Engine Hood Courtesy Switch
Parts LocationHeadlight Signal Circuit
DESCRIPTION
The headlight leveling ECU assembly detects the low beam headlights status.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
First check that the low beam headlights operate normally.
PROCEDURE
1.
CHECK HARNESS AND CON ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT FRONT POWER SEAT SWITCH LH (w/o Seat Position Memory System)
(a) Measure the resistance between the terminals when each switch is
operated.
Standard Resistance:
Slide Switch
Tester Co ...
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 ...