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.
Parking brake switch signal circuitDTC/circuit diagnosis
B2600-46 CONFIG ERROR
DTC Description
DTC DETECTION LOGIC
DTC
Trouble diagnosis
(Trouble diagnosis contents)
Detecting condition
B2600-46
CONFIG ERROR
(Configuration error)
When errors are detected in the configuration data stored in the BCM
(CAN
...
Automatic operation
Cooling and/or dehumidified heating
(AUTO)
This mode may be used all year round as the
system automatically works to keep a constant
temperature. Air flow distribution and fan speed
are also controlled automatically.
Press the AUTO button on. The indicator on
the button will illumin ...
ABC warning lamp
Component Function Check
1.CHECK ABS WARNING LAMP FUNCTION
Check that ABS warning lamp in combination meter turns ON for 1 second after
ignition switch is turned ON.
CAUTION:
Never start the engine.
Is the inspection result normal?
YES >> Inspection End.
NO >> Proceed to BRC-1 ...