C059E code meaning
Brake Pressure Sensor E Missing Calibration
What C059E means
C059E reports that sensor E, one more pressure sensor in a multi-sensor brake unit, has never been calibrated successfully or that its record is lost. No maker documents C059E publicly; for sensor E only the circuit codes C059F–C05A2 exist. GM's published logic for related sensors shows what can go wrong: for its pedal travel sensor (C05D4) the stored status reports a failed zeroing if the sensor had an electrical fault, the car moved or the brake was applied during calibration, or the offset was too big, too small or unsteady. For pressure sensor A GM's 2025 tables check only the status flag, 500 ms after wake-up, Type A. Saab lists module or modulator replacement as reasons to recalibrate. Rerun the calibration with the car stationary and the pedal untouched.
C059E at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor0.3 to 1.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of C059E
- ABS/ESC or brake system warning lamp on
- Brake assist or stability functions disabled
Common causes of C059E
- Most likelyCalibration run while the vehicle moved or the brake pedal was pressed
- Most likelyCalibration skipped after replacing the brake module or hydraulic unit
- PossibleSensor offset too large or unstable so the calibration is rejected
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Brake pressure sensor eBrake control module
What each part of C059E means
| C | Chassis system: brakes, ABS, steering and suspension. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 9E | The exact fault in that area. |
What to do next
- Note C059E and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about C059E
What does C059E mean?
C059E means "Brake Pressure Sensor E Missing Calibration". C059E reports that sensor E, one more pressure sensor in a multi-sensor brake unit, has never been calibrated successfully or that its record is lost. It is a generic code, so it means the same on every make.
Is it safe to drive with C059E?
Drive gently and only to a workshop. With C059E the car can go into limp mode (reduced power) to protect itself.
Will C059E fail an emissions test?
C059E is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is C059E to fix?
Difficulty: workshop only. A typical repair takes 0.3 to 1.5 hours of work. This is a job for a workshop.
Will C059E clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.