Chevrolet Sonic Repair Manual: Brake Pedal Position Sensor Calibration
- Calibration Criteria
-
Note:
Do not apply the brake pedal during the brake pedal position sensor calibration procedure. Any movement of the brake pedal during this procedure will cause the calibration procedure to fail. If this occurs, the brake pedal position sensor calibration must be repeated.
Brake pedal position sensor calibration must be performed after the brake pedal position sensor, body control module (BCM), or engine control module (ECM) have been serviced. The calibration procedure will set the brake pedal position sensor home value. This value is used by the BCM and ECM to determine the action of the driver applying the brake system and to provide this information to the vehicle subsystems via serial data.
- Calibration Procedure
-
- Apply the parking brake.
- Ignition ON, engine OFF, place the transmission in the PARK position for automatic transmission or NEUTRAL position for manual transmission.
- Install a scan tool.
- Clear all DTCs before proceeding.
- Navigate to the Configuration/Reset Functions menu of the BCM.
- Select the Brake Pedal Position Sensor Learn procedure and follow the directions displayed on the screen.
- Navigate to the Configuration/Reset Functions menu of the ECM.
- Select the Learn Functions menu.
- Select the Brake Pedal Position Sensor Learn procedure and follow the directions displayed on the screen.
Brake Pedal Assembly Replacement
Removal Procedure
Remove the battery tray. Refer to Battery Tray Replacement.
Remove the power vacuum brake booster bolts (1).
Remove the brake pedal ass ...
Brake Pedal Position Sensor Replacement
Removal Procedure
Remove the instrument panel lower trim pad cover. Refer to Instrument
Panel Lower Trim Pad Cover Replacement.
Disconnect the brake pedal position sen ...
Other materials:
Front Side Door Lock Cylinder Coding (Non Free Wheeling)
The door lock cylinder uses 8 of the 8 cut positions. The tumbler positions are
staggered from side to side, 4 on one side and 4 on the other, are not self-retaining,
and are not snap in.
Note: All lock cylinders for side milled keys have right and left
tumblers. The locat ...
Tire Inspection
We recommend that the tires, including the spare tire, if the vehicle has
one, be inspected for signs of wear or damage at least once a month.
Replace the tire if:
The indicators at three or more places around the tire can be seen.
There is cord or fabric showing through the tire's ...
Scrub Radius Description
Ideally, the scrub radius is as small as possible. Normally, the SAI angle and
the centerline of the tire and the wheel intersect below the road surface, causing
a positive scrub radius. With struts, the SAI angle is much larger than the long
arm/short arm type of suspension. This allows the S ...
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