DSC HU/CM INSPECTION

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DSC HU/CM INSPECTION

B3E041543750W02

1. Disconnect the DSC HU/CM connector.

2. Connect the negative battery cable.

3. Attach the tester lead to the DSC HU/CM wiring harness-side connector and inspect voltage, continuity, or resistance according to the standard (reference) on the table.

## Terminal Voltage Table (Reference)

Terminal | Signal name | Connected to | Measured item | Measured terminal (measurement condition) | Standard | Inspection item(s)
--- | --- | --- | --- | --- | --- | ---
A | Ground (system) | Ground point | Continuity | A-ground point | Continuity detected | • Wiring harness (A-ground point)
B | Ground (ABS motor) | Ground point | Continuity | B-ground point | Continuity detected | • Wiring harness (B-ground point)
C | - | - | - | - | - | -
D | CAN_L | DLC-2 (CAN_L) | Continuity | D-DLC-2 terminal CAN_L | Continuity detected | • D-DLC-2 terminal CAN_L
E | - | - | - | - | - | -
F | LF wheel-speed sensor (ground) | LF wheel-speed sensor | Continuity | F-LF ABS wheel-speed sensor terminal A | Continuity detected | • Wiring harness (F-LF ABS wheel-speed sensor terminal A)
G | - | - | - | - | - | -
H | CAN2_H | Combined sensor | Continuity | H-combined sensor terminal B | Continuity detected | • Wiring harness (H-combined sensor terminal B)
I | LF wheel-speed sensor (single) | LF ABS wheel-speed sensor | Continuity | I-LF ABS wheel-speed sensor terminal A | Continuity detected | • Wiring harness (I-LF ABS wheel-speed sensor terminal A)
J | - | - | - | - | - | -
K | - | - | - | - | - | -
L | - | - | - | - | - | -
M | - | - | - | - | - | -
N | - | - | - | - | - | -
O | RR wheel-speed (signal) | RR ABS wheel-speed sensor | Continuity | O-RR ABS wheel-speed sensor terminal A | Continuity detected | • Wiring harness (O-RR ABS wheel-speed sensor terminal A)
P | CAN_H | DLC-2 (CAN_H) | Continuity | P-DLC-2 terminal CAN_H | Continuity detected | • Wiring harness (P-DLC-2 terminal CAN_H)
Q | - | - | - | - | - | -
R | RR wheel-speed (ground) | RR ABS wheel-speed sensor | Continuity | R-RR ABS wheel-speed sensor terminal B | Continuity detected | • Wiring harness (R-RR ABS wheel-speed sensor terminal B)
S | - | - | - | - | - | -
T | CAN2_L | Combined sensor | Continuity | T-combined sensor terminal A | Continuity detected | • Wiring harness (T-combined sensor terminal A)
U | - | - | - | - | - | -
V | - | - | - | - | - | -
W | - | - | - | - | - | -
X | - | - | - | - | - | -
Y | - | - | - | - | - | -
Z | - | - | - | - | - | -
AA | - | - | - | - | - | -
AB | Sensor power supply | Combined sensor, steering angle sensor | Continuity | AB-combined sensor terminal D AB-steering angle sensor terminal A | Continuity detected | • Wiring harness (AB-combined sensor terminal D) • Wiring harness (AB-steering angle sensor terminal A)
AC | - | - | - | - | - | -
AD | DSC OFF switch | DSC OFF switch | Continuity | AD-DSC OFF switch | Continuity detected | • Wiring harness (AD-DSC OFF switch)
AE | Steering angle sensor (signal B) | Steering angle sensor | Continuity | AE-steering angle sensor terminal C | Continuity detected | • Wiring harness (AE-steering angle sensor terminal C)
AF | - | - | - | - | - | -
AG | LR wheel-speed (ground) | LR wheel-speed sensor | Continuity | AG-LR ABS wheel-speed sensor terminal B | Continuity detected | • Wiring harness (AG-LR ABS wheel-speed sensor terminal B)
AH | Sensor ground | Combined sensor, steering angle sensor | Continuity | AH-combined sensor terminal E AH-steering angle sensor terminal D | Continuity detected | • Wiring harness (AH-combined sensor terminal E) • Wiring harness (AH-steering angle sensor terminal D)
AI | - | - | - | - | - | -
AJ | LR wheel-speed (signal) | LR ABS wheel-speed sensor | Continuity | AJ-LR ABS wheel-speed sensor terminal A | Continuity detected | • Wiring harness (AJ-LR ABS wheel-speed sensor terminal A)
AK | Power supply (system) | Ignition switch | Voltage | The ignition switch is at the ON position. | B+ | • Wiring harness (AK-ignition switch)
The ignition switch is off. | 1 V or less | -
AL | - | - | - | - | - | -
AM | - | - | - | - | - | -
AN | Steering angle sensor (signal A) | Steering angle sensor | Continuity | AN-steering angle sensor terminal B | Continuity detected | • Wiring harness (AN-steering angle sensor terminal B)
AO | - | - | - | - | - | -
AP | RF wheel-speed (signal) | RF ABS wheel-speed sensor | Continuity | AP-RF ABS wheel-speed sensor terminal A | Continuity detected | • Wiring harness (AP-RF ABS wheel-speed sensor terminal A)
AQ | - | - | - | - | - | -
AR | - | - | - | - | - | -
AS | RF wheel-speed (ground) | RF ABS wheel-speed sensor | Continuity | AS-RF ABS wheel-speed sensor terminal B | Continuity detected | • Wiring harness (AP-RF ABS wheel-speed sensor terminal B)
AT | Power supply (ABS motor operation) | Battery | Voltage | Under any condition | B+ | • Wiring harness (AT-battery)
AU | Power supply (solenoid operation) | Battery | Voltage | Under any condition | B+ | • Wiring harness (AU-battery)