Terminal and Connector Inspection
1.

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.

2.

Thoroughly check all connectors(and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.

3.

Has a problem been found?

▶ Repair or replace as necessary and then, Go to "Verification of Vehicle Repair" procedue.

▶ In case SPAS ECU is replaced, Refer to "Component Inspection" procedure in DTC 1702 and perform SPAS Variant coding in the "Vehicle S/W Management" with GDS.

▶ Go to "Power Circuit Inspection" Procedure.

Power Circuit Inspection
1.

Ignition "ON" & Engine "OFF"

2.

Disconnect the PAS Sensor - Rear Right Inner connector.

3.

Measure the voltage between the power circuit (Pin No.1) of the PAS Sensor - Rear Right Inner and the body ground.

Reference waveform : Below

Fig.1) GDS oscilloscope waveform

1) A cursor : Approx 0.5 V

2) B cursor : Approx 8.0 V

3) DTC Detecting Condition : Sensor Supply Power is above 8.5 V or below 7.5 V

4.

Is the measured value within specifications?

▶ Go to "Ground Circuit Inspection" Procedure.

▶ Check the open or short to ground of the power circuit. And then go to "Verification of vehicle Repair" procedure.

Ground Circuit Inspection
1.

Ignition "ON" & Engine "OFF"

2.

Disconnect the battery (-) cable.

3.

Disconnect the PAS Sensor - Rear Right Inner connector.

4.

Measure the resistance between the ground circuit (Pin No.3) of the PAS Sensor-Rear Right Inner and the body ground.

Specification : Below approx. 1Ω

Fig.1) GDS Multimeter resistance check

5.

Is the measured value within specifications?

▶ Go to "Signal Circuit Inspection" Procedure.

▶ Check the open or short to ground of the power circuit. And then go to "Verification of vehicle Repair" procedure.

Signal Circuit Inspection
1.

Ignition "ON" & Engine "OFF"

2.

Disconnect the PAS Sensor - Rear Right Inner connector.

3.

Measure the voltage between the signal circuit (Pin No.2) of the PAS Sensor - Rear Right Inner and the body ground.

Reference waveform : Below

Fig.1) GDS oscilloscope waveform

4.

Is the measured value within specifications?

▶ Go to "Verification of vehicle Repair" procedure.

▶ Carefully re-do this troubleshooting guide steps and then, Go to "Verification of Vehicle Repair" procedue.

▶ In case SPAS ECU is replaced, Refer to "Component Inspection" procedure in DTC 1702 and perform SPAS Variant coding in the "Vehicle S/W Management" with GDS.

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