Question about 2004 Mazda 6

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Mazda 6 speedometer and tachometer and thermometer not working, abs light and motor light and brake light is on

Can't get obd-results (Link error)

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Posted on Jan 02, 2017

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SOURCE: need to know how to reset the abs warning light, repairs have been made

The ABS light will stay on only when a problem exists. Once repairs have been completed and no problems exist the ABS light will go off on it's own. Take the car back to where you had the work done and have them fix it. It shouldn't cost you anything. If the ABS light was not "on" when you took the car to them, DO NOT let them charge you to fix it. They caused the problem. They can fix it. Good luck. Hope this is helpful.

Posted on May 13, 2009

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SOURCE: 2002 Mazda Protege ABS & Brake light

It is most likely caused by one of the ABS wheel speed sensors, those little cylindrical nipples on the back of your rotors with the cable attached to them. One way to confirm it is to read out the OBD2 codes for the ABS system, but there are some checks you can do. Visually check all four cables and sensors , and make sure there is no build up on the sensors. Make sure that the connector they plug into has good connections. Look at the wheel speed sensor and make sure the gap between the sensor head and the sprocket is the same on all four wheels (should be no more than a mm). Disconnect the wheel speed sensor cable and use an ohm-meter to check the resistance of all four sensors (they should all be similar, but don't remember the value exactly). There is a way to just disable the ABS by pulling out the 60A fuse, but if you do that you may have to plug in a code reader and use a grounding jumper on the ABS electical access box (don't remember which pin) to reset the ABS faults, otherwise you won't be able to drive around like that because your engine rpm at high speeds will behave erratically. Also, do not drive around without fixing this problem or bypassing ABS completely because it could get you into an accident. My ABS problem was intermittent, and the ABS would sometimes kick in on completely dry pavement as soon as I touched the break pedal, it almost caused me to rear-end a car on couple of occasions.

Posted on Jul 30, 2008

  • 176 Answers

SOURCE: brake sensor? something else?

You have a faulty wheel speed sensor. This is a magnetic pick up sensor on your wheel bearing hub and it controls your abs. If the car can not sense all 4 wheels then the abs will default back to normal brakes and your traction control will not work. Look at your wheel bearing hubs and check for these sensors. They are on the underside of the car and are black plastic with a wire comming out of it. A piece of gravel may have broken the pick up or the wires to a sensor may be broken as well. To replace it is usually a couple of screws on the hub assembly and a plug to disconnect from your wire harness.

Posted on May 27, 2009

  • 91 Answers

SOURCE: I have a 2005 mazda rx8. After running for a few

sounds like it needs to be taken to a madza approved repairer for then to be plugged in for a dianostic annalisis, too many warning lights for one fuse.

Posted on Jul 25, 2009

  • 117 Answers

SOURCE: mazda 626 (2000) ABS light comes on sometimes

This is most likely caused by an erratic wheel speed sensor when the car is turned on it does a abs system check. When the light goes on and off it is because probblem only shows up when wheel speed sensor signal is vaulty. Since you just did the front brakes and know the problem started, it is most likely that the sensor got damaged or misaadjusted. The other thing you need to check is, the sensor is magnetic and can catch alot of debris, like metal shavings from a freshly turned rotor or other metal particles. I would see if there clean and the reluctors are clean to, also check connection and wire make sure it was not damaged. The other thing that can happen but is least likely is that, materials can be pushed into the hydraulic control module. This happens by forcing the piston to the very bottom without opening the bleeder valve since, this is where dirt and corrosion usually accumulates.

Posted on Jul 25, 2009

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Speedometer works but not the rpm gauge 98 Tahoe 5.7


The speedometer is operated differently then the tachometer. Tachometer
The tachometer displays the engine speed in revolutions per minute (RPM). Voltage pulses are taken from the ignition control module (ICM) (Gasoline) or the generator (Diesel) and sent to the tachometer. Solid state circuits convert the pulse frequency in order to move the pointer of the tachometer.

Tachometer Inoperative (Gas)
Step
Action
Value(s)
Yes
No
1
Did you perform the OBD II System Check been performed?
--
Go to Step 2
Go to Powertrain On Board Diagnostic (OBD) System Check (5.0L/5.7L); Powertrain On Board Diagnostic (OBD) System Check (7.4L)
2
Remove the I/P Cluster.
Disconnect the Ignition Coil connector.
Connect a J 39200 DMM (continuity) between I/P Cluster connector cavity 6 and ground.
Is continuity present?
--
Go to Step 3
Go to Step 4
3
Locate and repair the short to ground in CKT 121 (WHT) between the Ignition Coil and the I/P cluster. Refer to Wiring Repairs in Wiring Systems.
Is the repair complete?
--
Refer to Instrument Cluster System Check
--
4
Connect a J 39200 DMM (continuity) from I/P Cluster cavity 6 to ignition coil connector cavity B.
Is continuity present?
--
Go to Step 5
Go to Step 6
5
Replace the I/P Cluster. Refer to Instrument Cluster Replacement .
Is the repair complete?
--
Refer to Instrument Cluster System Check
--
6
Locate and repair the open in CKT 121 (WHT) between the Ignition Coil and the I/P Cluster. Refer to Wiring Repairs in Wiring Systems.
Is the repair complete?
--
Refer to Instrument Cluster System Check

Dec 26, 2014 | 1998 Chevrolet Tahoe

1 Answer

Codes u0121


The brake controller wont talk to the ECM, it could be the cable or the brake controller.

May 07, 2014 | 2005 Mazda 6 2.0

1 Answer

2005 Chrysler Pacifica speedometer and tachometer not working


you may have a bad instrument cluster and on yours the BCM run the cluster not the PCM

Dec 20, 2012 | 2005 Chrysler Pacifica

2 Answers

My 93 chevy s10 blazer speedometer is no working is electronic i test the plug on the speed sensor and i do not get any power


not a good idea to do a voltage test on a computer component, it can result in damage to the ECM.
if only the speedometer is not working and the other gauges do work, the first place to start is the speed sensor, it is the most common issues with inoperative speedometers.

Sep 23, 2011 | Chevrolet Blazer Cars & Trucks

3 Answers

THE SPEEDOMETER STOPS WORKING WHEN IT GETS HOT ON MY 2004 TRAIL BLAZER THANKS.


If everything else works ok, the vehicle drives normally, and all the other gauges are working then you may have a bad speedometer servo motor. This servo is what actually moves the speedometer needle to match the speed you are driving at. The cluster would need to come out and be repaired to fix this problem if this is the case.

Jan 17, 2011 | 2004 Chevrolet TrailBlazer

2 Answers

Car speedo & odometer sometimes work OK, other times not at all.


Most likely a speed sensor is going bad (most cars and truck do not use mechanical speedometer cables anymore) most sensors are located near the differential in rwd cars or near the drive shaft on the transmission. Best bet is to get a Haynes manual for your car to help locate the speed sensor. Remove it and take it to the auto parts store so you can visually compare it to the replacement. Install the new speed sensor and it should restore your speedometer and odometer.

Aug 19, 2009 | 1996 Honda Civic

3 Answers

Speedometer going crazy not reading correctly


speedometer cable? speed sensor or speedometer meter it's self! engine light on scan obd 2 to retreve codes don't gue$$

Jan 04, 2009 | 1995 Honda Accord

2 Answers

1995 honda civic dx


Look on the wiring harness it plugs in on top of the transmission
make sure all the wires are together. If every thing is ok with the wiring, The sensor is the only thing it could be. A gook used spedometer sensor from the junk yard will work this sensor dosent take a lot of abuse so a good used one will be cheap and work just fine. This is a job you can do your self and save a lot of money. I had the same problem with my 95 civic

Jul 12, 2008 | 1995 Honda Civic

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