Hint:
Sensor 1 refers to the sensor mounted in front of the three-way catalytic converter (twc) and located near the engine assembly.
Description
Refer to dtc p2195 (see page es-292).
Monitor description
After the engine is warmed up, the ecm performs air-fuel ratio feedback control to maintain the air-fuel ratio at the stoichiometric level. In addition, active a/f control is performed for approximately 10 seconds after the preconditions are met in order to measure the a/f sensor response rate. During active a/f control, the ecm forcibly increases and decreases the injection volume a certain amount, based on the stoichiometric air-fuel ratio learned during normal air-fuel ratio control, and measures the a/f sensor response rate. The ecm receives a signal from the a/f sensor while performing active a/f control and uses it to calculate the a/f sensor response rate deterioration level.
If the a/f sensor response rate deterioration level is less than the threshold, the ecm interprets this as a malfunction and sets the dtc.
Confirmation driving pattern
Hint:
Performing this confirmation pattern will activate the a/f sensor response monitor.
Hint:
Completion of all a/f sensor monitors is required to change the value in test result.
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Monitor result
Refer to checking monitor status (see page es-17).
Wiring diagram
Inspection procedure
Hint:
Intelligent tester only: malfunctioning areas can be identified by performing the a/f control function provided in the active test. The a/f control function can help to determine whether the air-fuel ratio (a/f) sensor, heated oxygen (ho2) sensor and other potential trouble areas are malfunctioning.
The following instructions describe how to conduct the a/f control operation using the intelligent tester.
Hint:
Standard
Notice:
The a/f sensor has an output delay of a few seconds and the ho2 sensor has a maximum output delay of approximately 20 seconds.
Following the a/f control procedure enables technicians to check and graph the voltage outputs of both the a/f and ho2 sensors.
To display the graph, select the following menu items on the tester: diagnosis / enhanced obd ii / active test / a/f control / user data / afs b1 s1 and o2s b1 s2; and press the yes button and then the enter button followed by the f4 button.
Hint:
If any dtcs relating to the a/f sensor (dtcs for the a/f sensor heater or a/f sensor admittance) are output, troubleshoot those dtcs first.
Components (2005/11-2006/01)
Sliding roof ecu power source circuit
Description
If the sliding function and tilt function do not operate, there may be a
malfunction in the sliding roof ecu
power source circuit.
Wiring diagram
Inspection procedure
Perform active test by i ...
Can communication system
Precaution
Precaution
Turn the ignition switch off before measuring the
resistance of the main wire and the branch wire.
After the ignition switch is turned off, check that the
key reminder warning system and light reminder
warning system are not in operation.
Before measuring th ...
Dtc check / clear
Check dtc
Connect the intelligent tester (with can vim) to the
dlc3.
Turn the ignition switch on and turn the intelligent
tester on.
Select the following menu items: diagnosis /
obd/mobd / immobiliser / dtc info /
current codes.
Check dtcs and then write them down.
Hint ...