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 supply in alternator connector (Sensing)

(1)

IG KEY "ON", Turn engine "OFF".

(2)

Disconnect alternator connector.

(3)

Measure the voltage of alternator connector terminal 1.

1)

Specification : 11.5V~13.0V

(4)

Is the measured voltage within the specification?

YES

a.

Go to "2. Check power supply in alternator connector (Charging lamp)"as follows.

NO

a.

epair E/R JUNCTION BOX 10A ECU.1 FUSE and related circuit and go to "Verification of Vehicle Repair".

2.

Check power supply in alternator connector (Charging lamp)

(1)

IG KEY "ON", Turn engine "OFF".

(2)

Disconnect alternator connector.

(3)

Measure the voltage of alternator connector terminal 2.

1)

Specification : 10.5V~12.0V

(4)

Is the measured voltage within the specification?

YES

a.

Go to "3. Check charging lamp operation"as follows.

NO

a.

Check charging lamp on cluster, M65 charging lamp resistor and related circuit and go to "Verification of Vehicle Repair".

3.

Check charging lamp operation

(1)

IG KEY "ON", ENGINE "OFF".

(2)

Disconnect alternator connector.

(3)

Measure the voltage of alternator connector terminal 2

1)

Specification : Charging lamp "ON" when grounded to chassis ground.

(4)

Does charging lamp turn ON?

YES

a.

Go to "4.Check voltage drop of aternator B+ cable"as follows.

NO

a.

Replace lamp and go to "Verification of Vehicle Repair".

4.

Check voltage drop of aternator B+ cable

(1)

IG KEY "ON", Turn engine "ON".

(2)

Measure the voltage difference between alternator B+ terminal and battery + terminal.

(Connect + terminal of multimeter to alternator B+ and connect - terminal of multimeter to battery +terminal. )

1)

Specification : Below 0.2V (below 200mV)

(3)

Is the measured voltage within the specification? (Is the voltage drop in alternator B+ cable normal? )

YES

a.

Go to "Component Inspection".

NO

a.

After checking corrosion and deformation of alternator B+ cable and replace it if needed and go to "Verification of Vehicle Repair".

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