P1574 and c1295 wont go away
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Cadillac Seville / Cadillac Eldorado Forum Discussion, P1574 and c1295 wont go away in Past Cadillac Vehicle Discussion; ...
  1. #1
    Snacky is offline Cadillac Owners Member
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    Unhappy P1574 and c1295 wont go away

    Can anyone help me with there's codes
    P1574 and c1295 i canít get rid of em

    ABS light is on
    brake light are working
    code's set to current as soon the key is turned on

    done so far:
    new light bulbs
    new stoplight switch (the one on the brake paddle)
    tested another ebtcm module

    got 12v on pin 9 on the ebtcm harness when pressing down on the brake

    its driving me nuts ive a apk (state inspection) due in a few weeks and itís a fail point over here (here is the netherlands)


    if anyone has an idea ide appreciate it very much

    Richard

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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: P1574 and c1295 wont go away

    It would help if you'd post the definitions along with the code.

  4. #3
    Snacky is offline Cadillac Owners Member
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    Re: P1574 and c1295 wont go away

    P1574 - Stoplamp Switch Circuit
    C1295 - Brake Lamp Switch Circuit Open

  5. #4
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
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    Re: P1574 and c1295 wont go away

    Most often caused by either bad bulb(s), sockets, or wiring in the rear brake lamp/tail lamp circuits. Your wiring runs in a channel in the left trunk hinge arm and there have been problems with broken/chafed wires where the harness leaves the channel and runs into the trunk near the LR wheelwell. There's also a ground connection at the LR wheelwell metal which has caused problems.

    Otherwise, the brake light switch over the pedal almost up against the firewall.

  6. #5
    Snacky is offline Cadillac Owners Member
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    Re: P1574 and c1295 wont go away

    thnx submariner will check that tomorrow

  7. #6
    Snacky is offline Cadillac Owners Member
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    Re: P1574 and c1295 wont go away

    Ok so i still got the problem with
    P1574 - Stoplamp Switch Circuit
    C1295 - Brake Lamp Switch Circuit Open

    Things I tried so far are
    - new light bulbs
    - new stoplight switch Ė thatís the one with the 2 plugs right?????????
    - tested another ebtcm module
    - cleaned the ebtcm connector and module again
    - got battery power on pin 9 on the ebtcm plug when i press the brake
    - got battery power at the stoplight switch
    - brake lights are working including the 3th brakelight
    - ran a new ground for the brake lightís


    there 2 switches on the brake paddle one is the stoplamp and one is tcc brake switch
    according to the service manual (if I read it right) I should check the stop/btsi/cruise brake switch

    but I donít really get why cuz if my tcc light is on should I not check the tcc brake switch?

  8. #7
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: P1574 and c1295 wont go away

    But you don't have a TCC code.

  9. #8
    Snacky is offline Cadillac Owners Member
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    Re: P1574 and c1295 wont go away

    woeps i mixed the abs with tc light up in my first post sorry about that

    my abs light is off so no probs there, its the traction control light thatís on (the light in the left lower corner) and only have those 2 codes set current there are no history code's, if i clear the codes the tc light goes off for a few seconds till the code's return

  10. #9
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: P1574 and c1295 wont go away

    I did not think that a brake lamp switch would affect the T/C. I would more suspect a wheel speed sensor, but you have no such codes.

  11. #10
    Snacky is offline Cadillac Owners Member
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    Re: P1574 and c1295 wont go away

    nope no code's for the wheel speed sensor
    also checked codes wile driving with the tc light on but it only give those 2 code's

    if i clear those 2 codes the traction control light goes off till they set again.
    so it gotta do with those 2 otherwise it wouldnít turn off right?

  12. #11
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: P1574 and c1295 wont go away

    That would be my guess.

  13. #12
    Mark C's Avatar
    Mark C is offline Cadillac Owners Connoisseur
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    Re: P1574 and c1295 wont go away

    Theres a capacitor wired across the brake switch contacts, maybe that has open circuited. There should be an orange and white wire attached to the switch that is the power and feed to the EBTCM, the brake light, and cruise control circuits there should also be a black wire on each side of the switch, those are the wires to the capacitor.

  14. #13
    Snacky is offline Cadillac Owners Member
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    Re: P1574 and c1295 wont go away

    I do see the capacitor its directly hooked up onto the plug
    any idea how much volt / ohm or whatever it should measure on the orange and white wire or across the capacitor?

    thanks for your help
    Richard

  15. #14
    Mark C's Avatar
    Mark C is offline Cadillac Owners Connoisseur
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    Re: P1574 and c1295 wont go away

    You need an analog ohm meter, set your needle meter to an OHM scale. With wires off of the capacitor or the car wiring disconnected from the stop switch, and the brake switch open (no pressure on the brake pedal) touch the cap terminals, the needle should move away from the infinity and move slightly towards 0 ohms and then go back to infinity...reverse leads and on the cap and the needle should move away from infinity even further and then go back to infinity = a good cap. If the meter needle goes all the way over to 0 and stays there = a shorted capacitor If the needle doesn't move at all you have an open capacitor. You have to discharge the capacitor between each test as it picks up a charge from the ohmmeter during the test.

  16. #15
    Snacky is offline Cadillac Owners Member
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    Re: P1574 and c1295 wont go away

    It works
    it was the capacitor that was defective, replaced it with a new one and no more TC warning light and no more codes!

    thanks for the help Mark!

    Richard

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