![](../../../img/13/AK300975AC00ENG.png)
|
Q.
Is the check result normal?
Go to Step 2
.
Repair or
replace.
|
![](../../../img/13/AK300975AC00ENG.png)
|
- Disconnect connector, and measure at sensor
side.
- Resistance between terminal No. 1 and No.
3.
OK: 11 - 18 Ω
Q.
Is the check result normal?
Go to Step 3
.
Replace
cylinder 1, 4 oxygen sensor (rear).
|
![](../../../img/13/AK300975AC00ENG.png)
|
- Disconnect connector, and measure at harness
side.
- Ignition switch: ON
- Voltage between terminal No. 1 and earth.
OK: System voltage
Q.
Is the check result normal?
Go to Step 5
.
Go to Step 4
.
|
![](../../../img/13/AK305832AB00ENG.png)
![](../../../img/13/AK300975AC00ENG.png)
|
Q.
Is the check result normal?
![](../../../buttons/03btn001.png)
Check
intermediate connector C-116, and repair if necessary.
If intermediate connector is normal, check and repair
harness between B-23 (terminal No. 1) cylinder 1, 4
oxygen sensor (rear) connector and B-15X (terminal No.
1) engine control relay connector.
- Check power supply line for open/short
circuit.
Repair or
replace.
|
![](../../../img/13/AK305836AB00ENG.png)
|
- Measure engine-A/T-ECU terminal voltage.
- Ignition switch: ON
- Voltage between terminal No. 24 and earth.
OK: System voltage
Q.
Is the check result normal?
Go to Step 8
.
Go to Step 6
.
|
![](../../../img/13/AK305836AB00ENG.png)
|
Q.
Is the check result normal?
Go to Step 7
.
Repair or
replace.
|
![](../../../img/13/AK300975AC00ENG.png)
![](../../../img/13/AK305836AB00ENG.png)
|
- Check earthing line for open/short circuit.
Q.
Is the check result normal?
Replace
engine-A/T-ECU.
Repair.
|
![](../../../img/13/AK305836AB00ENG.png)
|
Q.
Is the check result normal?
Go to Step 9
.
Repair or
replace.
|
![](../../../img/13/AK300975AC00ENG.png)
![](../../../img/13/AK305832AB00ENG.png)
|
note |
Before checking harness
intermediate connector C-116, and repair if
necessary.
|
- Check power supply line for damage.
Q.
Is the check result normal?
Go to Step
10 .
Repair.
|
![](../../../img/13/AK300975AC00ENG.png)
![](../../../img/13/AK305836AB00ENG.png)
|
- Check earthing line for damage.
Q.
Is the check result normal?
Go to Step
11 .
Repair.
|
|
- Reconfirmation of diagnosis code.
|
|
Q.
Is the diagnosis code set?
|
|
Intermittent
malfunction (Refer to GROUP 00 - How to Use
Troubleshooting/Inspection Service Points ).
|
|
|