Question about 2000 Jaguar S-Type

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P1572 Brake Pedal Switch Circuit Malfunction - 2000 Jaguar S-Type

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Posted on Sep 24, 2009

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The mechanic should check the brake pedal switch circuit malfunction .If the switch circuit is malfunctioning then you have to check for worn out or destroyed wires or parts of the switch circuit . A side from the brake circuit you also have to check the wires connected to the battery and the ignition switch.And also the fuse that is connected to the ignition switch from the brake circuit. Then replace those worn out or destroyed wires, fuse and brake circuit parts .Using tester positive or negative or the one they call tester amp. So that you will see the malfunctioning parts ,wires, fuses or worn out or destroyed parts, wires or fuses.

Posted on Sep 04, 2009

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Posted on Sep 04, 2009

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Where's is the fuse located for my brake lights on my 2007 Pontiac g6 and rear defrost fuse

Stop Lamps
your br
The brake pedal position sensor is used to sense the action of the driver application of the brake pedal. The brake pedal position sensor provides an analog voltage signal that will increase as the brake pedal is applied. The body control module (BCM) provides a low reference signal and a 5-volt reference voltage to the brake pedal position sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply battery positive voltage to the stop lamps, transmission control module (TCM), engine control module (ECM), and stop lamp relay coil side. When the stop lamp relay receives battery voltage from the BCM, the relay coil is energized and the stop lamp relay switch contacts close applying battery voltage through the STOP LP fuse to illuminate the center high mounted stop lamp (CHMSL).
I'd say you have more then a bad fuse ,just reading how the brake lights function .You should have it hooked up to a professional grade scan tool ,one that can check for DTC'S - diagnostic trouble codes in the BCM - body control module !
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the Brake Pedal Position Sensor parameter in the data list for the body control module (BCM).
  4. Apply and release the brake pedal.
Does the scan tool display a change in the voltage?

DTC B3903 Stop Lamp Relay Circuit DTC C0277 Brake Pedal Position Sensor Circuit
DTC C0278
Did you perform the Diagnostic System Check - Vehicle?
Go to Step 2
Go to Diagnostic System Check - Vehicle


  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
Does the scan tool display DTC C0278 00?
Go to Step 3
Go to Testing for Intermittent Conditions and Poor Connections


Recalibrate the brake position sensor.

Circuit Description
DTC C0870
The body control module (BCM) applies a ground through the brake sensor reference low circuit to the brake pedal position (BPP) sensor. The BCM supplies a 5-volt reference through the brake sensor reference voltage circuit to the brake position sensor. When the brake pedal is being applied, the BPP sensor then sends a variable voltage signal through the brake sensor signal circuit to the BCM.
Circuit/System Verification
  1. Ignition ON, observe the scan tool Brake Lamp Cmd. parameter as you apply and unapply the brake pedal. The parameter should change between OFF and ON as the brake pedal is applied and released.
  2. ?‡'
    If the parameter does not change as the brake pedal is applied and released, refer to Brake Pedal Position Sensor (BPPS) Malfunction.

  3. With a scan tool, command the LR Stop/Turn Signal Lamp ON and OFF. The LR turn signal should turn ON and OFF when changing between the commanded states.
  4. ?‡'
    If the LR stop lamp does not illuminate when commanded, refer to Stop Lamps Malfunction.

  5. With a scan tool, command the RR Stop/Turn Signal Lamp ON and OFF. The RR turn signal should turn ON and OFF when changing between the commanded states.
If the RR stop lamp does not illuminate when commanded, refer to Stop Lamps Malfunction.


Sep 26, 2015 | Pontiac Cars & Trucks

1 Answer

Urgent car problem

if urgent why post to jeep, all that does is delay answers. or none.
Faulty Brake Pedal Switch
- Brake Pedal Switch harness is open or shorted
- Brake Pedal Switch circuit poor electrical connection this will also set the PARK lock out feature
do you want do driver a car with no brake lamps(look)
if the lamps work the then the switch may have 2 sides
some do. and the 2nd side is bad to the park lock.
i think most newer cars dont have PARK lock bypass feature
read you operators guide , and what to do if it locks, it will say.
the NEW USA laws made the bypass Illegal. 2007? IIRC.?

nice work , scanning first. real nice.

for sure the brake switch is not sending brake held logic true.
see FSM for tests
on some cars this year, the switch must be calibrated after the swap.
the FSM covers that.

Feb 16, 2014 | 1986 Jeep Comanche

1 Answer

Codes: P1572, P0139, P1147

p1572 is a faulty brake switch ,,,, if its faulty the engine control unit thinks you are braking and it cuts down power,,,,

Nov 22, 2013 | Cars & Trucks

1 Answer

Po571 & po504

P0571 = Cruise Control/Brake Switch A Circuit Malfunction
P0504 = Brake Switch "A"/"B" Correlation

I'd say that Brake Switch Circuit A is your problem. Check the wiring connection on the switch (located on the brake pedal near the firewall), then if that seems good, replace the switch.

Oct 01, 2013 | 2002 Volvo S60

1 Answer

Manf. cntrl veh. spd. idle speed control auxiliary inputs

DTC P1572: BRAKE CANCEL SWITCH OUT OF SELF TEST RANGE NOTE: Limited information available from manufacturer.
NOTE: For circuit reference, see appropriate diagram in WIRING DIAGRAMS article.
Possible Causes
  • Open circuit, high resistance or short circuit between the brake cancel switch and PCM signal circuit.
  • Open or short circuit in the brake cancel switch power supply circuit.
  • Brake cancel switch failure.

Apr 18, 2012 | Volkswagen Jetta Cars & Trucks

1 Answer

My engine light came on and i took it to the auto parts store to check it out and the machine code was p1572

Hi, my source has a Jaguar code p1572 as being a Brake Pedal Switch Circuit Malfunction, which seems to me would be for your brake lights. Hope this helps you !

Jun 01, 2011 | 2000 Jaguar S-Type

1 Answer

2002 nissan maxima showing codes p0430 and p1572. How Do I fix these problem?

P0430 - Catalyst System Efficiency Below Threshold (Bank 2)

Basically this means that the oxygen sensor downstream of the catalytic converter on bank 2 is detecting that the converter is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.

Symptoms: You will likely not notice any drivability problems, although there may be symptoms such as a rough/hard idle when cold.

Causes: A code P0430 may mean that one or more of the following has happened:
* The catalytic converter is no longer functioning properly
* An oxygen sensor is not reading (functioning) properly
* There is an exhaust leak

Possible Solutions:
* First, inspect for exhaust leaks.
* Next step is to measure the voltage at the oxygen sensor on Bank 2. In fact, it would be a good idea to test each oxygen O2 sensor while you're at it.

One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper warranty, there still may be warranty on this type of problem. Many manufacturers give a five year, unlimited mileage warranty on these items. It's worth checking into.

P1572 - ASCD Brake Switch Circuit Malfunction
- Turn ignition switch OFFDisconnect ASCD brake switch (2) harness connector Stoplamp switch (1) Turn ignition switch ON
- Check voltage between ASCD brake switch terminal and ground under the following conditions with CONSULT-II or testerCONDITION VOLTAGE Battery voltage Approx. 0V

More than likely the brake pedal cancellation switch is bad.

Keep us updated.

Feb 01, 2011 | 2002 Nissan Maxima

2 Answers

How can fix code P0703 on mazda 6i v6 2005

The conditions that set this code are as follows:

The PCM monitors changes in input voltage on Brake Switch No. 1. If the PCM does not sense voltage changes at PCM terminal 82 when alternately accelerated and decelerated 8 times, the PCM determines that brake switch No. 1 has a malfunction

Possible Causes are:
  • Brake Switch malfunction
  • connector or terminal malfunction
  • Short to power circuit between Brake Switch terminal D and PCM terminal 82
  • Open circuit between Brake Switch terminal D and PCM terminal 82
  • Malfunctioning PCM

Nov 11, 2009 | 2005 Mazda 6

1 Answer

2000 s-type 3.0 code #p1572 came up, the heater does not work only cool air, while warming it up it died suddenly & then a couple more times on the road please help just bought car

Brake Pedal Switch Circuit Malfunction. unrelated to the heater malfunction. have the heater core inspected for blockages and possibly flush the cooling system which runs the heater core

Mar 19, 2009 | 2000 Jaguar S-Type

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