Brake Pressure Sensor G Range/Performance

Where it lives

For C0638, the part to look at first is the sensor named here.

Check these first

• A brake pressure sensor G that reads out of range
• A failed brake pressure sensor G
• An open or short in the brake pressure sensor G circuit
• A failed electronic brake control module

What to do next

1. Read brake pressure sensor G on a scan tool
2. Inspect the brake pressure sensor G connector and wiring
3. Test the sensor G circuit under pressure
4. Compare the sensor G reading against a known value
5. Replace brake pressure sensor G if it stays out of range
6. Clear the code and retest

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