3.
Has a problem been found ?
 | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
 | ▶ Go to "Signal Circuit Inspection" procedure. |
Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Has a problem been found ?
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
| ▶ Go to "Signal Circuit Inspection" procedure. |
IG "OFF" and disconnect ETC Motor & TPS connector.
IG "ON".
Measure voltage between TPS1 signal terminal of ETC Motor & TPS harness connector and chassis ground.
Specification : Approx. 5V
Is the measured voltage within specification ?
| ▶ Go to "Check open in harness" as follows. |
| ▶ Go to "Check short to battery in harness" as follows. |
IG "OFF" and disconnect ETC Motor & TPS connector and ECM connector.
Measure resistance between TPS1 signal terminal of ETC Motor & TPS harness connector and TPS1 signal terminal of ECM harness connector.
Specification : Below 1Ω
Is the measured resistance within specification ?
| ▶ Go to "Ground Circuit Inspection" procedure. |
| ▶ Repair open in harness, and go to "Verification of Vehicle Repair" procedure. |
IG "OFF" and disconnect ETC Motor & TPS connector and ECM connector.
Measure resistance between TPS1 signal and TPS power terminals of ETC Motor & TPS harness connector.(Measurement "A")
Measure resistance between TPS1 signal and ETC motor(+) terminals of ETC Motor & TPS harness connector.(Measurement "B")
Measure resistance between TPS1 signal and ETC motor(-) terminals of ETC Motor & TPS harness connector.(Measurement "B")
Specification : Infinite
Is the measured resistance within specification ?
| ▶ Go to "Ground Circuit Inspection" procedure. |
| ▶ Repair short to battery in harness, and go to "Verification of Vehicle Repair" procedure. |
IG "OFF" and disconnect ECTS connector and then IG "ON".
Measure voltage between TPS power terminal of ETC Motor & TPS harness connector and chassis ground.(Measurement "A")
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.
Is the measured voltage within specification ?
| ▶ Go to "Component Inspection" procedure. |
| ▶ Repair contact resistance or open in harness and go to "Verification of Vehicle Repair" procedure. |
