Nissan GT-R (2007-2014 year). EXHAUST SYSTEM / EXTERIOR LIGHTING SYSTEM. Service Manual

EXL-14

< SYSTEM DESCRIPTION >

[XENON TYPE]

BACK-UP LAMP SYSTEM

Component Parts Location

INFOID:0000000009160305

Component Description

INFOID:0000000009160306

Control device

Back-up lamp

TCM relay

Back-up lamp relay

TCM

Inside of rear wheel house finisher
(LH)

Inside of trunk front finisher

NNLIA0021ZZ

Part

Description

TCM

• Detects the control device condition.
• Judges the back-up lamp relay ON/OFF by shift lever position status.

Revision: 2012 November

2014 GT-R

EXTERIOR LAMP BATTERY SAVER SYSTEM

EXL-15

< SYSTEM DESCRIPTION >

[XENON TYPE]

EXL

EXTERIOR LAMP BATTERY SAVER SYSTEM

System Diagram

INFOID:0000000009160307

System Description

INFOID:0000000009160308

OUTLINE

• Exterior lamp battery saver system is controlled by each function of BCM and IPDM E/R.

Control by BCM

- Combination switch reading function
- Headlamp control function
- Exterior lamp battery saver function

Control by IPDM E/R

- Relay control function
• BCM turns the exterior lamp* OFF after a period of time to prevent the battery from over-discharge when the

ignition switch is turned OFF with the exterior lamp ON.

*: Headlamp (LO/HI), parking lamp, tail lamp, side marker lamp and license plate lamp.
NOTE:
When the lighting switch is turned AUTO, the exterior lamp battery saver switches to the auto light system.
Refer to

EXL-5, "System Description"

EXTERIOR LAMP BATTERY SAVER ACTIVATION

BCM activates the timer and turns the exterior lamp OFF 5 minutes after the ignition switch is turned from ON

→

OFF with the exterior lamps ON.

NOTE:
• Headlamp control function turns the exterior lamps ON normally when the ignition switch is turned ACC or

the engine started (both before and after the exterior lamp battery saver is turned OFF).

• The timer starts at the time that the lighting switch is turned from OFF

→

1ST or 2ND with the exterior lamp

OFF.

JPLIA1205GB

Revision: 2012 November

2014 GT-R

EXL-16

< SYSTEM DESCRIPTION >

[XENON TYPE]

EXTERIOR LAMP BATTERY SAVER SYSTEM

Component Parts Location

INFOID:0000000009160309

Component Description

INFOID:0000000009160310

Combination switch

Combination meter

BCM

IPDM E/R

Dash side lower (passenger side)

Engine room dash panel (RH)

JPLIA1166ZZ

Part

Description

BCM

• Detects each switch condition by the combination switch reading function.
• Judges the exterior lamp OFF according to the vehicle condition.
- Requests each relay OFF to IPDM E/R (with CAN communication).

IPDM E/R

Controls the integrated relay according to the request from BCM (with CAN communi-
cation).

Combination switch
(Lighting & turn signal switch)

Refer to

BCS-5, "System Diagram"

Revision: 2012 November

2014 GT-R

DIAGNOSIS SYSTEM (IPDM E/R)

EXL-17

< SYSTEM DESCRIPTION >

[XENON TYPE]

EXL

DIAGNOSIS SYSTEM (IPDM E/R)

Diagnosis Description

INFOID:0000000009160314

AUTO ACTIVE TEST

Description

In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.
• Front wiper (LO, HI)
• Parking lamps
• License plate lamps
• Side marker lamps
• Tail lamps
• Headlamps (LO, HI)
• A/C compressor (magnet clutch)
• Cooling fan (cooling fan control module)

Operation Procedure

Close the hood and lift the wiper arms from the windshield. (Prevent windshield damage due to wiper
operation)
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.

Turn the ignition switch OFF.

Turn the ignition switch ON, and within 20 seconds, press the driver door switch 10 times. Then turn the
ignition switch OFF.

CAUTION:

Close passenger door.

Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test
starts.

After a series of the following operations is repeated 3 times, auto active test is completed.

NOTE:
When auto active test mode has to be cancelled halfway through test, turn the ignition switch OFF.

CAUTION:

• If auto active test mode cannot be actuated, check door switch system. Refer to

DLK-44,

"Component Function Check"

• Do not start the engine.

Inspection in Auto Active Test Mode

When auto active test mode is actuated, the following 5 steps are repeated 3 times.

*: Outputs duty ratio of 50% for 5 seconds

→

duty ratio of 100% for 5 seconds on the cooling fan control module.

Operation
sequence

Inspection location

Operation

Front wiper

LO for 5 seconds

→

HI for 5 seconds

• Parking lamps
• License plate lamps
• Side marker lamps
• Tail lamps

10 seconds

Headlamps

⇔

HI 5 times

A/C compressor (magnet clutch)

⇔

OFF 5 times

Cooling fan

MID for 5 seconds

→

HI for 5 seconds

Revision: 2012 November

2014 GT-R

EXL-18

< SYSTEM DESCRIPTION >

[XENON TYPE]

DIAGNOSIS SYSTEM (IPDM E/R)

Concept of auto active test

• IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communica-

tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto
active test starts successfully.

• The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.

Diagnosis chart in auto active test mode

NNMIA0051GB

Symptom

Inspection contents

Possible cause

Any of the following components do not operate

• Parking lamps
• License plate lamps
• Side marker lamps
• Tail lamps
• Headlamp (HI, LO)
• Front wiper (HI, LO)

Perform auto active test.
Does the applicable system
operate?

YES

BCM signal input circuit

• Lamp or motor
• Lamp or motor ground circuit
• Harness or connector be-

tween IPDM E/R and appli-
cable system

• IPDM E/R

A/C compressor does not operate

Perform auto active test.
Does the magnet clutch oper-
ate?

YES

• A/C amp. signal input circuit
• CAN communication signal

between A/C amp. and ECM

• CAN communication signal

between ECM and IPDM E/R

• Magnet clutch
• Harness or connector be-

tween IPDM E/R and magnet
clutch

• IPDM E/R

Cooling fan does not operate

Perform auto active test.
Does the cooling fan operate?

YES

• ECM signal input circuit
• CAN communication signal

between ECM and IPDM E/R

• Cooling fan
• Harness or connector be-

tween cooling fan and cool-
ing fan control module

• Cooling fan control module
• Harness or connector be-

tween IPDM E/R and cooling
fan control module

• Cooling fan relay
• Harness or connector be-

tween IPDM E/R and cooling
fan relay

• IPDM E/R

Revision: 2012 November

2014 GT-R

POWER SUPPLY AND GROUND CIRCUIT

EXL-19

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

EXL

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

BCM (BODY CONTROL MODULE)

BCM (BODY CONTROL MODULE) : Diagnosis Procedure

INFOID:0000000009160316

CHECK FUSE AND FUSIBLE LINK

Check that the following fuse and fusible link are not blown.

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

>> GO TO 2.

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.

Disconnect BCM connectors.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

>> Repair harness or connector.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

>> Repair harness or connector.

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure

INFOID:0000000009160317

CHECK FUSES AND FUSIBLE LINK

Check that the following IPDM E/R fuses or fusible links are not blown.

Signal name

Fuse and fusible link No.

Battery power supply

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

M118

Battery voltage

M119

BCM

Ground

Continuity

Connector

Terminal

M119

Existed

Revision: 2012 November

2014 GT-R

EXL-20

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

POWER SUPPLY AND GROUND CIRCUIT

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

>> GO TO 2.

CHECK POWER SUPPLY CIRCUIT

Turn the ignition switch OFF.

Disconnect IPDM E/R connector.

Check voltage between the IPDM E/R harness connector and the ground.

Is the measurement value normal?

YES

>> GO TO 3.

>> Repair the harness or connector.

CHECK GROUND CIRCUIT

Check continuity between the IPDM E/R harness connectors and the ground.

Does continuity exist?

YES

>> INSPECTION END

>> Repair the harness or connector.

Signal name

Fuses and fusible link No.

Battery power supply

Terminals

Voltage

(Approx.)

(+)

(

−

)

IPDM E/R

Connector

Terminal

Ground

Battery voltage

IPDM E/R

Ground

Continuity

Connector

Terminal

Existed

Revision: 2012 November

2014 GT-R

XENON HEADLAMP

EXL-21

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

EXL

XENON HEADLAMP

Description

INFOID:0000000009160323

OUTLINE

• The lamp light source is by the arch discharge by applying high voltage into the xenon gas-filled bulb instead

of the halogen bulb filament.

• Sight becomes more natural and brighter because the amount of light are gained adequately and the color of

light is sunshine-like white.

• The xenon bulb drops the amount of light, repeats blinking, and illuminates in red if the bulb reaches the ser-

vice life.

ILLUMINATION PRINCIPLE

Discharging starts in high voltage pulse between bulb elec-
trodes.

Xenon gas is activated by current between electrodes. Pale light
is emitted.

The luminous tube (bulb) temperature elevates. Evaporated
halide is activated by discharge. The color of light changes into
white.

NOTE:
• Brightness and the color of light may change slightly immediately

after the headlamp turned ON until the xenon bulb becomes sta-
ble. This is not malfunction.

• Illumination time lag may occur between right and left. This is not

malfunction.

PRECAUTIONS FOR TROUBLE DIAGNOSIS

Representative malfunction examples are; “Light does not turn ON”, “Light blinks”, and “Brightness is inade-
quate”. The cause often be the xenon bulb. Such malfunctions, however, are occurred occasionally by HID
control unit malfunction or lamp case malfunction. Specify the malfunctioning part with diagnosis procedure.

WARNING:

• Never touch the harness, HID control unit, the inside and metal part of lamp when turning the head-

lamp ON or operating the light switch.

• Never work with wet hands.

CAUTION:

• Never perform HID control unit circuit diagnosis with a circuit tester or an equivalent.
• Temporarily install the headlamp on the vehicle. Connect the battery to the connector (vehicle side)

when checking ON/OFF status.

• Disconnect the battery negative terminal before disconnecting the lamp socket connector or the har-

ness connector.

• Check for fusing of the fusible link(s), open around connector, short, disconnection if the symptom

is caused by electric error.

• When water infiltrated by the damage of the headlamp housing in the lamp inside, and then water is

stuck in the HID control unit connector part, HID control unit detect a power supply short circuit and
stop the headlamp function. therefore inspect outside of headlamp for cracks, serious damage or
install the resin cap and the bulb socket securely.

NOTE:
• Turn the switch OFF once before turning ON, if the ON/OFF is inoperative.
• The xenon bulb drops the amount of light, repeats blinking, and illuminates in red if the bulb reaches the ser-

vice life.

Diagnosis Procedure

INFOID:0000000009160324

CHECK XENON BULB

Install the normal bulb to the applicable headlamp. Check that the xenon bulb is turned ON.
Is the headlamp turned ON?

YES

>> Replace the xenon bulb.

>> GO TO 2.

JPLIA0421GB

Revision: 2012 November

2014 GT-R

EXL-22

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

XENON HEADLAMP

CHECK INSIDE OF XENON HEADLAMP HOUSING

Check the inside of applicable headlamp (upper surface of HID control unit) for exist the water or trace of the
water intrusion.

Are there trace of the water intrusion in the headlamp?

YES

>> GO TO 3.

>> GO TO 4.

CHECK OUTSIDE OF XENON HEADLAMP HOUSING

Check the outside of applicable headlamp for cracks, serious damage or install the resin cap and the bulb
socket securely.

Is the outside of headlamp housing abnormality?

YES

>> Replace the front combination lamp.

>> Dry water fully and then check that the lighting switch is turned ON. Refer to

EXL-48, "Inspection

After Installation (HID Control Unit)"

CHECK HID CONTROL UNIT

Install the normal HID control unit to the applicable headlamp. Check that the lamp is turned ON.

Is the headlamp turned ON?

YES

>> Replace HID control unit.

>> GO TO 5.

CHECK XENON HEADLAMP HOUSING ASSEMBLY

Install the normal xenon headlamp housing assembly to the applicable headlamp. Check that the xenon head-
lamp is turned ON.

Is the headlamp turned ON?

YES

>> Replace the front combination lamp. (Xenon headlamp housing voltage converter malfunctions.)

>> Xenon headlamp is normal. Check the headlamp control system.

Revision: 2012 November

2014 GT-R

HAZARD SWITCH

EXL-23

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

EXL

HAZARD SWITCH

Description

INFOID:0000000009160334

Hazard switch is integrated in the set-up switch. Hazard switch inputs the signals to BCM when pressing the
switch.

Diagnosis Procedure

INFOID:0000000009160336

CHECK HAZARD SWITCH SIGNAL INPUT

With operating the hazard switch, check the voltage between the BCM harness connector and the ground.

Is the measurement value normal?

YES

>> Replace the BCM.

>> GO TO 2.

CHECK HAZARD SWITCH SIGNAL OPEN CIRCUIT

Turn the ignition switch OFF.

Disconnect the set-up switch connector and BCM connector.

Check continuity between the set-up switch harness connector and the BCM harness connector.

Does continuity exist?

YES

>> GO TO 3.

>> Repair the harnesses or connectors.

CHECK HAZARD SWITCH SIGNAL SHORT CIRCUIT

Check continuity between the set-up switch harness connector and the ground.

Does continuity exist?

YES

>> Repair the harnesses or connectors.

>> GO TO 4.

CHECK HAZARD SWITCH GROUND OPEN CIRCUIT

Check continuity between the set-up switch harness connector and the ground.

Terminals

Condition

Voltage (Approx.)

(+)

(

−

)

BCM

Ground

Hazard switch

Connector

Terminal

M122

110

While pressing
the switch

0 V

While not press-
ing the switch

JPMIA0012GB

Set-up switch

BCM

Continuity

Connector

Terminal

Connector

Terminal

M73

M122

110

Existed

Set-up switch

Ground

Continuity

Connector

Terminal

M73

Not existed

Revision: 2012 November

2014 GT-R

REAR SIDE MARKER LAMP CIRCUIT

EXL-25

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

EXL

REAR SIDE MARKER LAMP CIRCUIT

Diagnosis Procedure

INFOID:0000000009160340

CHECK REAR SIDE MARKER LAMP OPEN CIRCUIT

Turn the ignition switch OFF.

Disconnect the rear combination lamp connector and the rear side marker lamp connector.

Check continuity between the rear combination lamp harness connector and the rear side marker lamp
harness connector.

Does continuity exist?

YES

>> GO TO 2.

>> Repair the harnesses or connectors.

CHECK REAR SIDE MARKER LAMP GROUND OPEN CIRCUIT

Check continuity between the rear combination lamp harness connector and the rear side marker lamp.

Does continuity exist?

YES

>> Replace the rear side marker lamp assembly.

>> Repair the harnesses or connectors.

Rear combination lamp

Rear side marker lamp

Continuity

Connector

Terminal

Connector

Terminal

B240

B372

Existed

B57

B371

Rear combination lamp

Rear side marker lamp

Continuity

Connector

Terminal

Connector

Terminal

B240

B372

Existed

B57

B371

Revision: 2012 November

2014 GT-R

EXL-26

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

BACK-UP LAMP CIRCUIT

BACK-UP LAMP CIRCUIT

Component Inspection

INFOID:0000000009160343

CHECK BACK-UP LAMP RELAY EXCITATION COIL SIDE

Turn the ignition switch OFF.

Remove the back-up lamp relay.

Check continuity of the back-up lamp relay excitation coil side.

Does continuity exist?

YES

>> GO TO 2.

>> Replace the back-up lamp relay.

CHECK BACK-UP LAMP RELAY CONTACT SIDE

Apply battery voltage to the back-up lamp relay between terminals 1 and 2.

Check continuity of the back-up lamp relay contact side.

Is the measurement value normal?

YES

>> Back-up lamp relay is normal.

>> Replace the back-up lamp relay.

Back-up lamp relay

Continuity

Terminal

Existed

Back-up lamp relay

Condition

Continuity

Terminal

Voltage

Apply

Existed

Not apply

Not existed

Revision: 2012 November

2014 GT-R

LICENSE PLATE LAMP CIRCUIT

EXL-27

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

EXL

LICENSE PLATE LAMP CIRCUIT

Diagnosis Procedure

INFOID:0000000009160345

CHECK LICENSE PLATE LAMP BULB

Check the applicable lamp bulb.
Is the bulb normal?

YES

>> GO TO 2.

>> Replace the bulb.

CHECK LICENSE PLATE LAMP OPEN CIRCUIT

Turn the ignition switch OFF.

Disconnect IPDM E/R connector and the license plate lamp connector.

Check continuity between the IPDM E/R harness connector and the license plate lamp harness connec-
tor.

Does continuity exist?

YES

>> GO TO 3.

>> Repair the harnesses or connectors.

CHECK LICENSE PLATE LAMP GROUND OPEN CIRCUIT

Check continuity between the license plate lamp harness connector and the ground.

Does continuity exist?

YES

>> Replace the license plate lamp.

>> Repair the harnesses or connectors.

IPDM E/R

License plate lamp

Continuity

Connector

Terminal

Connector

Terminal

B154

Existed

B152

License plate lamp

Ground

Continuity

Connector

Terminal

B154

Existed

B152

Revision: 2012 November

2014 GT-R

EXL-28

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

OPTICAL SENSOR

OPTICAL SENSOR

Description

INFOID:0000000009160346

Optical sensor converts the outside brightness (lux) to voltage and transmits the optical sensor signal to BCM.

Diagnosis Procedure

INFOID:0000000009160348

CHECK OPTICAL SENSOR POWER SUPPLY INPUT

Turn the ignition switch ON.

Turn the lighting switch AUTO.

Check the voltage between the optical sensor harness connector and the ground.

Is the measurement value normal?

YES

>> GO TO 2.

>> GO TO 4.

CHECK OPTICAL SENSOR GROUND INPUT

Check the voltage between the optical sensor harness connector and the ground.

Is the measurement value normal?

YES

>> GO TO 3.

>> GO TO 6.

CHECK OPTICAL SENSOR SIGNAL OUTPUT

With illuminating the optical sensor, check the voltage between the optical sensor harness connector and the
ground.

*: Illuminate the optical sensor. The value may be less than the standard if brightness is weak.

Is the measurement value normal?

YES

>> GO TO 7.

>> Replace the optical sensor.

CHECK OPTICAL SENSOR OPEN CIRCUIT

Turn the ignition switch OFF.

Terminals

Voltage

(Approx.)

(+)

(

−

)

Optical sensor

Ground

Connector

Terminal

M97

5 V

Terminals

Voltage

(Approx.)

(+)

(

−

)

Optical sensor

Ground

Connector

Terminal

M97

0 V

Terminals

Condition

Voltage

(Approx.)

(+)

(

−

)

Optical sensor

Ground

Optical sen-

sor

Connector

Terminal

M97

When illumi-
nating

3.1 V or
more *

When shut-
ting off light

0.6 V or less

Revision: 2012 November

2014 GT-R

OPTICAL SENSOR

EXL-29

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

EXL

Disconnect the optical sensor connector and BCM connector.

Check continuity between the optical sensor harness connector and the BCM harness connector.

Does continuity exist?

YES

>> GO TO 5.

>> Repair the harnesses or connectors.

CHECK OPTICAL SENSOR SHORT CIRCUIT

Check the continuity between the optical sensor harness connector and the ground.

Does continuity exist?

YES

>> Repair the harnesses or connectors.

>> Replace BCM.

CHECK OPTICAL SENSOR GROUND OPEN CIRCUIT

Turn the ignition switch OFF.

Disconnect the optical sensor connector and BCM connector.

Check continuity between the optical sensor harness connector and the BCM harness connector.

Does continuity exist?

YES

>> Replace BCM.

>> Repair the harnesses or connectors.

CHECK OPTICAL SENSOR SIGNAL OPEN CIRCUIT

Turn the ignition switch OFF.

Disconnect the optical sensor connector and BCM connector.

Check continuity between the optical sensor harness connector and the BCM harness connector.

Does continuity exist?

YES

>> GO TO 8.

>> Repair the harnesses or connectors.

CHECK OPTICAL SENSOR SHORT CIRCUIT

Check the continuity between the optical sensor harness connector and the ground.

Does continuity exist?

YES

>> Repair the harnesses or connectors.

Optical sensor

BCM

Continuity

Connector

Terminal

Connector

Terminal

M97

M123

138

Existed

Optical sensor

Ground

Continuity

Connector

Terminal

M97

Not existed

Optical sensor

BCM

Continuity

Connector

Terminal

Connector

Terminal

M97

M123

137

Existed

Optical sensor

BCM

Continuity

Connector

Terminal

Connector

Terminal

M97

M123

113

Existed

Optical sensor

Ground

Continuity

Connector

Terminal

M97

Not existed

Revision: 2012 November

2014 GT-R

Nissan GT-R (2007-2014 year). EXHAUST SYSTEM / EXTERIOR LIGHTING SYSTEM. Service Manual - part 2