Terminal and Connection Inspection
1.

Disconnect the ETC Motor, TPS and PCM/ECM 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 "Power Circuit Inspection" procedure.

Power Circuit Inspection
■ Check voltage
1.

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

2.

IG "ON".

3.

Measure voltage between TPS power circuit of ETC harness connector and chassis ground.

Specification : Approx. 5V

4.

Is the measured voltage within specification ?

▶ Go to "Signal circuit inspection" procedure.

▶ Go to next step as below.

■ Check short to ground in harness
5.

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

6.

Measure resistance between TPS power terminal of ETC harness connector and chassis ground.

Specification : Infinite

7.

Is resistance within specification?

▶ Go to next step as below.

▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.

■ Check open in harness
8.

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

9.

Measure resistance between both ends of TPS Power line.

Specification : Below 1Ω

10.

Is resistance within specification?

▶ Go to next step as below.

▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.

Signal Circuit Inspection
■ Check short to ground in harness
1.

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

2.

Measure resistance between TPS1 signal terminal of ETC harness connector and chassis ground.

Specification : Infinite

3.

Is resistance within specification?

▶ Go to next step as below.

▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.

■ Check open in harness
4.

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

5.

Measure resistance between both ends of TPS1 signal line.

Specification : Below 1Ω

6.

Is resistance within specification?

▶ Go to next step as below.

▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.

Яндекс.Метрика