Brake Pressure Sensor D Circuit/Open

Where it lives

For C0577, the circuit described runs through the sensor. The description of C0577 reports the sensor as open.

Check these first

• An open in the brake pressure sensor D signal wire
• An unplugged or loose sensor D connector
• A broken wire in the sensor D harness
• A failed brake pressure sensor D with an open internal circuit
• A bent or pushed out pin in the sensor D connector

What to do next

1. Check the brake pressure sensor D connector for a loose or unplugged fit
2. Test the sensor D signal wire for an open
3. Check the sensor D reference and ground circuits for an open
4. Measure sensor D resistance to check for an internal open
5. Replace brake pressure sensor D if the wiring tests good
6. Clear the code and retest

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