LF CONTROL UNIT INSPECTION
id091400110600
1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)
2. Remove the service hole cover on the front side trim. (See LF CONTROL UNIT REMOVAL/INSTALLATION.)
3. Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)
4. Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).
Terminal voltage table (reference)
|
Terminal |
Signal name |
Connected to |
Measurement conditions |
Voltage (V) |
Inspection item (s) |
|||
---|---|---|---|---|---|---|---|---|
A
|
Request switch signal
(RF)
|
Request switch (RF)
|
When passenger's side request switch is pressed
|
1.0 or less
|
• Front outer handle (passenger's side)
• Related wiring harness
|
|||
When passenger's side request switch is not pressed
|
5.0
|
|||||||
B
|
Power supply
|
INTERIOR 10 A fuse
|
Under any condition
|
B+
|
• INTERIOR 10 A fuse
• Battery
• Related wiring harness
|
|||
C
|
Request switch signal
(LF)
|
Request switch (LF)
|
When driver's side request switch is pressed
|
1.0 or less
|
• Front outer handle (driver's side)
• Related wiring harness
|
|||
When driver's side request switch is not pressed
|
5.0
|
|||||||
D
|
—
|
—
|
—
|
—
|
—
|
|||
E
|
Request switch signal
(liftgate)
|
Request switch (Liftgate)
|
When liftgate request switch is pressed
|
1.0 or less
|
• Request switch (Liftgate)
• Related wiring harness
|
|||
When liftgate request switch is not pressed
|
5.0
|
|||||||
F
|
—
|
—
|
—
|
—
|
—
|
|||
G
|
Start stop unit signal
|
Start stop unit
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
H
|
Keyless beeper power supply
|
Keyless beeper
|
When lock button on remote transmitter is pressed
|
Wave pattern (See Inspection Using an Oscilloscope (Reference).)
|
• Related wiring harness
• Keyless beeper
|
|||
Except above
|
1.0 or less
|
|||||||
I
|
Start stop unit signal
|
Start stop unit
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
J
|
Keyless beeper ground
|
Keyless beeper
|
Under any condition
|
1.0 or less
|
• Related wiring harness
• Keyless beeper
|
|||
K
|
Keyless antenna (interior, front)
|
Keyless antenna (interior, front)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
L
|
GROUND
|
Body ground
|
Under any condition
|
1.0 or less
|
Body ground
|
|||
M
|
Keyless antenna (interior, front)
|
Keyless antenna (interior, front)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
N
|
—
|
—
|
—
|
—
|
—
|
|||
O
|
Keyless antenna (exterior, LF)
|
Keyless antenna (exterior, LF)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
P
|
Keyless antenna (interior, center)
|
Keyless antenna (interior, center)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
Q
|
Keyless antenna (exterior, LF)
|
Keyless antenna (exterior, LF)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
R
|
Keyless antenna (interior, center)
|
Keyless antenna (interior, center)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
S
|
Keyless antenna (exterior, RF)
|
Keyless antenna (exterior, RF)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
T
|
Keyless antenna (interior, rear)
|
Keyless antenna (interior, rear)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
U
|
Keyless antenna (exterior, RF)
|
Keyless antenna (exterior, RF)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
V
|
Keyless antenna (interior, rear)
|
Keyless antenna (interior, rear)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
W
|
Keyless antenna (exterior, rear)
|
Keyless antenna (exterior, rear)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
|||||
X
|
Keyless antenna (exterior, rear)
|
Keyless antenna (exterior, rear)
|
Because this terminal is for communication, integrity determination using terminal voltage inspection is not possible.
|
Inspection Using an Oscilloscope (Reference)
|