NO

a.

Repair E/R JUNCTION BOX 30A ECU FUSIBLE LINK and related circuit and go to "Verification of Vehicle Repair"

2.

Check power supply line(relay→actuator)

(1)

IG KEY "OFF", ENGINE "OFF"

(2)

Disconnect main relay and ECM connector.

(3)

Connect main relay terminal 30 and terminal 87, terminal 87a using jump wire.

(4)

Measure the voltage of ECM connector(CDD-K) terminal 1, terminal 3 and terminal 5.

1)

Specification : 11.5V~13.0V

(5)

Is the measured voltage within the specification?

YES

a.

Go to "Control Circuit Inspection".

NO

a.

Check and repair the open circuit where voltage can not be checked and go to "Verification of Vehicle Repair".

Control Circuit Inspection
1.

Check open in control circuit

(1)

IG KEY "OFF", ENGINE "OFF"

(2)

Disconnect main relay and ECM connector.

(3)

Check continuity between main relay terminal 86 and ECM connector(CDD-K) terminal 72.

1)

Specification : Continuity ( below 1.0Ω )

(4)

Is the measured resistance within the specification?

YES

a.

Go to "2. Check short to ground in control circuit" as follows.

NO

a.

Repair open in control circuit and go to "Verification of Vehicle Repair".

2.

Check short to ground in control circuit

(1)

IG KEY "OFF", ENGINE "OFF"

(2)

Disconnect main relay and ECM connector.

(3)

Check continuity between main relay terminal 86 and chassis ground.

1)

Specification : Discontinuity ( Infinite Ω )

(4)

Is the measured resistance within the specification?

YES

a.

Go to "3.Check short to battery in control circuit" as follows.

NO

a.

Repair short to ground in control circuit and go to "Verification of Vehicle Repair".

3.

Check short to battery in control circuit

(1)

IG KEY "OFF", ENGINE "OFF"

(2)

Disconnect main relay and ECM connector.

(3)

IG KEY "ON"

(4)

Measure the voltage of main relay connector terminal 86.

1)

Specification : 0.0V~0.1V

(5)

Is the measured resistance within the specification?

YES

a.

Go to "Component Inspection".

NO

a.

Repair short to battery in signal circuit and go to "Verification of Vehicle Repair".

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