DTC P011A-00: ECT Sensor No. 1/No. 2 Performance Problem: Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC P011A:00 (PCM, SKYACTIV-G) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	ECT sensor No. 1/No. 2 performance problem
Detection condition	Any one of the following conditions is met, the PCM detects a circuit/range performance problem: When the ECT sensor No. 2 detected temperature is approx. 28°C {82°F} higher than the ECT sensor No. 1 with the ignition switch is ON. Precondition Period vehicle being left: 6 h or more Battery voltage: 8.0 V or more When the ECT sensor No. 2 detected temperature is approx. -18°C {-0.40°F} less than the ECT sensor No. 1 with the ignition switch is ON. Precondition Engine coolant flow after engine is started: 45 L {48 US qt, 40 Imp qt} or more Engine speed: 500 rpm or more The DTCs are not detected: P0117:00, P0118:00, P2184:00 and P2185:00 Battery voltage: 8.0 V or more
Fail-safe	Not applicable
Possible cause	ECT sensor No. 1 connector or terminals malfunction ECT sensor No. 2 connector or terminals malfunction PCM connector or terminals malfunction ECT sensor No. 1 malfunction ECT sensor No. 2 malfunction PCM malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable