Terminal and Connector Inspection
1.

Disconnect the ETC Motor, TPS and PCM connectors and inspect for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Reconnect the connectors.

2.

Connect the GDS and go to ""Current Data"".

3.

Monitor TPS values in Current Data, check and wiggle the harness(es), connector(s), and terminal(s).

4.

Any change in the values indicates a poor connection. Was a connector problem found?

▶ Repair the connector. Go to "Verification of Vehicle Repair" procedure.

▶ Go to "Signal Circuit Inspection" procedure.

Signal Circuit Inspection
■ Check voltage
1.

IG "OFF". Disconnect ETC Motor & TPS connector.

2.

IG "ON".

3.

Measure voltage between TPS1 signal terminal of ETC Motor & TPS harness connector and chassis ground.

Specification : Approx. 5V

4.

Is the measured voltage within specification ?

▶ Go to "Check open in harness" as follows.

▶ Go to "Check short to battery in harness" as follows.

■ Check open in harness
5.

IG "OFF". Disconnect ETC Motor & TPS connector and PCM connector.

6.

Measure resistance between TPS1 signal terminal of ETC Motor & TPS harness connector and TPS1 signal terminal of ECM harness connector.

Specification : Below 1Ω

7.

Is the measured resistance within specification ?

▶ Go to "Ground Circuit Inspection" procedure.

▶ Repair open in harness. Go to "Verification of Vehicle Repair" procedure.

■ Check short to battery in harness
8.

IG "OFF". Disconnect ETC Motor & TPS connector and PCM connector.

9.

Measure resistance between TPS1 signal and TPS power terminals of ETC Motor & TPS harness connector.(Measurement "A")

10.

Measure resistance between TPS1 signal and ETC motor(+) terminals of ETC Motor & TPS harness connector.(Measurement "B")

11.

Measure resistance between TPS1 signal and ETC motor(-) terminals of ETC Motor & TPS harness connector.(Measurement "B")

Specification : Infinite

12.

Is the measured resistance within specification ?

▶ Go to "Ground Circuit Inspection" procedure.

▶ Repair short to battery in harness. Go to "Verification of Vehicle Repair" procedure.

Ground Circuit Inspection
■ Check open in harness
1.

IG "OFF". Disconnect ECTS connector and then IG "ON".

2.

Measure voltage between TPS power terminal of ETC Motor & TPS harness connector and chassis ground.(Measurement "A")

3.

Measure voltage between TPS power and TPS ground terminals of ETC Motor & TPS harness connector.(Measurement "B")

Specification : Voltage difference between measurement "A" and "B" is below 200mV.

4.

Is the measured voltage within specification ?

▶ Go to "Component Inspection" procedure.

▶ Repair contact resistance or open in harness. Go to "Verification of Vehicle Repair" procedure.

Яндекс.Метрика