P0126 · 제조사 기술 자료

MAZDA · 2024-06-12

Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable to this service information. If DTC P2B61:00 (Coolant control valve circuit range/performance) accompanies DTC P0126:00, this TSB is not applicable. Diagnose DTCs according to the instructions on MGSS online.

MAZDA · 2024-06-11

Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable to this service information. If DTC P2B61:00 (Coolant control valve circuit range/performance) accompanies DTC P0126:00, this TSB is not applicable. Diagnose DTCs according to the instructions on MGSS online.

MAZDA · 2024-06-08

A new repair procedure has been developed to address DTC P0126:00 on SKYACTIV-G 2.0/2.5L engines (non-turbo). Mazda has introduced a replacement kit of the thermostat located within the Coolant Control Valve (CCV). NOTE: It is no longer necessary to replace the CCV for this DTC.

MAZDA · 2023-12-20

Some customers may experience the check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up The engine temperature gauge fluctuates The low coolant temperature indicator (blue) light stays on longer or comes on while driving Poor heater performance, especially at idle

MAZDA · 2023-02-16

Some customers may experience the check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up. The engine temperature gauge fluctuates. The low coolant temperature indicator (blue) light stays on longer or comes on while driving. Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable. If DTC P2B61:00 (Coolant control valve circuit range/performance) accompanies DTC P0126:00, this TSB is not applicable. Diagnose according to the instructions on MGSS online. Due to production variety of the failsafe thermostat integrated in the coolant control valve, engine coolant may enter into a dry hollow in the failsafe thermostat, resulting in unintended opening of the…

MAZDA · 2022-10-19

Some customers may experience the CHECK ENGINE light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: * The engine takes longer to warm up * The engine temperature gauge fluctuates * The low coolant temperature indicator (blue) light stays on longer or comes on while driving * Poor heater performance, especially at idle NOTE: * Vehicles with SKYACTIV-G 2.5T are not applicable. * If DTC P2B61:00 (Coolant control valve circuit range/performance) accompanies, this information is not applicable. Diagnose according to the instructions in MGSS. Due to production variety of the failsafe thermostat integrated in the coolant control valve, engine coolant may enter into a dry hollow in the failsafe thermostat, resulting in unintended opening of the failsafe…

MAZDA · 2021-09-27

Some customers may experience the CHECK ENGINE light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up, The engine temperature gauge fluctuates, The low coolant temperature indicator (blue) light stays on longer or comes on while driving, Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable. Due to production variety of the failsafe thermostat integrated in the coolant control valve, engine coolant may enter into a dry hollow in the failsafe thermostat, resulting in unintended opening of the failsafe thermostat at lower temperatures (104-176 °F (40-80 °C)). To eliminate this concern, the production process of the coolant control valve has been modified.

MAZDA · 2021-04-22

Some customers may experience the CHECK ENGINE light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up, The engine temperature gauge fluctuates, The low coolant temperature indicator (blue) light stays on longer or comes on while driving, Poor heater performance, especially at idle. NOTE: Vehicles with SKYACTIV-G 2.5T are not applicable. Due to production variety of the failsafe thermostat integrated in the coolant control valve, engine coolant may enter into a dry hollow in the failsafe thermostat, resulting in unintended opening of the failsafe thermostat at lower temperatures (104-176 °F (40-80 °C)). To eliminate this concern, the production process of the coolant control valve has been modified.

MAZDA · 2021-03-08

CHECK ENGINE LIGHT ON WITH DTC P0126:00 AND ENGINE RUNNING COOLER THAN NORMAL / POOR HEATER PERFORMANCE / LOW ENGINE COOLANT TEMPERATURE (BLUE) LIGHT ON: Some customers may experience the CHECK ENGINE LIGHT ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up. The engine temperature gauge fluctuates. The low coolant temperature indicator (blue) light stays on longer or comes on while driving. Poor heater performance, especially at idle.

MAZDA · 2021-02-25

Some customers may experience the CHECK ENGINE LIGHT ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up. The engine temperature gauge fluctuates. The low coolant temperature indicator (blue) light stays on longer or comes on while driving. Poor heater performance, especially at idle.

MAZDA · 2020-12-02

Some customers may experience the CHECK ENGINE LIGHT ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up. The engine temperature gauge fluctuates. The low coolant temperature indicator (blue) light stays on longer or comes on while driving. Poor heater performance, especially at idle.

MAZDA · 2020-03-11

Some customers may experience the CHECK ENGINE LIGHT ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: à ̄‚· The engine takes longer to warm up. à ̄‚· The engine temperature gauge fluctuates. à ̄‚· The low coolant temperature indicator (blue) light stays on longer or comes on while driving. à ̄‚· Poor heater performance, especially at idle.

MAZDA · 2020-02-28

Some customers may experience the CHECK ENGINE LIGHT ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: The engine takes longer to warm up. The engine temperature gauge fluctuates. The low coolant temperature indicator (blue) light stays on longer or comes on while driving. Poor heater performance, especially at idle.

MAZDA · 2013-04-17

ON CERTAIN SUBJECT VEHICLES, THE MALFUNCTION INDICATOR LIGHT (MIL) MAY ILLUMINATE WITH DTC P0126:00 (THERMOSTAT STUCK OPEN) STORED IN THE POWERTRAIN CONTROL MODULE (PCM) MEMORY. THE THERMOSTAT FUNCTIONS NORMALLY, BUT THE “THERMOSTAT STUCK OPEN” CONDITION IS MISTAKENLY DETECTED DUE TO INAPPROPRIATE PCM SOFTWARE.THIS CONCERN WILL OCCUR UNDER THE FOLLOWING CONDITIONS: •WHEN DRIVING ON HIGHWAYS/FREEWAYS IMMEDIATELY AFTER A COLD START•WHEN THE AMBIENT TEMPERATURE IS 14 TO 32 DEGREES F (-10 TO 0 DEGREES C) •WHEN OPERATING THE HVAC SYSTEM IN THE MAXIMUM AIRFLOW MODE

MAZDA · 2013-04-02

ON CERTAIN SUBJECT VEHICLES, THE MALFUNCTION INDICATOR LIGHT (MIL) MAY ILLUMINATE WITH DTC P0126:00 (THERMOSTAT STUCK OPEN) STORED IN THE POWERTRAIN CONTROL MODULE (PCM) MEMORY. THE THERMOSTAT FUNCTIONS NORMALLY, BUT THE “THERMOSTAT STUCK OPEN” CONDITION IS MISTAKENLY DETECTED DUE TO INAPPROPRIATE PCM SOFTWARE.THIS CONCERN WILL OCCUR UNDER THE FOLLOWING CONDITIONS: •WHEN DRIVING ON HIGHWAYS/FREEWAYS IMMEDIATELY AFTER A COLD START•WHEN THE AMBIENT TEMPERATURE IS 14 TO 32 DEGREES F (-10 TO 0 DEGREES C) •WHEN OPERATING THE HVAC SYSTEM IN THE MAXIMUM AIRFLOW MODE

MAZDA · 2013-03-01

ON CERTAIN SUBJECT VEHICLES, THE MALFUNCTION INDICATOR LIGHT (MIL) MAY ILLUMINATE WITH DTC P0126:00 (THERMOSTAT STUCK OPEN) STORED IN THE POWERTRAIN CONTROL MODULE (PCM) MEMORY. THE THERMOSTAT FUNCTIONS NORMALLY, BUT THE “THERMOSTAT STUCK OPEN” CONDITION IS MISTAKENLY DETECTED DUE TO INAPPROPRIATE PCM SOFTWARE.THIS CONCERN WILL OCCUR UNDER THE FOLLOWING CONDITIONS: •WHEN DRIVING ON HIGHWAYS/FREEWAYS IMMEDIATELY AFTER A COLD START•WHEN THE AMBIENT TEMPERATURE IS 14 TO 32 DEGREES F (-10 TO 0 DEGREES C) •WHEN OPERATING THE HVAC SYSTEM IN THE MAXIMUM AIRFLOW MODE

MAZDA · 2013-03-01

MAZDA: MALFUNCTION INDICATOR LIGHT (MIL) WITH DTC P0126 INDICATING THE THERMOSTAT IS STUCK OPEN. THIS LIGHT IS COMING ON DUE TO INAPPROPRIATE PCM SOFTWARE. *KB

LAND ROVER · 2012-12-20

Technical Bulletin: Engine MIL Illuminated with DTC P0126-26/P0128-00 Stored

MAZDA · 2007-04-05

MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED - P0126 SET - THERMOSTAT MONITOR. *KB