Page 860 - Workshop Manual - Tunland (2017)
P. 860

04-174                     DIAGNOSTICS - ENGINE CONTROL SYSTEM

      04
           P691，P692-TURBOCHARGER 1 COMPRESSOR INLET
           TEMPERATURE CIRCUIT
           P691-TURBOCHARGER 1 COMPRESSOR INLET TEMPERATURE

           CIRCUIT -VOLTAGE IS ABOVE NORMAL OR SHORTED TO HIGH
           VOLTAGE POWER SUPPLY
           P692-TURBOCHARGER 1 COMPRESSOR INLET TEMPERATURE

           CIRCUIT -VOLTAGE IS BELOW NORMAL OR SHORTED TO HIGH
           VOLTAGE POWER SUPPLY

           Description
           1 .    The intake mass flow sensor is a variable resistor sensor, used to measure the
                  air temperature into the turbocharger compressor inlet.The engine control
                  module (ECM) provides a 5V power source to the intake mass flow sensor signal
                  circuit. ECM monitors voltage changes due to resistance changes in sensor to
                  determine the temperature of the air temperature

           Circuit Diagram
   855   856   857   858   859   860   861   862   863   864   865