LF CONTROL UNIT INSPECTION [(US)]
LF CONTROL UNIT INSPECTION [(US)]
SM2566403
id0914001106x1
1.Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
2.Remove the front side trim. (See LF CONTROL UNIT REMOVAL/INSTALLATION.)
3.Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)].)
4.Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (See Terminal voltage table (reference).)
-
• If the voltage is not as specified in the terminal voltage table (See Terminal voltage table (reference).), inspect the parts under Inspection item(s).
-
― If the system does not work normally even though the inspection items are normal, replace the LF control unit.
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Terminal voltage table (reference)
am3zzw00027710
|
|
Terminal |
Signal name |
Connected to |
Measurement conditions |
Voltage (V) |
Inspection item (s) |
|||
|---|---|---|---|---|---|---|---|---|
|
A
|
—
|
—
|
—
|
—
|
—
|
|||
|
B
|
B1(ROOM)
|
• JB No.1
• F50 15 A fuse
• F27 25 A fuse
|
Under any condition
|
B+
|
• JB No.1
• F50 15 A fuse
• F27 25 A fuse
• Related wiring harness
|
|||
|
C
|
—
|
—
|
—
|
—
|
—
|
|||
|
D
|
B2(LIMP HOME)
|
• F22 15A fuse
• Push button start
|
Under any condition
|
B+
|
• F22 15A fuse
• Push button start
• Related wiring harness
|
|||
|
E
|
L/G LOCK SW
|
Liftgate lock switch(5HB)
|
When liftgate lock switch is pressed
|
1.0 or less
|
• Liftgate lock switch(5HB)
• Related wiring harness
|
|||
|
When liftgate lock switch is not pressed
|
B+
|
|||||||
|
F
|
RF PWR
|
Keyless receiver
|
Under any condition
|
Approx 5.0
|
• Keyless receiver
• Related wiring harness
|
|||
|
G
|
FR_POWER_SIGNAL
|
Front outer handle (RH)
|
When Front outer handle (RH) is touched
|
B+
|
• Front outer handle (RH)
• Related wiring harness
|
|||
|
When Front outer handle (RH) is not touched
|
1.0 or less
|
|||||||
|
H
|
FL_POWER_SIGNAL
|
Front outer handle (LH)
|
When Front outer handle (LH) is touched
|
B+
|
• Front outer handle (LH)
• Related wiring harness
|
|||
|
When Front outer handle (LH) is not touched
|
1.0 or less
|
|||||||
|
I
|
—
|
—
|
—
|
—
|
—
|
|||
|
J
|
RF SIG
|
Keyless receiver
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
K
|
FL_GND
|
Front outer handle (LH)
|
Under any condition
|
1.0 or less
|
• Front outer handle (LH)
• Related wiring harness
|
|||
|
L
|
Serial LFU
|
Body control module (BCM)
|
Under any condition
|
B+
|
• Body control module (BCM)
• Related wiring harness
|
|||
|
M
|
CAN BODY H
|
IP_ESU
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
N
|
FR_GND
|
Front outer handle (RH)
|
Under any condition
|
1.0 or less
|
• Front outer handle (RH)
• Related wiring harness
|
|||
|
O
|
GND
|
Body ground
|
Under any condition
|
1.0 or less
|
Related wiring harness
|
|||
|
P
|
CAN BODY L
|
IP_ESU
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
Q
|
INT LF-ANT SHIELD
|
Keyless antenna (exterior, LF)
|
Under any condition
|
1.0 or less
|
Related wiring harness
|
|||
|
R
|
GND
|
Body ground
|
Under any condition
|
1.0 or less
|
Related wiring harness
|
|||
|
S
|
LF FL-
|
Front outer handle (LH)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
T
|
LF FL+
|
Front outer handle (LH)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
U
|
LF FR-
|
Front outer handle (RH)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
V
|
LF FR+
|
Front outer handle (RH)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
W
|
LF F-
|
Keyless antenna (interior, front)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
X
|
LF F+
|
Keyless antenna (interior, front)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
Y
|
LF BUM-
|
Keyless antenna (exterior, bumper)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
Z
|
LF BUM+
|
Keyless antenna (exterior, bumper)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
AA
|
LF R-
|
Keyless antenna (interior, center)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
AB
|
LF R+
|
Keyless antenna (interior, center)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
AC
|
—
|
—
|
—
|
—
|
—
|
|||
|
AD
|
—
|
—
|
—
|
—
|
—
|
|||
|
AE
|
PATS-
|
Push button start
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
|
AF
|
PATS+
|
Push button start
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||