SYSTEM DIAGRAM
System Description
How To Proceed With TroubleshootingCatalyst 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 ...
Open in Occupant Classification ECU Battery Positive Line (B1794)
DESCRIPTION
This circuit consists of the occupant classification ECU and power source circuit
(battery, fuse and wire harness).
DTC B1794 is recorded when a malfunction is detected in the occupant classification
ECU or power source circuit.
HINT:
If DT ...
Drive Belt
Components
COMPONENTS
ILLUSTRATION
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT V-RIBBED BELT
(a) Check the belt for wear, cracks or other signs of damage.
If any of the following defects is found, replace the V-r ...