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.
KEY ON SW
When key is inserted into key cylinder : ON
When key is removed from key cylinder : OFF
Is the inspection result normal?
YES >> Inspection End.
NO >> Refer to WCS "Diagnosis Procedure".
Diagnosis Procedure
Regarding Wiring Diagram information, refer to WCS "Wiring Diagram".
1. CHECK FUSE
Check if the key switch 10A fuse [No. 8, located in the fuse block (J/B)] is blown.
Is the fuse blown?
YES >> Replace the fuse after repairing the affected circuit.
NO >> GO TO 2
2. CHECK BCM INPUT SIGNAL
Check voltage between BCM harness connector M18 terminal 37 and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> GO TO 3
3. CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector M18 and key switch.
2. Check continuity between BCM harness connector M18 terminal 37 and key
switch harness connector
M27 terminal 1.
3. Check continuity between BCM harness connector M18 terminal 37 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK KEY SWITCH POWER SUPPLY CIRCUIT
Check voltage between key switch harness connector M27 terminal 2 and ground.
Is the inspection result normal?
YES >> Replace key switch.
NO >> Repair or replace harness.
Component Inspection
1. CHECK KEY SWITCH
1. Turn ignition switch OFF.
2. Disconnect key switch.
3. Check continuity between key switch terminals 1 and 2.
1 -2
When key is inserted into key cylinder : Continuity should exist.
When key is removed from key cylinder : Continuity should not exist.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace key switch.
Air cleaner
WARNING
Operating the engine with the air
cleaner filter off can cause you or others
to be burned. The air cleaner filter not
only cleans the intake air, it also stops
the flame if the engine backfires. If the
air cleaner is not installed and the engine
backfires, you could be burn ...
P0712 Transmission fluid temperature
sensor A
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
P0712
Transmission Fluid Temperature
Sensor "A" Circuit Low
Under the following diagnosis
conditions, the A/T fluid temperature
identified by TCM is
180C (3 ...