DTC P0117-00: ECT Sensor System: Low Input (PYUL)
WARNING: This page is about a different variant/trim than selected.
P0117-00 (PCM (PYUL)) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
ECT sensor system: Low input |
| Detection condition |
- The specified time has elapsed with the voltage of the ECT sensor less than the standard.
|
| Fail-safe |
- Fixes the water temperature for the engine control at 40°C {104°F}, and for the idle air control at 80°C {176°F}.
- The cooling fan is operated (high speed).
- Fuel cut control is canceled during shifting.
- Inhibits engine-stop by i-stop control.
|
| Vehicle status when DTCs are output |
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See CLEARING DTC
)
- Perform the KOEO or KOER self test. (See DTC INSPECTION
)
|
| Inspection/action procedure |
- Proceed with the inspection/action in the order from Step 1 below.
- After part repair or replacement, perform the repeatability verification procedure and perform a DTC inspection. (See DTC INSPECTION
)
- If the DTC inspection indicates the same DTC again, go to the next step.
- Inspect the cooling system.
Purpose/reason (possible cause)
Cooling system malfunction (overheat (engine cooling system malfunction))
Referred to service information item
See COOLING SYSTEM CONCERNS-OVERHEATING [PYUL]
- Inspect the wiring harness (including connector/terminal) between the ECT sensor and the PCM.
Purpose/reason (possible cause)
Malfunction in wiring harness (including connector/terminal) between ECT sensor and PCM
Referred to service information item
(See CIRCUIT INSPECTION
.) (See CONNECTOR INSPECTION
.)
- Inspect the ECT sensor.
Purpose/reason (possible cause)
ECT sensor malfunction
Referred to service information item
(See ENGINE COOLANT TEMPERATURE (ECT) SENSOR INSPECTION
)
- Replace the PCM.
Purpose/reason (possible cause)
PCM malfunction (no other possible malfunction considered)
Referred to service information item
(See PCM REMOVAL/INSTALLATION [H3T]
)
|
Refer to SYSTEM WIRING DIAGRAMS
 Courtesy of MAZDA MOTORS CORP.
|
| 1 |
PCM |
| 2 |
ECT sensor |