Connect scantool to Data Link Connector(DLC) and start engine.
Monitor the "MOTOR CURRENT" and "TARGET MOTOR CURRENT" parameter on the scantool.
Operate the steering wheel to the left and right.
Specification : [MOTOR CURRENT - TARGET MOTOR CURRENT] < 10 A
Fig.1) Sensor output at turn a handle left during idle
Fig.2) Current characteristic chart
Check whether the target current magnitude is the same as the motor current magnitude, refer current characteristic chart according to present the vehicle speed and the torque sensor.
Is parameter within specifications?
 | ▶ Fault is intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and EPS CM memory is not cleared yet. Thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure. |
 | ▶ Go to "W/Harness Inspection" procedure. |
