Description
Transmits a key switch signal to the BCM.
Component Function Check
1. CHECK BCM INPUT SIGNAL
Select "Data Monitor" for "BCM" and check the "KEY ON SW" monitor value.
Is the inspection result normal? YES >> Inspection End.
NO >> Refer to WCS-47, "Diagnosis Procedure".
Diagnosis Procedure
Regarding Wiring Diagram information, refer to WCS-29, "Wiring Diagram".
1. CHECK BCM INPUT SIGNAL
Check voltage between BCM harness connector M19 terminal 81 and ground.
Is the inspection result normal? YES >> Inspection End.
NO >> GO TO 2.
2. CHECK KEY SWITCH CIRCUIT
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness or connector.
3. CHECK KEY SWITCH POWER SUPPLY CIRCUIT
Check voltage between key switch harness connector M105 terminal 1 and ground.
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace harness or connector.
4. CHECK KEY SWITCH GROUND CIRCUIT
Check continuity between key switch harness connector M105 terminal 2 and ground.
Is the inspection result normal? YES >> Replace key switch.
NO >> Repair or replace harness or connector.
Component Inspection
1. CHECK KEY SWITCH
Is the inspection result normal? YES >> Inspection End.
NO >> Replace key switch.
Circuit inspection
DESCRIPTION
In general, testing electrical circuits is an easy task if it is
approached in a logical and organized method.
Before beginning it is important to have all available information on the
system to be tested. Also, get a thorough
understanding of system operation. Then y ...
Preparation
Special Service Tool
The actual shape of the tools may differ from those tools illustrated here.
Tool number
(TechMate No.)
Tool name
Description
—
(J-50190)
Signal Tech II
Activate and display TPMS transmitter IDs
Display tire ...
Rear window defogger and door mirror defogger do not operate
Diagnosis Procedure
Regarding Wiring Diagram information, refer to DEF-12, "Wiring Diagram".
1. CHECK REAR WINDOW DEFOGGER SWITCH
Check rear window defogger switch.
Refer to DEF-22, "WITH MANUAL A/C : Component Function Check".
Is the inspection result normal?
YES >& ...