garajizOBD-II code · generic
P0599
Thermostat Heater Control Circuit High
- System
- P0 — Powertrain (generic)
- Severity
- Minor (2/5)
- Can I keep driving?
- Drive with caution
What does P0599 mean?
P0599 is defined as “Thermostat Heater Control Circuit High”.
Drive gently and only as far as you need to; have it checked as soon as possible.
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This page is general information; an exact diagnosis needs measurements and a technician’s check.