Brake Booster Motor A Current Sensor Circuit Range/Performance

Where it lives

For C0596, start at the sensor the description names.

Check these first

• A motor A current sensor that reads outside the expected range
• A failed current sensor feeding the brake booster control
• A chafed harness on the motor A current sensor signal wire
• A current sensor that lost its calibration
• A control module input fault for the motor A current sensor

What to do next

1. Compare motor A current live data against the commanded value
2. Check the motor A current sensor connector and wiring
3. Test the current sensor signal wire for opens and shorts
4. Check the current sensor reference and ground circuits
5. Replace the motor A current sensor if the range stays wrong
6. Clear the code and retest

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