General Information

Engine Control
P011B Engine Coolant Temperature/Intake Air Temperature Correlation - General Information

Component Location





General Description

The engine has two temperature sensors, an Engine Coolant Temperature Sensor(ECTS) and an Intake Air Temperature Sensor(IATS), to detect the temperature while the engine is in operation. A thermistor, whose resistance value varies according to the temperature, is built into each sensor. When the temperature is low, the resistance of the thermistor increases. When the temperature is high, the resistance drops. These variations in resistance are transmitted to the PCM as voltage changes. Based on these temperature signals output from the sensors, the PCM determines the fuel injection time and the ignition timing to control the engine.

DTC Description

PCM sets DTC P011B if the PCM detects signal of the ECTS and IATS do not correlate within 15 seconds.

DTC Detecting Condition





Specification

ECTS





IATS






Diagnostic Circuit Diagram