garajizOBD-II code · manufacturer-specific
P1938
Brake Switch/Sensor Signal
- System
- P1 — Powertrain (manufacturer-specific)
- Severity
- Critical (5/5)
- Can I keep driving?
- Drive with caution
What does P1938 mean?
P1938 is defined as “Brake Switch/Sensor Signal”.
Drive gently and only as far as you need to; have it checked as soon as possible.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Ford: Brake Switch/Sensor Signal
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This page is general information; an exact diagnosis needs measurements and a technician’s check.