Nissan Qashqai (2007-2010). Manual — part 1371

DIAGNOSIS AND REPAIR WORKFLOW

EXL-189

< BASIC INSPECTION >

[HALOGEN TYPE]

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>> GO TO 2.

2.

SYMPTOM CHECK

Check the symptom from the customer's information.

>> GO TO 3.

3.

BASIC INSPECTION

Check the operation of each part. Check that any symptom occurs other than the interviewed symptom.

>> GO TO 4.

4.

SELF-DIAGNOSIS WITH CONSULT-III

Perform the self-diagnosis with CONSULT-III. Check that any DTC is detected.
Is any DTC detected?

YES

>> GO TO 5.

NO

>> GO TO 6.

5.

TROUBLE DIAGNOSIS BY DTC

Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.

>> GO TO 9.

6.

FAIL-SAFE ACTIVATION CHECK

Check that the symptom is applied to the fail-safe activation.
Does the fail-safe activate?

YES

>> GO TO 7.

NO

>> GO TO 8.

7.

SYSTEM DIAGNOSIS

Perform the system diagnosis for the system that the fail-safe activates. Specify the malfunctioning part.

>> GO TO 9.

8.

SYMPTOM DIAGNOSIS

Perform the symptom diagnosis. Specify the malfunctioning part.

>> GO TO 9.

9.

MALFUNCTION PART REPAIR

Repair or replace the malfunctioning part.

>> GO TO 10.

10.

REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)

Perform the self-diagnosis with CONSULT-III. Check that any DTC is not detected. Erase DTC if DTC is
detected before the repair. Check that DTC is not detected again.

Is any DTC detected?

YES

>> GO TO 5.

NO

>> GO TO 11.

11.

REPAIR CHECK (OPERATION CHECK)

Check the operation of each part.

Does it operate normally?

YES

>> INSPECTION END

EXL-190

< BASIC INSPECTION >

[HALOGEN TYPE]

DIAGNOSIS AND REPAIR WORKFLOW

NO

>> GO TO 3.

HEADLAMP SYSTEM

EXL-191

< FUNCTION DIAGNOSIS >

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FUNCTION DIAGNOSIS

HEADLAMP SYSTEM

System Diagram

INFOID:0000000001026113

System Description

INFOID:0000000001089299

OUTLINE

Headlamp is controlled by combination switch reading function and headlamp control function of BCM, and
relay control function of IPDM E/R.

HEADLAMP (LO) OPERATION

• BCM detects the combination switch condition with the combination switch reading function.
• BCM transmits the low beam request signal to IPDM E/R with CAN communication according to the head-

lamp (LO) ON condition.

Headlamp (LO) ON condition

- Lighting switch 2ND
- Lighting switch AUTO, and the auto light function ON judgment (With auto light system)
- Daytime running light ON judgment (With daytime running light system)
• IPDM E/R turns the integrated headlamp low relay ON, and turns the headlamp ON according to the low

beam request signal.

HEADLAMP (HI) OPERATION

• BCM transmits the high beam request signal to IPDM E/R and the combination meter with CAN communica-

tion according to the headlamp (HI) ON condition.

Headlamp (HI) ON condition

- Lighting switch HI with the lighting switch 2ND or AUTO (auto light function ON judgment)
- Lighting switch PASS
• Combination meter turns the high beam indicator lamp ON according to the high beam request signal.
• IPDM E/R turns the integrated headlamp high relay ON, and turns the headlamp ON according to the high

beam request signal.

FOLLOW ME HOME FUNCTION

When the driver is moving to the house entrance from the own vehicle, headlamp is kept still ON by the follow
me home function of BCM.
• When BCM detects the input of lighting switch PASS with all of following condition, it transmits the low beam

request signal for a period of time to IPDM E/R through CAN communication.

• IPDM E/R turns the integrated headlamp low relay ON, and turns the headlamp ON according to the low

beam request signal.

- Ignition switch OFF
- Lighting switch OFF or AUTO
NOTE:

JPLIA0167GB

EXL-192

< FUNCTION DIAGNOSIS >

[HALOGEN TYPE]

HEADLAMP SYSTEM

Follow me home function activating time can be set by CONSULT-III. Refer to

EXL-27, "HEADLAMP : CON-

SULT-III Function (BCM - HEAD LAMP)"

.

Component Parts Location

INFOID:0000000001060451

Component Description

INFOID:0000000001026116

1.

Headlamp

2.

Combination switch

3.

BCM

4.

IPDM E/R

5.

High beam indicator lamp

A.

Over the glove box

B.

Engine room (left side)

C.

On the combination meter

JPLIA0190ZZ

Part

Description

BCM

• Judges each switch condition by the combination switch reading function.
• Judges that the headlamp is turned ON according to the vehicle condition.
- Requests the headlamp relay (HI/LO) ON to IPDM E/R (with CAN communication).
- Requests the high beam indicator lamp ON to the combination meter (with CAN

communication).

IPDM E/R

Controls the integrated relay, and supplies voltage to the load according to the request
from BCM (with CAN communication).

Combination switch
(Lighting & turn signal switch)

Refer to

BCS-9, "System Diagram"

.

Combination meter
(High beam indicator lamp)

Turns the high beam indicator lamp ON according to the request from BCM (with CAN
communication).