HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
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to BCM terminal 42,
through 10A fuse [No. 71, located in IPDM E/R]
to CPU located in IPDM E/R,
through 10A fuse [No.19, located in fuse block (J/B)]
to combination meter terminal 24,
through 10A fuse [No.33, located in the fuse, fusible link and relay box]
to daytime light relay terminals 1 and 3.
With ignition switch in ON or START position, power is supplied
to CPU located in IPDM E/R,
through 10A fuse [No. 1, located in fuse block (J/B)]
to BCM terminal 38,
through 10A fuse [No.14, located in fuse block (J/B)]
to combination meter terminal 23.
With ignition switch in ACC or ON position, power is supplied
through 10A fuse [No. 6, located in fuse block (J/B)]
to BCM terminal 11.
Ground is supplied
to IPDM E/R terminals 38 and 60
through grounds E17, E43 and B102 (with VDC system, navigation system or telephone)
through grounds E17, E43 and F152 (without VDC system, navigation system and telephone),
to BCM terminal 52
through grounds M30 and M66,
to combination meter terminals 10, 11 and 12
through grounds M30 and M66.
HEADLAMP OPERATION
Low Beam Operation
With the lighting switch in 2ND position, the BCM receives input signal requesting the headlamps to illuminate.
This input signal is communicated to the IPDM E/R through CAN communication. The CPU located in the
IPDM E/R controls the headlamp low relay turned ON, which when energized, supplies power,
through 15A fuse [No. 76, located in IPDM E/R]
through IPDM E/R terminal 20
to front combination lamp RH terminal 7,
through 15A fuse [No. 86, located in IPDM E/R]
through IPDM E/R terminal 30
to front combination lamp LH terminal 7.
Ground is supplied
to front combination lamp RH terminal 4, and
to front combination lamp LH terminal 4
through grounds E17, E43 and B102 (with VDC system, navigation system or telephone)
through grounds E17, E43 and F152 (without VDC system, navigation system and telephone).
With power and ground supplied, headlamp bulbs illuminate.
High Beam Operation /Flash-to-Pass Operation
With the lighting switch in 2ND position and placed in HIGH or PASS position, the BCM receives input signal
requesting headlamp high beams to illuminate. High beam request signal and low beam request signal is com-
municated to the IPDM E/R through CAN communication. The CPU located in the IPDM E/R controls head-
lamp high relay and headlamp low relay turned ON, which when energized, supplies power,
through 15A fuse [No. 76, located in IPDM E/R]
through IPDM E/R terminal 20
to front combination lamp RH terminal 7,
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through 15A fuse [No. 86, located in IPDM E/R]
through IPDM E/R terminal 30
to front combination lamp LH terminal 7,
through 10A fuse [No.72, located in IPDM E/R]
through IPDM E/R terminal 27
to front combination lamp RH terminal 3,
through 10A fuse [No.74, located in IPDM E/R]
through IPDM E/R terminal 28
to front combination lamp LH terminal 3.
Ground is supplied
to front combination lamp RH terminal 4, and
to front combination lamp LH terminal 4
through grounds E17, E43 and B102 (with VDC system, navigation system or telephone)
through grounds E17, E43 and F152 (without VDC system, navigation system and telephone).
With the power and ground supplied, headlamp bulbs illuminate. High beam solenoids move the bulb shades
in the front combination lamps, and the bulb shades change to high beam position.
Unified meter and A/C amp. receives signal from BCM through CAN communication, and then combination
meter indicator illuminates high beam,
DAYTIME LIGHT OPERATION
Once the parking brake is turned OFF after ignition switch ON, if the lighting switch is turned OFF while engine
is running, the BCM outputs the signal requesting parking, license plate, side marker, tail lamps and headlamp
low beam to illuminate. This output signal is communicated to the IPDM E/R through CAN communication.
The CPU located in the IPDM E/R controls headlamp low relay and daytime light relay turned ON, which when
energized, supplies power,
through 15A fuse [No.76, located in the IPDM E/R]
through IPDM E/R terminal 20
to front combination lamp RH terminal 7,
through 15A fuse [No.86, located in the IPDM E/R]
through IPDM E/R terminal 30
to front combination lamp LH terminal 7,
through 10A fuse [No.33, located in the fuse, fusible link and relay box]
through daytime light relay terminal 2
to IPDM E/R terminal 55,
through daytime light relay terminal 5
to front combination lamp RH terminal 6
to front combination lamp LH terminal 6
to rear combination lamp RH terminal 2
to rear combination lamp LH terminal 2
to license plate lamp RH terminal 2
to license plate lamp LH terminal 2.
Ground is supplied
to front combination lamp RH terminal 4
to front combination lamp LH terminal 4
to front combination lamp RH terminal 8
to front combination lamp LH terminal 8
through grounds E17, E43 and B102 (with VDC system, navigation system or telephone)
through grounds E17, E43 and F152 (without VDC system, navigation system and telephone),
to rear combination lamp RH terminal 3
to rear combination lamp LH terminal 3
to license plate lamp RH terminal 1
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
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to license plate lamp LH terminal 1
through grounds B5, B6, D105 and T14 (Coupe models)
through grounds B5, B6 and T14 (Roadster models).
With power and ground supplied, the headlamp low, parking, license plate and tail lamps illuminate.
OPERATION
T: “TAIL LAMP” position
Hi: “HIGH BEAM” position
Lo: “LOW BEAM” position
P: “FLASH TO PASS” position
×: Lamp “ON”
–: Lamp “OFF”
*: Once the parking brake is turned OFF after ignition switch ON, parking, license plate, side marker, tail lamps and headlamp low are
turned ON.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-III.
INTERLOCKED OPERATION WITH REMOTE KEYLESS ENTRY SYSTEM
Refer to BL-59, "REMOTE KEYLESS ENTRY SYSTEM" .
INTERLOCKED OPERATION WITH VEHICLE SECURITY SYSTEM
Refer to BL-125, "VEHICLE SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP
Xenon type lamps are used for headlamps. Xenon bulbs do not use a filament. Instead, they produce light
when a high voltage current is passed between two tungsten electrodes through a mixture of xenon (an inert
gas) and certain other metal halides. In addition to strong lighting power, electronic control of the power supply
gives the headlamps stable quality and tone color.
Followings are some advantages of the xenon type headlamp.
The light produced by the headlamps is white color similar to sunlight that is easy to the eyes.
Light output is nearly double that of halogen headlamps, affording increased area of illumination.
Counter-reflected luminance increases and the contrast enhances on the wet road in the rain. That makes
visibility go up more than the increase of the light volume.
Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
Engine With engine stopped With engine running
Lighting switch OFF 1ST 2ND OFF 1ST 2ND
OFF Hi P T Hi P Lo Hi P OFF Hi P T Hi P Lo Hi P
Headlamp High
beams–––––×–××––×––×–××
Low
beams– –––––×––×*×*–×*×*–×––
Parking, license
plate, side marker
and tail lamps–––×–×××××*×*–××××××
Illumination – – –×–××××–––××××××
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
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Terminals and Reference Values for BCMNKS004XI
CAUTION:
Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.
Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-III. Refer to LT- 9 1 , "
DATA MONITOR" .
Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2GYCombination
switch input 5ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF Approx. 0 V
Any of the conditions below
Lighting switch 1ST
Lighting switch HIGH beam
(Operates only HIGH beam
switch)
Approx. 1.0 V
Lighting switch 2ND
Approx. 2.0 V
3L/WCombination
switch input 4ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF Approx. 0 V
Any of the conditions below
Lighting switch 2ND
Lighting switch PASSING
(Operates only PASSING switch)
Approx. 1.0 V
11 L GIgnition switch
(ACC)ACC — Battery voltage
PKIB4959J
PKIB4953J
PKIB4959J
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33 GCombination
switch output 4ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF
Approx. 7.2 V
Lighting switch 1ST (The same
result with lighting switch 2ND)
Approx. 1.2 V
34 W/LCombination
switch output 3ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF
Approx. 7.2 V
Any of the conditions below
Lighting switch 2ND
Lighting switch HI beam
(Operates only HI beam switch)
Approx. 1.2 V
35 W/GCombination
switch output 2ONLighting, turn,
wiper switch
(Wiper inter-
mittent dial
position 4)OFF
Approx. 7.2 V
Any of the conditions below
Lighting switch 2ND
Lighting switch PASSING
(Operates only PASSING switch)
Approx. 1.2 V
38 W/LIgnition switch
(ON) ON — Battery voltage Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
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Terminals and Reference Values for IPDM E/RNKS004XJ
How to Proceed With Trouble DiagnosisNKS004XK
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 3 2 , "
System Description" .
3. Perform the preliminary check. Refer to LT- 4 7 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does headlamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckNKS004XL
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
39 L CAN − H— — —
40 P CAN − L— — —
42 GYBattery power
supplyOFF — Battery voltage
52 B Ground ON — Approx. 0 V
55 RBattery power
supplyOFF — Battery voltage Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
20 R/L Headlamp low (RH) ON Lighting switch 2ND positionOFF Approx. 0 V
ON Battery voltage
27 BR Headlamp high (RH) ON Lighting switch HIGH or PASS positionOFF Approx. 0 V
ON Battery voltage
28 R/Y Headlamp high (LH) ON Lighting switch HIGH or PASS positionOFF Approx. 0 V
ON Battery voltage
30 R/W Headlamp low (LH) ON Lighting switch 2ND positionOFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN − H— — —
49 P CAN − L— — —
55 R/Y Daytime light relay signal ON Lighting switch 1ST positionOFF Approx. 0 V
ON Battery voltage
60 B Ground ON — Approx. 0 V
UNIT POWER SOURCE Fuse and fusible link No.
BCMBatteryF
18
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
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Refer to LT- 3 8 , "Wiring Diagram — DTRL —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
IPDM E/R Battery33
72
74
76
86 UNIT POWER SOURCE Fuse and fusible link No.
Terminals Ignition switch position
(+)
(-) OFF ACC ON
BCM
connectorTerminal
M9011
GroundApprox. 0 VBattery
voltageBattery
voltage
38 Approx. 0 V Approx. 0 VBattery
voltage
M9142Battery
voltageBattery
voltageBattery
voltage
55Battery
voltageBattery
voltageBattery
voltage
PKIB5197E
BCM connector Terminal
GroundContinuity
M91 52 Yes
PKIB5198E
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
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CONSULT-III Function (BCM)NKS004XM
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
WORK SUPPORT
Display Item List
DATA MONITOR
Display Item List
NOTE:
This item is displayed, but cannot be monitored.BCM diagnosis part Diagnosis mode Description
HEADLAMPWORK SUPPORT Changes the setting for each function.
DATA MONITOR Displays BCM input data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
BCMSELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
Item Description CONSULT-III Factory setting
BATTERY SAVER SETExterior lamp battery saver control mode can be changed in this mode.
Select exterior lamp battery saver control mode between two ON/OFF.ON×
OFF —
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from the ignition switch signal.
ACC ON SW “ON/OFF” Displays “ACC (ON)/OFF, Ignition OFF (OFF)” status judged from ignition switch signal.
HI BEAM SW “ON/OFF”Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from light-
ing switch signal.
HEAD LAMP SW 1 “ON/OFF”Displays status (headlamp switch 1: ON/Others: OFF) of headlamp switch 1 judged from
lighting switch signal.
HEAD LAMP SW 2 “ON/OFF”Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged from
lighting switch signal.
LIGHT SW 1 ST “ON/OFF”Displays status (lighting switch 1ST or 2ND position: ON/Others: OFF) of lighting switch
judged from lighting switch signal.
PASSING SW “ON/OFF”Displays status (flash-to-pass switch: ON/Others: OFF) of flash-to-pass switch judged from
lighting switch signal.
FR FOG SW
NOTE“ON/OFF” —
DOOR SW - DR “ON/OFF”Displays status of driver door as judged from driver door switch signal. (Door is open: ON/
Door is closed: OFF)
DOOR SW - AS “ON/OFF”Displays status of passenger door as judged from passenger door switch signal. (Door is
open: ON/Door is closed: OFF)
DOOR SW - RR
NOTE“OFF” —
DOOR SW - RL
NOTE“OFF” —
BACK DOOR SW “ON/OFF”
Displays status of back door as judged from back door switch signal. (Coupe models)
Displays status of rear trunk hood as judged from trunk lamp switch signal. (Roadster mod-
els)
TURN SIGNAL R “ON/OFF” Displays status (Turn right: ON/Others: OFF) as judged from lighting switch signal.
TURN SIGNAL L “ON/OFF” Displays status (Turn left: ON/Others: OFF) as judged from lighting switch signal.
ENGINE RUN “ON/OFF”Displays status (engine running: ON/ engine stopped: OFF) of engine judged from engine run
signal.
PKB SW “ON/OFF”Displays status (parking brake released: ON/ parking brake applied: OFF) of parking brake
switch judged from parking brake switch signal.
CARGO LAMP SW
NOTE“OFF” —