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Is there a way to test the esp probe to see if it is working properly

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  • yadayada
    yadayada Dec 08, 2016

    esp, what is that short for? What make, model and year is this car or truck?



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The esp bas light is on my 2009 dodge 1500 and it won't start

An Electronic Stability Program (ESP)/Brake Assist System (BAS) indicator is standard equipment on all instrument clusters. The ESP/BAS indicator is serviced as a unit with the instrument cluster.
The ESP/BAS indicator gives an indication to the vehicle operator when the Electronic Stability Program (ESP)/Brake Assist System (BAS) has been activated. This indicator is controlled by a transistor on the instrument cluster circuit board based upon cluster programming and electronic messages received by the cluster from the Controller Antilock Brake (CAB) and the Transmission Control Module (TCM) over the Controller Area Network (CAN) data bus.
The ESP/BAS indicator Light Emitting Diode (LED) is completely controlled by the instrument cluster logic circuit, and that logic will only allow this indicator to operate when the instrument cluster receives a battery current input on the fused ignition switch output (run-start) circuit. Therefore, the LED will always be OFF when the ignition switch is in any position except ON or START. The LED only illuminates when it is provided a path to ground by the instrument cluster transistor. The instrument cluster will turn ON the ESP/BAS indicator for the following reasons:
  1. Bulb Test- Each time the ignition switch is turned to the ON position the ESP/BAS indicator is illuminated for about four seconds as a bulb test.
  2. ESP/BAS Indicator Lamp-On Message- Each time the cluster receives an electronic ESP/BAS indicator lamp-ON message from the CAB indicating that the ESP/BAS system has been activated, the ESP/BAS indicator will be illuminated. The indicator remains illuminated until the cluster receives a lamp-OFF message from the CAB, or until the ignition switch is turned to the OFF position, whichever occurs first.
  3. ESP Full Off Textual Message- Each time the cluster receives an electronic ESP Full OFF indicator lamp-ON message from the CAB indicating that the ESP/BAS system has been manually disabled, an ESP OFF textual message will appear within the cluster odometer display. The ESP OFF textual message remains displayed until the cluster receives a lamp-OFF message from the CAB, or until the ignition switch is turned to the OFF position, whichever occurs first.
  4. Actuator Test- Each time the cluster is put through the actuator test, the ESP/BAS indicator will be turned ON, then OFF again during the bulb check portion of the test to confirm the functionality of the LED and the cluster control circuitry.
The CAB continually monitors the ESP/BAS circuits and sensors to decide whether the system is in good operating condition and the proper outputs to the components of the system. The CAB then sends the proper lamp-ON or lamp-OFF message to the Electro Mechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN).
For proper diagnosis of the ESP/BAS system, the CAB, the TCM, the EMIC, the CAN data bus or the electronic communication related to the ESP/BAS indicator operation a diagnostic scan tool is required. Refer to the appropriate diagnostic information.

Apr 11, 2016 | Dodge Cars & Trucks

1 Answer

I have a 2000 Mercedes E430 base sedan. Last week I replaced the brake light switch because it was out and it solved the problem to the point that I can now put my car into gear and drive it, however, as...

Brake light switch problem may cause the ESP / BAS lights to illuminate.

Common symptoms of a bad
Mercedes brake light switch.
  • Car stuck in Park.
  • ABS ESP ETS lights come on.
  • Can not move the shifter from Park to Drive.
  • Brakes Defective Warning on Instrument Cluster
  • Car won't shift gears. Stuck in 2nd gear, limp mode.
  • Brake lights don't work. (Brake light switch can still be defective even if the brake lights work. Checking the brake light operation is not a good test.)
  • ESP, BAS, ABS lights turn on. Car won't shift properly. Stuck in gear.

TEST: To test your new brake light switch: Turn you car off to reset the ABS light. apply the parking brake. and start the car in neutral or park without using the brake. if the problem is the brake light switch... the light will only come on when you press the brake pedal.

If you replaced the brake light switch and the light is still on you should check a few other things such as:

  • Fuses and Relays
  • ABS pump
  • ABS wheel speed sensor
  • Brake Fluid Level
  • Get an advanced scanner to read trouble codes.

NOTE: ** You may need a MBZ scan tool to reset the error code which was stored in the ECU because of the bad brake light switch.

Feb 25, 2015 | 2000 Mercedes-Benz E-Class

1 Answer

Passenger side brake light out

If the fuse is alright (brake and running lights) and the left side brake light works I would suspect a bad ground or socket.
You could use a test light to check if you have power to the bulb. Do this while the brake pedal is depressed. First remove the bulb in question ( look at the left lens a note position of brake light) just mirror the position. With bulb removed ground one end of the test light to a bare metal body part or ground wire. Use the needle end to test the exposed contacts. You will see then once you remove the bulb. One contact is battery + and the other is the ground. While the one lead is properly grounded if the probe touches the contact and the light 'lights' that means its getting power. If either of the contacts fails to light the test light you have a fuse or wire problem.

Through steps like above you can also check the ground by hooking the probe back wards. Connect the clip to the Bat. + and probe the other contact to make sure the ground is working.

Mar 09, 2014 | 1999 Dodge Stratus

1 Answer

SAAB 900 S 1996 not starting

I wouldn't think CPS if you are getting a good blue healthy spark.
Check your injector circuit with a test light: Pull off one injector connector, ground the test light, and probe the injector connector with key ON. If your injector drive circuit is working, one of the terminals on the injector connector should have a steady light. Now check the injector ground circuit: move the test light lead to the positive battery post, and probe the injector terminal that did not light the test light, while someone cranks the car over. If ground is working, you should have a blinking light, meaning the computer is properly groundind the injector to pulse. If both tests are good, the injector circuit is working properly. The drive circuit is routed through the ignition switch, and the ground circuit goes into the computer.

May 14, 2012 | Saab 900 Cars & Trucks

1 Answer

My 94 ford explorer 4.0 cranks but wont start. i have 38lbs of fuel at rail port and spark at wire. it also runs on etherfor a hot second. what else can i try?

Check your injector circuit. It will also let you know if the PCM is allowing the injectors to energize. Here's how:
Pull off one injector connector. Turn key to on. Use a test light and clip the black lead of tester to ground, Use the tester's probe to probe both wires in the injector connector. One of the wires should have power and light the testlight, meaning the injector power circuit is working. Now for the injector ground circuit.
Move the black lead of testlight to the battery positive post. Now probe the wire in the connector that did not light up. Have someone crank the car over. When cranking the test light SHOULD be blinking, meaning the PCM is properly grounding the injectors to work. If both wires passed the test, your injector circuit is good.
If it's not working,either the power circuit from ignition switch to injectors is out (no steady light), or the ground circuit from injectors to PCM is not working (no blinking light).
Good luck, post back with results for further assistance.

Nov 29, 2011 | 1994 Ford Explorer Limited

1 Answer

Radio does not work after using a tire inflator device plugged into cigarette lighter accessory-blown fuse if so how do you test fuse with ohms meter?

Remove the fuse and look closely at the element in the fuse. You can tell by looking if it is burnt into. If you cannot and want to test it with an ohm meter, then set the meter to 200 ohms and touch the probes together to make sure the ohm meter is working properly. You should get a reading if it is. Now put the black probe on one connection of the fuse and the red probe on the other. If you get a reading the fuse is good. If not it is bad.

Nov 27, 2010 | 2003 Dodge Caravan

1 Answer

The car is a 2003 altima I just changed the brake bulb, and a fuse. Now the blinker and hazard lights on the inside will not work. There are working on the out side. And i cant put the car in reverse, the...

Check the fuse you replaced and all fuses in fuse box. I believe you will find fuses that are not conducting electricty.To test them properly connect a test light clip, the ground (negitive lead) to the body of the car probe both sides of fuse. Turn ignition key to the on position. both sides of fuse should make light go on in test light.If only one side lights up replace with new fuse of proper value. never replace fuses with higher value than manufacture reccommends.

Nov 20, 2010 | 2003 Nissan Altima

1 Answer

Crank sensor test on 99 altima, can the sensor be checked with ohm meter ?

Hello there :
Yes this can be tested and here is how it takes 2 people to do this to get the best results
once it has been removed set the ohm meter to the lowest ohms setting now touch the meter probes to the 2 electrical connectors on the sensor now if you wave your hand really fast in front of the sensor you should get a fairly good reading but if nothing switch the meter probes and try it again and if still nothing than the sensor is bad ok but if you get a fairly good reading this wold indicate that it is working properly and just may need cleaning with rubbibng alcohol
You might as well test the cam sensor as well sinse they run is series ok this will keep from having to do it later ok?
using the same test meathod
Hope this helps
Best regards Mike

Sep 27, 2010 | 1999 Nissan Altima

1 Answer

The esp light comes on and the car rides rough and feels like its loosing power and sometimes the car shuts off. what can i do to fix this problem?

Sorry, but, you will need to seek the advice of a Dealer or Independent Specialist who will have the proper test equipment to accurately diagnose this problem. The ESP system controls throttle opening, ignition timing and possibly brake application too and thus the fault could be caused by a number of things – a wheel speed sensor, throttle angle sensor, steering wheel input sensor to name just a few. Best that you seek expert advice using the proper text equipment to accurately and cost effectively identify the ESP problem. Hope this helps, Scottech

Mar 16, 2010 | Audi A8 Cars & Trucks

1 Answer

Brake and tail lights

Pull the light bulbs and test the bulb sockets, use a 12 volt test light probe, kinda looks like an ice pick or awl, with the clip lead of the test light at a good ground, probe the contacts to the bulb with the lights on, if the test light glows then there is 12 volts to the socket, if not probe the wire to the socket for power, if it is ok then replace the bulb socket, the dealer can supply this part. 1st though make sure the bulb is good, swap out a working bulb to the non working side,

Aug 06, 2008 | 1998 Ford Windstar

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