Description
The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sensor.
The sensor element of the A/F sensor 1 is composed an electrode layer, which transports ions. It has a heater in the element.
The sensor is capable of precise measurement = 1, but also in the lean and rich range. Together with its control electronics, the sensor outputs a clear, continuous signal throughout a wide range.
The exhaust gas components diffuse via the diffusion layer at the sensor cell. An electrode layer is applied voltage, and this current relative oxygen density in lean. Also this current relative hydrocarbon density in rich.
Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this electrode layer of current. In addition, a heater is integrated in the sensor to ensure the required operating temperature of about 800C (1,472F).
DTC Logic
DTC DETECTION LOGIC
To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal is not inordinately high.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always preform the following before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10.5 V at idle.
2.CHECK A/F SENSOR 1 FUNCTION
With CONSULT
With GST
Follow the procedure "With CONSULT" above
3.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
NOTE:
With GST
Follow the procedure "With CONSULT" above.
Diagnosis Procedure
1.CHECK GROUND CONNECTION
2.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
3.DETECT MALFUNCTIONING PART
Check the following.
4.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
5.CHECK INTERMITTENT INCIDENT
6.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning air fuel ratio (A/F) sensor 1.
CAUTION:
Antenna AMP
Removal and Installation
REMOVAL
Remove the rear pillar finisher RH. Refer to INT-23, "Exploded
View".
Detach the antenna amp. harness clip (A).
Disconnect the harness connectors (B) from the antenna amp.
(1).
Remove the antenna amp. screw (C) and the antenna amp. (1).
INSTALLAT ...
U1000 CAN comm circuit
Description
CAN (Controller Area Network) is a serial communication
line for real time applications. It is an on-vehicle multiplex
communication line with high data communication speed and excellent error
detection ability. Modern
vehicle is equipped with many electronic control unit, and e ...
Service data and specifications (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Compressor
Oil
Refrigerant
...