obd1 code 536
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obd1 code 536
look it up online said . Brake On Off open or shorted to ground . can you tell me what this means ? I have new brakes front and back. I just went bought new power brake booster. have not put it on yet. ty
Fleet Owner
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From: Easton,Ks
You did not say if it was a CM or KOER self-test error code 536.
I will guess it is an KOER, if so more than likely operator error while running the self-test.
DTC 536 indicates that when the brake pedal was depressed and released during the Key On Engine Running (KOER) Self-Test, the BOO signal did not cycle high and low.
Possible causes:
-- Brake pedal not depressed and released during the KOER Self-Test.
-- Brake pedal depressed during entire KOER Self-Test.
-- Open BOO/stoplamp circuit.
-- Short to ground or power.
-- Damaged brake switch.
-- Damaged Powertrain Control Module (PCM).
Was the brake pressed during the KOER Self-Test?
DTCs 632 indicate the Transmission Control Switch (TCS) was not cycled between engine "ID Code" and the "Goose Test" in Key On Engine Running (KOER) Self-Test.
Possible Causes:
-- TCS damaged or switch not cycled during self-test.
-- Shorted harness.
-- Open harness or fuse.
-- Damaged Powertrain Control Module (PCM).
Was TCS cycled during KOER Self-Test?
I will guess it is an KOER, if so more than likely operator error while running the self-test.
DTC 536 indicates that when the brake pedal was depressed and released during the Key On Engine Running (KOER) Self-Test, the BOO signal did not cycle high and low.
Possible causes:
-- Brake pedal not depressed and released during the KOER Self-Test.
-- Brake pedal depressed during entire KOER Self-Test.
-- Open BOO/stoplamp circuit.
-- Short to ground or power.
-- Damaged brake switch.
-- Damaged Powertrain Control Module (PCM).
Was the brake pressed during the KOER Self-Test?
DTCs 632 indicate the Transmission Control Switch (TCS) was not cycled between engine "ID Code" and the "Goose Test" in Key On Engine Running (KOER) Self-Test.
Possible Causes:
-- TCS damaged or switch not cycled during self-test.
-- Shorted harness.
-- Open harness or fuse.
-- Damaged Powertrain Control Module (PCM).
Was TCS cycled during KOER Self-Test?
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well I used koer one at oriley. read passed. reason cause I have check eng light on. then took to shop I think they used a cm . they got codes 356 and 632. so you think the power brake booster ok ? or should bring new1 back ? what do I need replace ? ty
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i should of listen. I changed out power booster. don't try this at home on 94 and up. I took off easy. new one in had put it on. started the truck up. stuck in park and no brake lights. if never done one better have a friend or know how do it. if never done one better take some pictures under the dash on brake switch . I had friend come over tonight he look under the dash on brake pedal and knew right off what was wrong. now wait till morning and find out if my check eng light comes back on. hope not.
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