Steering Angle Neutral Position Learning: Procedure
NOTE:
- If the steering angle neutral position is cleared, do the steering angle neutral position learning procedure.
- The steering angle neutral position is cleared whenever you do any of these actions:
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12 volt battery terminal is disconnected from the 12 volt battery.
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The power supply voltage for the steering gearbox is decreased.
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EPS motor/control unit replacement, removal, or installation.
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When a failure that cannot calculate the steering angle occurs in the EPS system.
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NOTE:
- There are two learning methods.
- If the steering angle neutral position is cleared, the VSA indicator, VSA OFF indicator will come on.
- When the EPS indicator comes on, it may not be possible to learn the steering angle neutral position.
Learning method with the HDS
- Steering Angle Neutral Position - Learn
Preconditions
- Vehicle on Level Ground
- Front Wheels Positioned Straight Ahead
- HDS Connected
Procedure
- Do the VSA sensor neutral position memorization - Refer to: VSA Sensor Neutral Position Memorization
or VSA Modulator-Control Unit Update
.NOTE:
When the VSA sensor neutral position memorization is performed, the current position is cleared and overwritten.
Learning method without the HDS
- Steering Angle Neutral Position - Learn
Procedure
- Drive the vehicle in a straight line at speeds of 10 mph (15 km/h).
NOTE:- When the steering angle neutral position learning is completed, the indicators that was lighted go off.
- The learning will complete after driving in a straight line for about 10 seconds.
- In the following cases, learning of the steering angle neutral position may not be completed.
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Driving on a non straight line.
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When driving on gravel roads, extremely rough roads, or on slippery roads such as snow or ice.
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Driving under 10 mph (15 km/h) or less.
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When driving on a road that leaned left and right.
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Rapid acceleration and deceleration.
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- If the learning does not complete, check the EPS system .