START STOP UNIT INSPECTION

id091400110400

Note
•  Terminals with terminal voltage that cannot be measured are not indicated in the terminal voltage table (reference).

1.  Remove the Column cover. (See COLUMN COVER REMOVAL/INSTALLATION.)

2.  Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).

•  If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s) and related wiring harnesses.
?  If the system does not work normally even though the inspection items or related wiring harnesses do not have any malfunction, replace the start stop unit. (See START STOP UNIT REMOVAL/INSTALLATION.)


Terminal Voltage Table (Reference)

am2zzw00008324

Terminal

Signal name

Connected to

Measurement conditions

Voltage (V)

Inspection item(s)
1A
Power supply
INTERIOR 10 A fuse
Under any condition
B+
•  INTERIOR 10 A fuse
•  Battery
1B
Power supply
C/U IG1 15 A fuse
Ignition switched ON (engine off)
B+
•  C/U IG1 15 A fuse
•  Battery
Ignition switched OFF (LOCK) or at ACC
1.0 or less
1C
Brake switch
Brake switch
Brake pedal depressed
B+
Brake switch
Brake pedal not depressed
1.0 or less
1D
Starter monitor
Starter relay
Ignition switched ON (engine off)
Other than selector lever is in P or N position
B+
•  Start Stop Unit
•  Starter relay
•  PCM
Selector lever is in P or N position
1.0 or less
1E
ACC monitor
MIRROR 7.5 A fuse
Switch the ignition to ACC or ON (engine off or on)
B+
•  MIRROR 7.5 A fuse
•  ACC relay
•  Battery
Ignition switched OFF (LOCK)
1.0 or less
1F
Selector lever position switch (ATX)
TCM
Other than selector lever is in P or N position
B+
TCM
Selector lever is in P or N position
1.0 or less
1G
Hazard warning switch signal
Hazard warning switch
Hazard warning switch not pressed (OFF)
B+
Hazard warning switch
Hazard warning switch pressed (ON)
1.0 or less
1H
Push button start 1
Push button start
Push button start pressed
1.0 or less
Push button start
Push button start not pressed
B+
1I
Push button illumination
Push button start
Determination using terminal voltage inspection is not possible.
Push button start
1J
P position
Not P position switch
Selector lever is in P position
B+
Not P position switch
Except above
1.0 or less
1K
Push button illumination (green)
Push button start
Engine starting conditions are met
1.0 or less
Push button start
Except above
B+
1M
Push button illumination (amber)
Push button start
Ignition switched to ACC or ON (engine off)
1.0 or less
Push button start
Except above
B+
1P
Lock input
•  Door lock-link switch (driver's door)
•  Power liftgate (PLG) control module*5
Driver's door locked
1.0 or less
•  Door lock-link switch (driver's door)
•  Power liftgate (PLG) control module*5
Driver's door unlocked
B+*5
5.0*6
1Q
Rear body control module (RBCM) communication
Rear body control module (RBCM)
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
1S*3
Steering angle sensor power supply
Steering angle sensor
The specified time has elapsed since key placed outside vehicle and all doors locked
1.0 or less
Steering angle sensor
Except above
Approx. 5
1T*3
Steering angle sensor ground
Steering angle sensor
Under any condition
1.0 or less
Steering angle sensor
1U*3
Steering angle sensor (signal A/D1)
Steering angle sensor
Steering wheel is turned to left and right
4.00—4.75Û0.25—0.75
Steering angle sensor
1V
Windshield wiper switch signal (LO)
Front body control module (FBCM)
Ignition switch ON (engine off or on)
Other than windshield wiper switch at LO and HI
B+
Front body control module (FBCM)
Windshield wiper switch at LO
1.0 or less
1W*3
Steering angle sensor (signal A/D1)
Steering angle sensor
Steering wheel is turned to left and right
4.00—4.75Û0.25—0.75
Steering angle sensor
1X
Headlight switch signal (LO)
Front body control module (FBCM)
Light switch at position other than HEAD and passing
B+
Front body control module (FBCM)
Light switch at HEAD position
1.0 or less
1Y
Cruise control switch signal
Cruise control switch
OFF / CANCEL switch is pressed
0
Cruise control switch
SET (-) switch is pressed
0.3
SET (+) / RES (+) switch is pressed
0.6
ON or MODE switch is pressed
1.1
RES switch is pressed
1.5
DISTANCE (+) switch is pressed
1.9
DISTANCE (-) switch is pressed
2.4
Except above
3.7
1Z
Cruise control switch ground
Cruise control switch
Under any condition
1.0 or less
Cruise control switch
1AA
Steering switch signal
Steering switch
INFO button is pressed
Approx. 2.3
Steering switch
Except above
Approx. 3.4
1AB
Steering switch ground
Steering switch
Under any condition
1.0 or less
Steering switch
1AC
PATS+
Coil antenna (push button start)
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
1AE
PATS-
Coil antenna (push button start)
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
1AF
GROUND
Body ground
Under any condition
1.0 or less
Body ground
2A
GROUND
Body ground
Under any condition
1.0 or less
Body ground
2B
GROUND
Body ground
Under any condition
1.0 or less
Body ground
2C
ACC relay control
ACC relay
Switch the ignition to ACC or ON (engine off or on)
B+
•  ACC relay
•  OUTLET relay
Ignition switched OFF (LOCK)
1.0 or less
2D
IG2 relay control
Front body control module (FBCM)
Ignition switched ON (engine off)
B+
Front body control module (FBCM)
Ignition switched OFF (LOCK) or at ACC
1.0 or less
2E
—
—
—
—
—
2F*1
LF control unit communication
LF control unit
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2G
Shift lock
Shift lock solenoid
Ignition switch ON (engine off or on)
Selector lever at position except P
B+
Shift lock solenoid
Selector lever at P position and brake pedal depressed
1.0 or less
2H*1
LF control unit communication
LF control unit
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2I*2
Keyless antenna (inside vehicle, center)
Keyless antenna (inside vehicle, center)
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2J
Push button start 2
Push button start
Push button start pressed
1.0 or less
Push button start
Push button start not pressed
B+
2K*2
Keyless antenna (inside vehicle, center)
Keyless antenna (inside vehicle, center)
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2L*2
Shield ground
Shield wire
Under any condition
1.0 or less
Body ground
2M
HS-CAN+
—
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2O
HS-CAN-
—
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2Q
Keyless receiver power supply
Keyless receiver
Under any condition
Approx. 5
Keyless receiver
2R
Keyless receiver communication
Keyless receiver
Because this terminal is for communication, determination using terminal voltage inspection is not possible.
2S
IG1 relay control
IG1 relay
Ignition switched ON (engine off)
B+
IG1 relay
Ignition switched OFF (LOCK) or at ACC
1.0 or less
2V
Starter relay
Starter relay
When cranking
B+
•  Starter relay
•  PCM
•  Start stop unit
Except above*6
1.0 or less, or B+*6
2W
Power supply
AT 15 A fuse
Under any condition
B+
•  AT 15 A fuse
•  Battery
2X
Power supply (ESCL)
SRS2/ESCL 15 A fuse
Under any condition
B+
•  SRS2/ESCL 15 A fuse
•  Battery
*1  :With advanced keyless system
*2  :Without advanced keyless system
*3  :With ADAPTIVE LED HEADLIGHT SYSTEM
*4  :Because the voltage varies depending on the vehicle conditions, examination using the terminal voltage inspection is not possible.
*5  :With power liftgate (PLG)
*6  :Without power liftgate (PLG)