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NO.3 POWER ASSIST DIFFERS BETWEEN RIGHT AND LEFT TURNS

BHE060301038W07

3 | Power assist differs between right and left turns.
TROUBLESHOOTING HINTS • Steering gear and linkage malfunction • EPS motor malfunction • Torque sensor malfunction • EPS control module malfunction • EPS system neutral position setting not performed.

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT FOR DTC IN EPS CONTROL MODULE • Have DTCs been recorded in the memory? | Yes | Perform inspection using the appropriate DTC, then go to Step 3.
No | Go to the next step.
2 | INSPECT STEERING WHEEL POWER ASSIST • Disconnect the EPS motor connector. • Inspect the steering wheel power assist. • Is there a difference in the steering wheel power assist between right and left turns? | Yes | Inspect the steering gear and linkage. If it is abnormal, replace it. (See STEERING GEAR AND LINKAGE REMOVAL/INSTALLATION.)
No | Go to the next step.
3 | INSPECT TORQUE SENSOR AND EPS MOTOR • Inspect the following items: – Measure the resistance of the torque sensor. Resistance: 12-15 ohms – Inspect the operating condition of the EPS motor. • Are they normal? | Yes | Inspect the torque sensor wiring harness and the EPS motor wiring harness. If they are normal, replace the EPS control module. (See EPS CONTROL MODULE REMOVAL/INSTALLATION.)
No | Replace the steering gear and linkage. (See STEERING GEAR AND LINKAGE REMOVAL/INSTALLATION.)