10681033

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 RPS connector.

3.

IG KEY "ON".

4.

Measure the voltage between power terminal of RPS harness connector and chassis ground.

Specification : 4.8V~5.1V

5.

Is the measured voltage within the specification?

▶ Go to "Signal Circuit Inspection".

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

[ Check between power terminal of RPS harness connector and ECM harness connector. ]

1.

Check signal circuit voltage

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect RPS connector.

(3)

IG KEY "ON".

(4)

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

Secification : 4.8V~5.1V

(5)

Is the measured voltage within the specification?

	▶ Go to "Ground Circuit Inspection".
	▶ Go to "2. Check open in signal circuit" as follows.

2.

Check open in signal circuit

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect RPS connector and ECM connector.

(3)

Check continuity between signal terminal of RPS harness connector and signal terminal of ECM harness connector.

Specification : continuity ( below 1.0Ω )

(4)

Is the measured resistance within the specification?

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

▶ Repair open in RPS signal circuit and go to "Verification of Vehicle Repair".

[ Check the circuit between signal terminal of RPS harness connector and ECM harness connector. ]

3.

Check short to battery in signal circuit

(1)

IG KEY "OFF", ENGINE "OFF".

(2)

Disconnect RPS connector and ECM connector.

(3)

IG KEY "ON".

(4)

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

Specification : 0.0V~0.1V

(5)

Is abnormal voltage measured in signal circuit(with both connectors disconnected)?

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

1.

IG KEY "OFF", ENGINE "OFF".

2.

Disconnect RPS connector.

3.

IG KEY "ON".

4.

Measure the voltage between signal terminal of RPS harness connector and chassis ground. [ TEST "A" ]

5.

Measure the voltage between signal terminal and ground terminal of RPS harness connector. [ TEST "B" ]

( Signal terminal : Check + prove , Ground terminal : Check - prove )

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

6.

Is the measured voltage within the specification?

▶ Go to "Component Inspection".

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

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