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LT-38
DAYTIME LIGHT SYSTEM
Revision: 2004 November 2004 FX35/FX45
DAYTIME LIGHT SYSTEMPFP:284B2
Component Parts and Harness Connector LocationAKS007MZ
System DescriptionAKS007N0
DAYTIME LIGHT SYSTEM turns on Daytime Light Lamps while driving. Day Light Lamps are not turned on if
engine is activated with Parking Brake on. Take off Parking Brake to turn on Daytime Light Lamps. The lamps
turn off when Lighting Switch is in the 2ND position or AUTO position (Head Lamp is “ON”) and when Lighting
Switch is in the PASSING position. (Daytime Light Lamps are not turned off only by Parking Brake itself.)
An parking brake signal and engine run or stop signal are sent to BCM (body control module) by CAN commu-
nication line, and control daytime light system.
OUTLINE
Power is supplied at all times
through 10A fuse [No. 19, located in fuse block (J/B)]
to combination meter terminal 8
through 15A fuse [No. 22, located in fuse block (J/B)]
to BCM (body control module) terminal 42
through 50A fusible link (letter M, located in fuse and fusible link block)
to BCM (body control module) terminal 55
through 10A fuse [No. 36, located in fuse and fusible link block]
to daytime light relay terminals 2 and 5.
When the ignition switch is in ON or START position, power is supplied
through 10A fuse [No. 14, located in fuse block (J/B)]
to combination meter terminal 7
through 15A fuse [No. 1, located in fuse block (J/B)]
to BCM (body control module) terminal 38.
Ground is supplied
to combination meter terminals 5, 6 and 15
PKIA6522E
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DAYTIME LIGHT SYSTEM
LT-39
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Revision: 2004 November 2004 FX35/FX45
through grounds M35, M45 and M85
to BCM (body control module) terminals 49 and 52
through grounds M35, M45 and M85.
DAYTIME LIGHT OPERATION
With the engine running, the lighting switch in the OFF or 1ST position and parking brake released, power is
supplied
through daytime light relay terminal 1
to combination meter terminal 10
through daytime light relay terminal 3
to clearance lamp RH and LH terminal 1.
Ground is supplied
to combination meter terminals 5, 6 and 15
through grounds M35, M45 and M85
to clearance lamp RH and LH terminal 3
through grounds E21, E50 and E51.
With power and grounds supplied, the front fog lamps illuminate.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
AUTO LIGHT OPERATION
For auto light operation, refer to LT- 5 4 , "System Description" in “AUTO LIGHT SYSTEM”.
CAN Communication System DescriptionAKS007N1
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitAKS0080T
Refer to LAN-6, "CAN Communication Unit" .
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LT-40
DAYTIME LIGHT SYSTEM
Revision: 2004 November 2004 FX35/FX45
SchematicAKS007N3
TKWM0606E
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DAYTIME LIGHT SYSTEM
LT-41
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LT
Revision: 2004 November 2004 FX35/FX45
Wiring Diagram — DTRL —AKS007N4
TKWM0607E
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LT-42
DAYTIME LIGHT SYSTEM
Revision: 2004 November 2004 FX35/FX45
TKWM0816E
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DAYTIME LIGHT SYSTEM
LT-43
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Revision: 2004 November 2004 FX35/FX45
TKWM0609E
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LT-44
DAYTIME LIGHT SYSTEM
Revision: 2004 November 2004 FX35/FX45
TKWM0610E
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DAYTIME LIGHT SYSTEM
LT-45
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Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Values for BCMAKS007XM
Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2 GY Combination switch input 5 ONLighting, turn, wiper OFF
Wiper dial position 4
3 L/B Combination switch input 4 ONLighting, turn, wiper OFF
Wiper dial position 4
4 PU/W Combination switch input 3 ONLighting, turn, wiper OFF
Wiper dial position 4
5 Y/R Combination switch input 2
ONLighting, turn, wiper OFF
Wiper dial position 4
6 SB Combination switch input 1
32 GY/R Combination switch output 5 ONLighting, turn, wiper OFF
Wiper dial position 4
33 G Combination switch output 4 ONLighting, turn, wiper OFF
Wiper dial position 4
34 W/B Combination switch output 3 ONLighting, turn, wiper OFF
Wiper dial position 4
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
SKIA5291E