9041752

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.
	▶ Go to "Power Circuit Inspection" Procedure.

1.

Ignition "ON" & Engine "OFF"

2.

Disconnect the SPAS Control Module.

3.

Measure voltage between Pin No.13(IG1) of SPAS ECU harness connector and the chassis ground.

Specification : Battery (+) Voltage

Fig.1) GDS Multimeter voltage check

4.

Is the measured value within specifications?

	▶ Go to "Sensor Power circuit Inspection" Procedure.
	▶ Check the open or short to ground of the power circuit of the SPAS control Module. And then go to "Verification of Vehicle Repair" procedure.

5.

Ignition "ON" & Engine "OFF"

6.

Disconnect the SPAS/PAS each the front sensor connector.

7.

Measure the voltage between Pin No.1(Front sensor power) of the SPAS control Module and chassis 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

8.

Is the measured resistance within specifications?

▶ Fault is intermittent caused by poor contact in the sensor’s and/or SPAS ECU connector or was repaired and SPAS ECU memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure.

▶ Carefully re-do this troubleshooting guide steps.

▶ If no problems were found with the circuits or connectors, replace the PAS sensor and go to "Verification of Vehicle Repair" procedure.

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