Component Inspection
■ Check EPS motor
1.

Ignition "OFF".

2.

Connect Scantool to Data Link Connector(DLC).

3.

Start engine and select "SCOPEMETER FUNCTION" on scantool.

4.

Operate the steering wheel to the left and right.

Specification :

Fig.1) Signal waveform of (+)side terminal when turning steering wheel.

The polarity of EPS motor is alternated as direction of steering wheel when driver rotate the steering wheel to right side or left. Therefore rotate the steering wheel to right side or left and then confirm the waveform that the polarity is alternated as direction of steering wheel at the terminal "1","2".

5.

Is EPS motor signal output within specifications?

▶ Substitute with a known-good steering column & EPS unit assembly check for proper operation.

If problem is corrected, replace steering column & EPS unit assembly and then go to "Verification of Vehicle Repair" procedure.

▶ Check EPS motor for contamination, deterioration, or damage.

Substitute with a known-good steering column assembly and check for proper operation.

note

Substitiuion is necessary because EPS motor is located in steering column assembly and disconnect is impossible.

If the problem is corrected, replace steering column assembly and then go to "Verification of Vehicle Repair" procedure.

Яндекс.Метрика