6535531

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 "Signal Circuit Inspection".

1.

Check feed back signal circuit voltage

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect throttle control actuator connector.

(3)

IG KEY "ON"

(4)

Measure the voltage of throttle control actuator connector terminal 1.

1)

Specification : 0.0V~0.1V

(5)

Is the measured voltage within the specification?

YES

a.

Go to "2.Check open in feed back signal circuit" as follows.

NO

a.

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

2.

Check open in feed back signal circuit

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect Throttle control actuator connector and ECM connector.

(3)

Check continuity between throttle control actuator connector terminal 1 and ECM connector(CDD-K) terminal 77.

1)

Specification : Continuity (below 1.0Ω)

(4)

Is the measured resistance within the specification? (Is continuity confirmed?)

YES

a.

Go to "3. Check short to ground in feed back signal circuit" as follows.

NO

a.

Repair open in throttle control actuator feed back signal circuit and go to "Varification of Vehicle Repair".

3.

Check short to ground in feed back signal circuit

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect Throttle control actuator connector.

(3)

Check Check continuity between throttle control actuator connector terminal 1 and chassis ground.

1)

Specification : Discontinuity (Infinite Ω)

(4)

Is the measured resistance within the specification? (Is feed back signal circuit insulated with ground?)

YES

a.

Go to "Ground Circuit Inspection".

NO

a.

Repair short to ground in feed back signal circuit and go to "Verification of Vehicle Repair".

1.

IG KEY "OFF", ENGINE "OFF"

2.

Disconnect Throttle control actuator connector.

3.

IG KEY "ON"

4.

Measure the voltage of Throttle control actuator connector terminal 3. [ TEST "A" ]

5.

Measure the voltage between Throttle control actuator connector terminal 3 and terminal 4. [ TEST "B" ]

(terminal 3 : Check + prove , terminal 4 : Check - prove)

1)

Specification : [TEST "A"] Voltage - [TEST "B"] Voltage = below 200mV

6.

Is the measured voltage within the specification?

YES

a.

Go to "Component Inspection".

NO

a.

When "B" voltage is not detected : Repair open in ground circuit and go to "Verification of Vehicle Repair".

b.

When the voltage difference between "A" and "B" is above 200mV : Eliminate the causes of excessive resistance and go to "Verification of Vehicle Repair".