10-21-2020, 05:46 AM
sure fuse are first.
but a voltmeter finds this.
DRL fail, module
bad wiring or connectors burned.
or bad combo switch,
fuses
not lamps. those are good.
first fuses blown
the make sure the hand brake lever works (it has switch) and must work.
DRL only goes active if brake released.
see my pdf, it can show how to trace the cause.
https://fixkick.com/power-elect/DRL/95-97DLR-USA.pdf
next see if DRL box pins look burned as they love to do.. many did,
in 1997 they went to PWM modulated lamps ditching the right finder huge resistor (for dim lamps)
I do not now which version in your sport j18
lets assume is same 96 for 96, g16 to j18
headlamp dead.
that "FLASH=pass"Test you did is very wise tell me HL grounds are good, just 1 test.
as you can see low breams are dead if DLR box is dead( or inputs wrong) just one wire there. red/white pin 2 dead.
the FLASH mode hides a bad relay. pin 2 must to go ground or there will be no manual lamps.
RL1 can be called the DRL bypass relay, it directly (via combo) ground the HL and they glow if fuses not blown. (and are not blown because flash works)
pin 3 must be 0v too, or the coil on RL1 is energized. Pin3 is grounded via combo to G202.
I say RL1 bad or coil not energized, a voltmeter finds this out easy, just at RL1,
RL1: no need to keyon,
HL on.
pin 1 =12vdc
pin 2,3,4, 0vdc
pin 3 is key here, this turns on the relay.
but a voltmeter finds this.
DRL fail, module
bad wiring or connectors burned.
or bad combo switch,
fuses
not lamps. those are good.
first fuses blown
the make sure the hand brake lever works (it has switch) and must work.
DRL only goes active if brake released.
see my pdf, it can show how to trace the cause.
https://fixkick.com/power-elect/DRL/95-97DLR-USA.pdf
next see if DRL box pins look burned as they love to do.. many did,
in 1997 they went to PWM modulated lamps ditching the right finder huge resistor (for dim lamps)
I do not now which version in your sport j18
lets assume is same 96 for 96, g16 to j18
headlamp dead.
that "FLASH=pass"Test you did is very wise tell me HL grounds are good, just 1 test.
as you can see low breams are dead if DLR box is dead( or inputs wrong) just one wire there. red/white pin 2 dead.
the FLASH mode hides a bad relay. pin 2 must to go ground or there will be no manual lamps.
RL1 can be called the DRL bypass relay, it directly (via combo) ground the HL and they glow if fuses not blown. (and are not blown because flash works)
pin 3 must be 0v too, or the coil on RL1 is energized. Pin3 is grounded via combo to G202.
I say RL1 bad or coil not energized, a voltmeter finds this out easy, just at RL1,
RL1: no need to keyon,
HL on.
pin 1 =12vdc
pin 2,3,4, 0vdc
pin 3 is key here, this turns on the relay.
http://www.fixkick.com