XC70 L5-2.5L Turbo VIN 59 B5254T2 (2003)
functions using the signal from the temperature sensor.
The sensor, which is an NTC resistor, is grounded in the control module and supplied with power (signal) from the control module. The resistance in the
sensor changes according to the temperature of the intake air. This provides the control module with a signal of between 0-5 V. The lower the
temperature the higher the voltage (high resistance). A high temperature results in low voltage (low resistance).
The mass air flow (MAF) sensor is positioned between the air cleaner (ACL) housing and the intake manifold.
The engine control module (ECM) has diagnostics for the air mass and intake temperature of the mass air flow (MAF) sensor. The signals can be read