Nissan Quest E52. Manual - part 299

DAS-38

< BASIC INSPECTION >

[BSW]

DIAGNOSIS AND REPAIR WORK FLOW

The customers are not professionals. Never assume that “maybe the customer means···” or “maybe the cus-
tomer mentioned this symptom”. 

>> GO TO 2.

2.

SELF-DIAGNOSIS WITH CONSULT

1.

Perform “All DTC Reading” with CONSULT. 

2.

Check if the DTC is detected on the self-diagnosis results of “SIDE RADAR LEFT/RIGHT” and/or “BSW”. 

Is any DTC detected?

YES

>> GO TO 5.

NO

>> GO TO 3.

3.

PRE-INSPECTION FOR DIAGNOSIS

Perform pre-inspection for diagnosis. Refer to 

DAS-39, "Inspection Procedure"

.

>> GO TO 4.

4.

ACTION TEST

Perform BSW system action test to check the operation status. Refer to 

DAS-40, "Description"

. 

Check if any other malfunctions occur. 

>> GO TO 6.

5.

TROUBLE DIAGNOSIS BY DTC

1.

Check the DTC in the self-diagnosis results. 

2.

Perform trouble diagnosis for the detected DTC. Refer to 

DAS-26, "DTC Index"

 (SIDE RADAR LEFT) or

DAS-28, "DTC Index"

 (SIDE RADAR RIGHT) and/or 

DAS-23, "DTC Index"

 (BSW). 

NOTE:
If “DTC: U1000” is detected, first diagnose the CAN communication system or BSW communication system. 

>> GO TO 7.

6.

SYMPTOM DIAGNOSIS

Perform the applicable diagnosis according to the diagnosis chart by symptom. Refer to 

DAS-82, "Symptom

Table"

. 

>> GO TO 7.

7.

MALFUNCTIONING PART REPAIR

Repair or replace the identified malfunctioning parts. 

>> GO TO 8.

8.

REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT)

1.

Erases self-diagnosis results. 

2.

Perform “All DTC Reading” again after repairing or replacing the specific items. 

3.

Check if any DTC is detected in self-diagnosis results of “SIDE RADAR LEFT/RIGHT” and “BSW”.

Is any DTC detected?

YES

>> GO TO 5.

NO

>> GO TO 9.

9.

REPAIR CHECK (ACTION TEST)

Perform the BSW system action test. Check that the malfunction symptom is solved or no other symptoms
occur.

Is there a malfunction symptom?

YES

>> GO TO 4.

NO

>> INSPECTION END

DAS

PRE-INSPECTION FOR DIAGNOSIS

DAS-39

< BASIC INSPECTION >

[BSW]

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PRE-INSPECTION FOR DIAGNOSIS

Inspection Procedure

INFOID:0000000009940690

1.

CHECK REAR BUMPER NEAR THE SIDE RADAR

Are rear bumper near the side radar contaminated with foreign materials? 

YES

>> Clean the rear bumper.

NO

>> GO TO 2.

2.

CHECK SIDE RADAR AND THE SIDE RADAR OUTSKIRTS

Are side radar and the side radar outskirts contaminated with foreign materials?

YES

>> Clean the side radar or side radar outskirts.

NO

>> GO TO 3.

3.

CHECK SIDE RADAR INSTALLATION CONDITION

Check side radar installation condition (installation position, properly tightened, a bent bracket).

Is it properly installed?

YES

>> INSPECTION END

NO

>> Install side radar properly.

DAS-40

< BASIC INSPECTION >

[BSW]

ACTION TEST

ACTION TEST

Description

INFOID:0000000009940691

Always perform the BSW system action test to check that the system operates normally after replacing the
side radar LH/RH, or repairing any BSW system malfunction.

WARNING:

Be careful of traffic conditions and safety around the vehicle when performing road test.

CAUTION:

Fully understand the following items well before the road test;
• Precautions: Refer to 

DAS-4, "Precaution for BSW System Service"

.

• System description: Refer to 

DAS-9, "System Description"

.

• Normal operating condition: Refer to 

DAS-83, "Description"

.

Work Procedure

INFOID:0000000009940692

WARNING:

Be careful of traffic conditions and safety around the vehicle when performing road test.

CAUTION:

Fully understand the following items well before the road test;
• Precautions: Refer to 

DAS-4, "Precaution for BSW System Service"

.

• System description: Refer to 

DAS-9, "System Description"

.

• Normal operating condition: Refer to 

DAS-83, "Description"

.

1.

BSW SYSTEM ACTION TEST

1.

Drive the vehicle.

2.

Turn BSW switch ON (BSW ON indicator is ON).

3.

Check BSW operation according to the following table.

Vehicle condition/ Driver's operation

Action

BSW ON 

indicator 

Vehicle speed

(Approx.)

[km/h (MPH)]

Turn signal 

condition

Status of ve-

hicle detec-

tion within 

detection 

area

Indication on the 

BSW indicator

Buzzer

OFF

—

—

—

OFF

OFF

ON

Less than ap-

prox. 

29 (18)

—

—

OFF

OFF

Approx. 

32 (20)

 or more

—

Vehicle is 

absent

OFF

OFF

OFF

Vehicle is 

detected

ON

OFF

ON 

(Vehicle de-

tected direc-

tion)

Before turn 

signal oper-

ates

Vehicle is 

detected

Blink

Short continuous beep

Vehicle is 

detected af-

ter turn sig-

nal operates

Blink

OFF

JSOIA0251GB

JSOIA0452GB

JSOIA0251GB

DAS

ACTION TEST

DAS-41

< BASIC INSPECTION >

[BSW]

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NOTE:
• If vehicle speed exceeds approximately 32 km/h (20MPH), BSW function operates until the vehicle

speed becomes lower than approximately 29km/h (18MPH).

• Time shown in the figure is approximate time.

>> INSPECTION END