A/C Heater control doesnt work.... trips the antilock light
Ive replaced the blower motor and all the dials for climate control and still when i turn on the a/c or the heater the anti lock light comes on.... when i turn the climate dial to off.... the antilock seems light seems to reset and go off... The blower motor doesnt seem to engage at all and when the blower motor isnt plugged in and i turn the climate control on it still trips the A/L light... there's 5 volts going to the blower motor but still no function from the old or new motor. every once in a blue moon the motor will work but this problem is becoming annoying... chevrolet dealership says it was the climate control dial shorting out but thats been replaced.
Re: A/C Heater control doesnt work.... trips the antilock...
I have replaced the resistor and blower motor and all climate controls.... .. 5 volts on all speed except high... high gets 15 or 20 and sets off the anti lock light.... when i mess with the wiring going into the relay the antilock light flickers. i hope its just a short... i will be replacing the wiring soon... i will keep progress posted
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US. click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need. Goodluck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Do you know how to test automotive electrical circuit's , looking at a wiring diagram so you know what all is involved in the blower motor circuit . Using a DVOM - digital volt ohm meter to test the circuit . Free wiring diagram's here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model an engine size . Under system click HVAC ,then under subsystem click on HVAC controls . Click the search button then the blue link .The thing's that could be wrong , blower motor it's self , the blower motor controller for automatic climate control , a blown fuse -but fuse's don't just blow for no reason - short to ground maybe ! 40 amp fuse #1 in the under hood fuse box . Blower motor resistor block if your vehicle has manual climate control . Test And Replace Blower Motor Resistor Chrysler Town Country Caravan
Hello! it's my job to make things as easy for the customer as possible...Therefore I must ask why you want to replace the heater switch? Is it because you have lost one or two of the switch speeds? Your vehicle is noted for loss of the Blower Motor Resistor... Changing the Heater switch means removal of the Climate Control Assembly which is not the easiest of jobs...I've included the process...But are you sure the blower resistor is OK? If you have lost 1,2, or all blower motor speeds it's more than likely the Resistor pack. And a lot easier to change... Guru...saailer
Remove climate control:
Remove the instrument cluster finish panel...
Remove the 3 climate control assembly screws...
Disconnect the climate control assembly vacuum connector...
Disconnect the 5 climate control assembly electrical connectors...
When the blower works only on the high setting its usually a bad blower resistor which is right near the blower motor. now you say it would always blow high regardless of the fan speed setting that would indicate probably the climate control unit or a connector problem somewhere. finally it not working at all may be the climate control unit or connection went bad even further. it might have a blown fuse or a bad blower motor in addition to the climate control unit or connector problem .check for power and ground at the blower motor. the power is supplied from fuses and may have a relay also. the ground is supplied from the climate control unit and goes through the resistor to control the fan speed. good luck
IS IT THE BLOWER MOTOR OR THE CLIMATE CONTROL UNIT ..ALSO THERE IS A IN LINE BLOWER MOTOR RESISTOR THAT BOLTS IN TO THE LOWER DUCTS WHEN THOSE GOT OUT IT CAN ALSO CAUSE THE BLOWER MOTOR NOT TO WORK....HOWEVER IF ITS THE BLOWER MOTOR ANY FROM 95-99 NISSAN MAXIMA WILL WORK ALSO I THINK THE 95-99 NISSAN QUEST WILL WORK..CLIMATE CONTROL WILL WORK FROM OTHER MAXI'S AS LONG AS IT'S THE SAME TYPE(ELECTRONIC OR DIAL TYPE)
REMOVE HEATER BLOWER MOTOR HOT WIRE BLOWER MOTOR IT.IF IT WORKS.YOUR AC AND HEATER CONTROL SWITCH IS FAULTY.CHECK HVAC FUSES AND CHECK BLOWER MOTOR RELAY.IF BLOWER MOTOR DONT WORK WHEN HOT WIRE REPLACE IT.IF ALL CHECK OUT GOOD.HAVE DEALERSHIP DO A DIAGNOSTIC TEST ON YOUR CLIMATE CONTROL SYSTEM.
If it is manual climate control.
You have a bad blower motor resistor. To replace it remove the lower dash panel cover below the glove box and it will mount in the heater housing with 2 screws. It will have a 4 wire connector with the wire colors being OG/BK,LG/WH, YE/RD, BK If it is electronic climate control then you would have to replace the blower speed controller which is also located in the same place.