6.
Measure output signal between terminal "4"of sensor harness connector and chassis ground.
a.
Specification :
Ignition "OFF".
Connect Scantool to Data Link Connector(DLC).
Engine "ON " and select "SCOPEMETER FUNCTION" on scantool.
Operate the steering wheel to the left and right.
Measure output signal between terminal "2"of sensor harness connector and chassis ground.
Measure output signal between terminal "4"of sensor harness connector and chassis ground.
Specification :
Is torque sensor main and sub signal within specifications?
YES
Substitute with a known-good EPS CM and check for proper operation.
If the problem is corrected, replace EPS CM and then go to "Verification of Vehicle Repair" procedure.
NO
Check torque sensor for contamination, deterioration, or damage. Substitute with a known-good steering column assembly and check for proper operation.
Substitiuion is necessary because torque sensor 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.
