ABS HU/CM INSPECTION
id041300801000
1. Disconnect the ABS HU/CM connector. (See ABS HU/CM REMOVAL/INSTALLATION.)
2. Connect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [L8, LF].)
3. Attach the tester lead to the ABS HU/CM harness side connector, then inspect voltage, continuity or resistance according to the standard (reference value) on the table.
Standard (Reference Value)
amxzzw00000257
|
Terminal |
Signal name |
Connected to |
Measured item |
Measured terminal (measured condition) |
Standard |
Inspection item(s) |
---|---|---|---|---|---|---|
A
|
Ground
(ABS motor)
|
Ground point
|
Continuity
|
A—ground point
|
Continuity detected
|
• Wiring harness (A—ground point)
|
B
|
Power supply
(ABS motor operation)
|
Battery
|
Voltage
|
Under any condition
|
B+
|
• Wiring harness (B—battery)
|
C
|
Power supply
(solenoid)
|
Battery
|
Voltage
|
Under any condition
|
B+
|
• Wiring harness (C—battery)
|
D
|
Ground
(ABS system)
|
Ground point
|
Continuity
|
D—ground point
|
Continuity detected
|
• Wiring harness (D—ground point)
|
E
|
LF wheel-speed sensor (–)
|
LF ABS wheel-speed sensor
|
Continuity
|
E—LF ABS wheel-speed sensor connector terminal B
|
Continuity detected
|
• Wiring harness (E—LF ABS wheel-speed sensor connector terminal B)
|
F
|
LF wheel-speed sensor (+)
|
LF ABS wheel-speed sensor
|
Continuity
|
F—LF ABS wheel-speed sensor connector terminal A
|
Continuity detected
|
• Wiring harness (F—LF ABS wheel-speed sensor connector terminal A)
|
G
|
LR wheel-speed sensor (+)
|
LR ABS wheel-speed sensor
|
Continuity
|
G—LR ABS wheel-speed sensor connector terminal B
|
Continuity detected
|
• Wiring harness (G—LR ABS wheel-speed sensor connector terminal B)
|
H
|
LR wheel-speed sensor (–)
|
LR ABS wheel-speed sensor
|
Continuity
|
H—LR ABS wheel-speed sensor connector terminal A
|
Continuity detected
|
• Wiring harness (H—LR ABS wheel-speed sensor connector terminal A)
|
I
|
RR wheel-speed sensor (+)
|
RR ABS wheel-speed sensor
|
Continuity
|
I—RR ABS wheel-speed sensor connector terminal B
|
Continuity detected
|
• Wiring harness (I—RR ABS wheel-speed sensor connector terminal B)
|
J
|
Power supply
(system)
|
Ignition switch
|
Voltage
|
Ignition switch at ON position
|
B+
|
• Wiring harness (J—ignition switch)
|
Ignition switch is LOCK position.
|
1 V or less
|
|||||
K
|
—
|
—
|
—
|
—
|
—
|
—
|
L
|
RR wheel-speed sensor (–)
|
RR ABS wheel-speed sensor
|
Continuity
|
L—RR ABS wheel-speed sensor connector terminal A
|
Continuity detected
|
• Wiring harness (L—RR ABS wheel-speed sensor connector terminal A)
|
M
|
RF wheel-speed sensor (+)
|
RF ABS wheel-speed sensor
|
Continuity
|
M—RF ABS wheel-speed sensor connector terminal A
|
Continuity detected
|
• Wiring harness (M—RF ABS wheel-speed sensor connector terminal A)
|
N
|
Brake switch
|
Brake switch
|
Voltage
|
N—brake switch
(Brake pedal depressed)
|
B+
|
• Wiring harness (N—brake switch)
• Brake switch
|
N—brake switch
(Brake pedal not depressed)
|
1 V or less
|
|||||
O
|
RF wheel-speed sensor (–)
|
RF ABS wheel-speed sensor
|
Continuity
|
O—RF ABS wheel-speed sensor connector terminal B
|
Continuity detected
|
• Wiring harness (O—RF ABS wheel-speed sensor connector terminal B)
|
P
|
—
|
—
|
—
|
—
|
—
|
—
|
Q
|
—
|
—
|
—
|
—
|
—
|
—
|
R
|
—
|
—
|
—
|
—
|
—
|
—
|
S
|
—
|
—
|
—
|
—
|
—
|
—
|
T
|
—
|
—
|
—
|
—
|
—
|
—
|
U
|
—
|
—
|
—
|
—
|
—
|
—
|
V
|
—
|
—
|
—
|
—
|
—
|
—
|
W
|
—
|
—
|
—
|
—
|
—
|
—
|
X
|
—
|
—
|
—
|
—
|
—
|
—
|
Y
|
CAN_L
|
DLC-2 (CAN_L)
|
This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.
|
|||
Z
|
CAN_H
|
DLC-2 (CAN_H)
|
This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection.
|