Error code
OBD2 P0A00
OBD2P0A00
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Motor Electronics Coolant Temperature Sensor Circuit.
Severity
moderateCan be driven but may cause long-term damage if not addressed.
Summary
P0A00 indicates an issue with the Motor Electronics Coolant Temperature Sensor Circuit, which monitors engine coolant temperature.
Common Causes
- Faulty coolant temperature sensor
- Loose or corroded electrical connector on the coolant temperature sensor
Fixes
- Replace the faulty coolant temperature sensor.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P0A01Motor Electronics Coolant Temperature Sensor Circuit Range/Performance
- P0A02Motor Electronics Coolant Temperature Sensor Circuit Low
- P0A03Motor Electronics Coolant Temperature Sensor Circuit High
- P0A04Motor Electronics Coolant Temperature Sensor Circuit Intermittent
- P0A05Motor Electronics Coolant Pump Control Circuit/Open
- P0A06Motor Electronics Coolant Pump Control Circuit Low
- P0A07Motor Electronics Coolant Pump Control Circuit High
- P0A08DC/DC Converter Status Circuit
- P0A09DC/DC Converter Status Circuit Low Input
- P0A10DC/DC Converter Status Circuit High Input
- P0A11DC/DC Converter Enable Circuit/Open
- P0A12DC/DC Converter Enable Circuit Low