KEYLESS CONTROL MODULE INSPECTION [ADVANCED KEYLESS AND START SYSTEM]


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1.  Remove the glove compartment. (See GLOVE COMPARTMENT REMOVAL/INSTALLATION.)

2.  Remove the glove compartment cover. (See GLOVE COMPARTMENT COVER REMOVAL/INSTALLATION.)

3.  Measure the voltage according to the terminal voltage table.

•  If the voltages cannot be verified as indicated in the terminal voltage table, inspect the parts under “Inspection item(s)”.
―  If the system does not work normally even though the inspection items or related wiring harnesses do not have any malfunction, replace the keyless control module.


Terminal Voltage Table (Reference)

am2zzw00000699

Terminal

Signal name

Connected to

Measurement condition

Voltage (V)

Inspection item(s)

1D
Power supply
BCM
Under any condition
B+
ROOM 15 A fuse
BCM
Battery
1E
Power supply
P/W 20 A fuse
Under any condition
B+
P/W 20 A fuse
Battery
2A
Power supply
MIRROR 7.5 A fuse
Ignition switch at ACC position
B+
Ignition switch
MIRROR 7.5 A fuse
Battery
Ignition switch at LOCK position
1.0 or less
2B
Rx-PATS*
Coil antenna
Under any condition
B+
Coil antenna
2C
Power supply
ENG 10 A fuse
Ignition switch is at ON position
B+
Ignition switch
ENG 10 A fuse
Battery
Ignition switch at LOCK position
1.0 or less
2D
Tx-PATS*
Coil antenna
Ignition switch is at ON position
B+
Coil antenna
Ignition switch is at LOCK or ACC position
1.0 or less
2F
BCM communication
BCM
Under any condition
B+
BCM
2G
HS-CAN+
-
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
2H
Keyless entry communication
Keyless receiver
Under any condition
B+
Keyless receiver
2I
HS-CAN-
-
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
2L
Steering lock unit communication
Steering lock unit
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
3C
Keyless antenna (exterior, rear)
Keyless antenna (exterior, rear)
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
3F
Keyless antenna (LF)
Keyless antenna (LF)
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
3G
Liftgate unlock input
Liftgate opener switch
Liftgate opener switch pressed
3.0
Liftgate opener switch
Liftgate opener switch released
4.7
3I
Keyless antenna (interior, rear)
Keyless antenna (interior, rear)
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
3K
Keyless beeper power supply
Keyless beeper
Exterior keyless beeper sounds
5.0 or more
Keyless beeper
Other
1.0 or less
3N
GND
Body ground
Under any condition
1.0 or less
Ground
3O
Keyless antenna (RF)
Keyless antenna (RF)
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
3P
Lock input
Door lock-link switch (driver's door)
Driver's side door lock switch at LOCK
1.0 or less
Door lock-link switch
Driver's side door lock switch at UNLOCK
Approx. 10.0
3R
Keyless antenna (interior, front)
Keyless antenna (interior, front)
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
3U
Request switch input (RF)
Request switch (RF)
Driver's side request switch ON
1.0 or less
Front outer handle (RF)
Driver's side request switch OFF
B+
3V
Start knob (push switch)
Steering lock unit
Push switch in pressed condition
B+
Steering lock unit
Other
1.0 or less
3W
Key reminder switch
Steering lock unit
Key inserted in steering lock
B+
Steering lock unit
Other
1.0 or less
3X
Request switch input (LF)
Request switch (LF)
Passenger's door request switch ON
1.0 or less
Front outer handle (LF)
Passenger's door request switch OFF
B+
3Z
Keyless antenna (interior, rear)
Keyless antenna (interior, rear)
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
3AA
Keyless antenna (interior, front)
Keyless antenna (interior, front)
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
3AB
Keyless antenna (LF)
Keyless antenna (LF)
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
3AC
Keyless antenna (exterior, rear)
Keyless antenna (outside vehicle)
Terminal used for communication therefore determination based on terminal voltage inspection not possible.
3AD
Keyless antenna (RF)
Keyless antenna (RF)
Terminal used for communication therefore determination based on terminal voltage inspection not possible.

*  :With immobilizer system