COMPONENTS
ILLUSTRATION
On-vehicle InspectionInstallation
INSTALLATION
PROCEDURE
1. INSTALL THERMOSTAT
(a) Install a new gasket to the thermostat.
(b) Install the thermostat with the jiggle valve facing upward.
HINT:
The jiggle valve may be set to within 10° on either side of the prescribed
...
Catalyst 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 ...
Control Module Communication Bus OFF (U0073/86,U0100/85,U0129/83)
DESCRIPTION
The AWD control ECU inputs the signals sent from the ECM and skid control
ECU via the CAN communication system.
When DTCs indicating a CAN communication system malfunction are output,
repair the CAN communication system before r ...