CAUTION / NOTICE / HINT
HINT:
PROCEDURE
|
1. |
VEHICLE BROUGHT TO WORKSHOP |
|
|
2. |
CUSTOMER PROBLEM ANALYSIS |
|
|
3. |
CHECK CAN COMMUNICATION SYSTEM* |
(a) Check for DTC output (See page
).
|
Result |
Proceed to |
|---|---|
|
No CAN DTC is output |
A |
|
CAN DTC is output |
B |
| B | |
GO TO CAN COMMUNICATION SYSTEM |
|
|
4. |
PROBLEM SYMPTOM CONFIRMATION |
|
|
5. |
SYMPTOM SIMULATION |
|
|
6. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table (See page
).
|
|
7. |
CIRCUIT INSPECTION |
|
|
8. |
REPAIR OR REPLACE |
|
|
9. |
CONFIRMATION TEST |
| NEXT | |
END |
System Diagram
System DescriptionCatalyst System Efficiency Below Threshold (Bank 1) (P0420)
MONITOR DESCRIPTION
The ECM uses sensors mounted in front of and behind the Three-Way Catalytic Converter
(TWC) to monitor its efficiency.
The first sensor, the air fuel ratio sensor, sends pre-catalyst information to
the ECM. The second sensor, the heat ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Perform "Inspection After Repair" after replacing the fuel pump assembly (See
page ).
PROCEDURE
1. DISCHARGE FUEL SYSTEM PRESSURE
(a) Discharge fuel system pressure (See page
).
2. DISCONNECT CABLE FR ...
Removal
REMOVAL
PROCEDURE
1. REMOVE WHEEL ASSEMBLY
2. REMOVE TIRE PRESSURE WARNING VALVE AND TRANSMITTER
(a) Remove the tire valve cap.
NOTICE:
Keep the removed tire valve cap.
(b) Remove the valve core to release the air from the tire.
NOTICE:
Make sure that ...