BLIND SPOT MONITORING (BSM) CONTROL MODULE INSPECTION [Except Australian specs.]

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1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].)

2. Remove the following parts:

(1) Rear combination light (See REAR COMBINATION LIGHT REMOVAL/INSTALLATION.)

(2) Rear splash shield (See SPLASH SHIELD REMOVAL/INSTALLATION.)

(3) Rear bumper (See REAR BUMPER REMOVAL/INSTALLATION.)

3. Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].)

4. Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).

• If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s).

― If the system does not operate normally even though the inspection items are normal, replace the blind spot monitoring (BSM) control module.

Terminal Voltage Table (Reference)

Blind spot monitoring (BSM) control module (LH)

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Terminal

Signal name

Connected to

Measurement conditions

Voltage (V)

Inspection item(s)

A

—

—

—

—

—

B

—

—

—

—

—

C

—

—

—

—

—

D

MS-CAN_H

Data link connector-2

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

E

MS-CAN_L

Data link connector-2

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

F

—

—

—

—

—

G

Local CAN_H

Blind spot monitoring (BSM) control module (RH)

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

H

Ground

Body ground

Under any condition

1.0 or less

Related wiring harness

I

Power position (IG1)

IG1 relay

Ignition switched ON (engine off or on)

B+

•  C/U IG1 15A fuse

•  IG1 relay

•  Related wiring harness

Ignition switched off or ACC

1.0 or less

J

Local CAN_L

Blind spot monitoring (BSM) control module (RH)

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

Terminal	Signal name	Connected to	Measurement conditions	Voltage (V)	Inspection item(s)
A	—	—	—	—	—
B	—	—	—	—	—
C	—	—	—	—	—
D	MS-CAN_H	Data link connector-2	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
E	MS-CAN_L	Data link connector-2	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
F	—	—	—	—	—
G	Local CAN_H	Blind spot monitoring (BSM) control module (RH)	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
H	Ground	Body ground	Under any condition	1.0 or less	Related wiring harness
I	Power position (IG1)	IG1 relay	Ignition switched ON (engine off or on)	B+	• C/U IG1 15A fuse • IG1 relay • Related wiring harness
Ignition switched off or ACC	1.0 or less
J	Local CAN_L	Blind spot monitoring (BSM) control module (RH)	Because this terminal is for communication, determination using terminal voltage inspection is not possible.

Blind spot monitoring (BSM) control module (RH)

am3zzw00019670

Terminal

Signal name

Connected to

Measurement conditions

Voltage (V)

Inspection item(s)

A

—

—

—

—

—

B

—

—

—

—

—

C

—

—

—

—

—

D

Blind spot monitoring (BSM) warning light signal (RH)

Blind spot monitoring (BSM) warning light (RH)

Using the simulation function WRN_IND_R for the blind spot monitoring system, turn off the blind spot monitoring (BSM) warning light.

1.0 or less

•  Blind spot monitoring (BSM) warning light (RH)

•  Related wiring harness

Using the simulation function WRN_IND_R for the blind spot monitoring system, turn on the blind spot monitoring (BSM) warning light.

Wave pattern (See Pattern 1.)

E

Blind spot monitoring (BSM) warning light signal (LH)

Blind spot monitoring (BSM) warning light (LH)

Using the simulation function WRN_IND_L for the blind spot monitoring system, turn off the blind spot monitoring (BSM) warning light.

1.0 or less

•  Blind spot monitoring (BSM) warning light (LH)

•  Related wiring harness

Using the simulation function WRN_IND_L for the blind spot monitoring system, turn on the blind spot monitoring (BSM) warning light.

Wave pattern (See Pattern 1.)

F

—

—

—

—

—

G

Local CAN_H

Blind spot monitoring (BSM) control module (LH)

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

H

Ground

Body ground

Under any condition

1.0 or less

Related wiring harness

I

Power position (IG1)

IG relay

Ignition switched ON (engine off or on)

B+

•  C/U IG1 15A fuse

•  IG1 relay

•  Related wiring harness

Ignition switched off or ACC

1.0 or less

J

Local CAN_L

Blind spot monitoring (BSM) control module (LH)

Because this terminal is for communication, determination using terminal voltage inspection is not possible.

Terminal	Signal name	Connected to	Measurement conditions	Voltage (V)	Inspection item(s)
A	—	—	—	—	—
B	—	—	—	—	—
C	—	—	—	—	—
D	Blind spot monitoring (BSM) warning light signal (RH)	Blind spot monitoring (BSM) warning light (RH)	Using the simulation function WRN_IND_R for the blind spot monitoring system, turn off the blind spot monitoring (BSM) warning light.	1.0 or less	• Blind spot monitoring (BSM) warning light (RH) • Related wiring harness
Using the simulation function WRN_IND_R for the blind spot monitoring system, turn on the blind spot monitoring (BSM) warning light.	Wave pattern (See Pattern 1.)
E	Blind spot monitoring (BSM) warning light signal (LH)	Blind spot monitoring (BSM) warning light (LH)	Using the simulation function WRN_IND_L for the blind spot monitoring system, turn off the blind spot monitoring (BSM) warning light.	1.0 or less	• Blind spot monitoring (BSM) warning light (LH) • Related wiring harness
Using the simulation function WRN_IND_L for the blind spot monitoring system, turn on the blind spot monitoring (BSM) warning light.	Wave pattern (See Pattern 1.)
F	—	—	—	—	—
G	Local CAN_H	Blind spot monitoring (BSM) control module (LH)	Because this terminal is for communication, determination using terminal voltage inspection is not possible.
H	Ground	Body ground	Under any condition	1.0 or less	Related wiring harness
I	Power position (IG1)	IG relay	Ignition switched ON (engine off or on)	B+	• C/U IG1 15A fuse • IG1 relay • Related wiring harness
Ignition switched off or ACC	1.0 or less
J	Local CAN_L	Blind spot monitoring (BSM) control module (LH)	Because this terminal is for communication, determination using terminal voltage inspection is not possible.

Inspection Using an Oscilloscope (Reference)

Pattern 1

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• Terminal:

― Blind spot monitoring (BSM) warning light signal (RH): D (+) ↔ body ground (-)

― Blind spot monitoring (BSM) warning light signal (LH): E (+) ↔ body ground (-)

• Oscilloscope setting: 5 V/DIV (Y), 2 ms/DIV (X), DC range