PURPOSE: To activate an oxygen concentration sensor early so as to obtain stable output concerning a heater control circuit of the oxygen concentration sensor. ;CONSTITUTION: Resistance R of a heater which heats an oxygen concentration sensor 1 is connected in parallel with compensation resistance r0...
While the sensor cools, the sensor resistance is measured by means of a large pull-up resistor and a small pull-up resistor, with the small resistor being switched into the circuit at regular intervals for a short period of time. The use of the small pull-up resistor not only increases ...
On some Toyota vehicles this code is triggered when the resistance of the heater circuit is above 10 A.With that said, a common fix for this DTC is to replace the air/fuel (O2 oxygen) sensor #2 on bank 1.Please keep in mind that OEM (original equipment) replacement sensors are ...
It basically means the PCM detected either an excessive current draw, or an open or short in the circuit powering the oxygen sensor's heater circuit. This is in reference to the Heated Oxygen Sensor (2) located rear of catalytic converter (Bank 2)....
4) HEGO Heated Exhaust Gas Oxygen Sensor 加热尾气含氧量传感器 5) thermal gas pressure microsensor 微加热式微气压传感器 1. Three types of test circuits, including constant temperature circuit, constant power circuit and constant bias circuit were designed according to resistance of the heater inthermal...
of oxygen by connecting a series circuit consisting of a resistor and a capacitative impedance element to the phase correction resistor of the voltage dividing circuit in a current/voltage converter circuit and setting the junction point of the resistor and the element to a conversion output ...
CIRCUIT BOARD HAVING OXYGEN CONCENTRATION SENSOR SIGNAL INPUT CIRCUIT, AND ELECTRONIC CONTROL DEVICE HAVING THE SAME PROBLEM TO BE SOLVED: To provide a signal input circuit board having high versatility capable of supporting resistance type and concentration cell type of ... I Tetsushi,T Shotaro 被...
problem that an excessively large sensor-current flows, accompanying the high applied voltage. In such a case, a large current flows into a bias control circuit for generating a voltage to be applied to the air-fuel ratio sensor, raising a problem such as dissipation of heat in the circuit....
Faulty o2 oxygen sensor Short to voltage on O2 signal circuit High resistance or open on O2 signal circuitPossible SolutionsReplace faulty sensor Repair short, open, or high resistance on o2 signal circuitRelated DTC DiscussionsRegister now to ask a question (free) ...
An oxygen concentration detector includes an air-fuel ratio sensor, a heater that heats the air-fuel ratio sensor, a heater controller that supplies electric power to the heater such that the air-fuel ratio sensor reaches an activation t... S Ikeda,Y Suzuki - US 被引量: 67发表: 2001年 ...