Question about 2006 Chevrolet HHR

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Ignition switch??? temperature guage not working- sending unit keeps blowing, also dash lights will sometimes go out. and when car is running, tilt the wheel down semi hard and will shut car off!! also changing from hi-low beem will power off the headlights for a second (dimmer switch was just replaced and not differance).

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  • Chevrolet Master
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Do you have a professional scanner ,do a scan of the whole vehicle . Instrument cluster , BCM , etc... Not OBD2 scan from autozone or advance etc.... thier tool can't check the whole vehicle network . The control module's on your vehicle all share information on what is called a serial data bus ,or communication network. ( temperature guage not working- sending unit keeps blowing, ) I don't think the sending unit is the problem , an it's not a sending unit . It's a engine coolant temperature sensor ,an it's a input to the PCM/ECM - engine computer . The engine computer send's this info. to the instrument cluster on the GMLAN data network . GM had problem's with stepper motors in the instrument clusters . The stepper motor control's the gauge needle.2003 to 2006
How to repair GM Instrument Cluster Speedometer Gauge Stepper

Also sounds like you have wiring harness issue's ,finding an viewing wiring diagrams an using a DMM - digital multi-meter to test affected circuit's is the way to a fix. Not guessing !


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Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model an engine size. Under system click on lighting ,then under subsystem click on headlamps . Click the search button then the blue link . Looking at the diagram you will see the headlamp / multifunction switch is a low voltage input to the BCM - body control module , do you know anything about automotive electronic's ? The high beams are contolled by a relay energized by the BCM . Check through some of the other wiring diagrams ,for the dash light's , pull the instrument cluster an check connection's ,power & ground circuit's etc...

Posted on Nov 27, 2017

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Posted on Jan 02, 2017

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  • 33 Answers

SOURCE: Highbeam Headlights not working

try replacing the fuse because low beam and high beam are two different systems

Posted on Aug 07, 2008

  • 431 Answers

SOURCE: dashboard lights

check the wiring cable and the internal signal cable

Posted on Jan 10, 2009

  • 1 Answer

SOURCE: 1989 Dodge Dakota Dimmer Switch

My dimmer switch is the head light switch.

Posted on Jan 20, 2009

  • 68 Answers

SOURCE: 1995 Jeep Wrangler, headlights went out and the

check fuses and if conection are good

Posted on Aug 08, 2009

  • 3600 Answers

SOURCE: dimmer switch instalation

The harness is worn on the inside of the steering wheel needs to be removed and the harness repaired or replaced. This is dangerous because it has air bag inside, if you want to do this post here and I will post the proceedure to do this with.

Posted on Oct 17, 2009

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Please rate and god bless:)

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