20 Most Recent 2004 Chevrolet Avalanche Questions & Answers


Early and mid 2000 GM Trucks have a instrument cluster issue, think the cluster is your problem and the unit will have to be repaired or replaced.

2004 Chevrolet... | Answered on Jun 12, 2018


If you're finding it difficult to service/repair your car, get one of those online manuals. You'll not have to wait for others to answer, or rely on mechanics and all. Plus i know a website that has very good manuals online, without expiry i.e. for lifetime.
www.reliable-store.com

2004 Chevrolet... | Answered on Mar 05, 2018


Any codes? Check crankshaft sensor and cam sensor.

2004 Chevrolet... | Answered on Mar 04, 2018


id be checking that right rear abs sensor and wiring

2004 Chevrolet... | Answered on Feb 24, 2018


If you have the scan tool plugged in and it can't read data, that's a sign you have a short in a module on the data bus. The only way a DIYer can fix this is to get a shop manual with wiring diagrams and component locations and unplug every module on the data bus one at a time until your scan tool starts working. Then you replace the bad module

2004 Chevrolet... | Answered on Feb 19, 2018


Having the codes read would be a good place to start. Some parts stores do this free of charge.

2004 Chevrolet... | Answered on Jan 20, 2018


That part inside the vehicle is called the BCM and it costs 168 dollars and has to be programmed by a dealer. More Information for ACDELCO 10367690

2004 Chevrolet... | Answered on Jan 17, 2018


Hope you can read it? I don't believe it is a fuse problem. The sending unit sends signal to pcm. The pcm sends data to instrument cluster.
coolant temperature-lvz04l4jcouq4viywajpg0bi-2-0.jpg

2004 Chevrolet... | Answered on Jan 05, 2018


possibles--chech and test 4wd / transfer case module --faulty switch --- transfer case failing

2004 Chevrolet... | Answered on Dec 23, 2017


Is it just the heated seat? If it is the element in the seat pad has shorted out and the switch acts like a circuit breaker and will turn back off after a few seconds. The only way to fix it would be to pull the seat cushion and test the leads to the element with a meter for resistance. Once the pad is replaced or repaired the switch will work as normal again. There is nothing wrong with the switch...It is the heating element in the seat.

2004 Chevrolet... | Answered on Dec 12, 2017


Sounds like a ground problem , B+ voltage feeding back through the circuit , which circuit you may ask . Looking at wiring diagrams an testing the electrical circuit's is the way to find the problem . Do you know how to test automotive electrical circuit's using a DMM - digital multi-meter ? Do you know what voltage drop testing is ?
Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia
Electric Testing Techniques You Need to Know YouTube
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 stop lamps ,then turn signals etc... till you find the problem .

2004 Chevrolet... | Answered on Dec 05, 2017


Did you have the vehicle control modules checked for DTC'S - diagnostic trouble code's ? Not going to a part's store an having it checked . Need to have a professional type scan tool hooked up , check code's in the BCM - body control module , the instrument cluster can also have DTC'S stored . Auto part stores can not check these code's .Viewing engine sensor data to the PCM to see what the real temp. is . Coolant temp. sensor is an input to the PCM/ECM - engine computer , this info is sent to the instrument cluster over the class 2 serial data network .Do you know what a automotive communication network is ? Plus GM had stepper motor problems in their instrument cluster's from 2003 to 2006 . The stepper motor is what controlls that needle .
How to repair GM Instrument Cluster Speedometer Gauge Stepper

2004 Chevrolet... | Answered on Nov 12, 2017


Have you received any failure codes (check engine light)? If you have, find out what they are by going to any parts store and they can read your failure codes for free. Let me know after that.

2004 Chevrolet... | Answered on Nov 07, 2017


Test the electrical circuit's ! Look at a wiring diagram so you know what wire's to test . Watch these video's , buy a DVOM - digital volt ohm meter . Learn to test so you don't listen to guesses .
Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia
Electric Testing Techniques You Need to Know Free wiring diagrams here . http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size. Under system click on lighting ,then under subsystem click headlamps . Click the search button then the blue link's . Right away in the first diagram i see the headlamp / panel dimmer switch is a input to the BCM - body control module . I mite think your first response would be to want to replace the BCM ! Reading a discription of how the lights are suppose to work may shed some light on the problem .
Headlamp ON/OFF control is determined by the body control module (BCM) by a signal on the headlamp switch on input circuit when the headlamp switch is in the HEAD position. When the headlamp switch is in the AUTO position, the BCM determines headlamps ON/OFF by the voltage from the ambient light sensor.
If the headlight switch is left in the ON position, the inadvertent power control feature will turn off the headlights approximately 10 minutes after the ignition switch is turned to the OFF position. If the driver places the headlight switch in the ON position after the ignition switch has been turned OFF, or if the ignition switch is in the ACCY position, the headlights will remain on until turned off or the battery runs dead.
The high beam indicator is illuminated when the instrument cluster receives a class 2 serial data message from the BCM that the high beams are illuminated.

Having the vehicle checked for DTC'S - diagnostic trouble codes , BCM - codes ! Need a professional type scan tool . Part stores can't read body codes , dealer or independent repair shop .

DTC B2575
When the body control module (BCM) senses a request for low beam headlamp illumination, the BCM sends a ground signal to the low beam headlamp relay through the headlamp low beam relay control circuit. The headlamp low beam relay will apply voltage to illuminate the headlamps.
DTC B2580
When the body control module (BCM) receives a ground signal from the multifunction high beam or flash to pass (FTP) switch commanding to illuminate the high beam headlamps, the BCM will energize the high beam relay by grounding the high beam relay control circuit.
DTC B2600
DTC B2610
The body control module (BCM) receives a variable voltage signal from the instrument panel (I/P) dimmer switch requesting to illuminate the illumination lamps to a desired intensity. When this occurs, the BCM directly sends a variable voltage based on the I/P dimmer switch position on the instrument panel lamps dimming supply voltage circuit, instrument panel lamps dimming control circuit, and the LED dimming signal circuit.
Voltage for the instrument panel lamps dimming supply voltage circuit, instrument panel lamps dimming control circuit, and the LED dimming signal circuits is from the TBC 2 A fuse in the instrument panel fuse block directly through the BCM to these circuits.

DTC B2620
The BCM directly sends a 5 volt reference voltage to the I/P dimmer switch which is then adjusted based on the I/P dimmer switch position and returned as a dimming return and dimming input to the BCM. The BCM uses this signal to directly control the desired level of instrument panel illumination lamp intensity.

Your best bet , take it to a qualified repair shop .


2004 Chevrolet... | Answered on Oct 23, 2017


Try cleaning the MAF sensor. Computer uses that info to determine pump pressure. If that doesn't work, you're looking at a new tranny

2004 Chevrolet... | Answered on Oct 19, 2017


What ?????????? No start problem ????? Need more info. fuel pressure modulator ???????? No such thing on your vehicle . You need to take your vehicle an have it professionally diagnosed . 048 Engine Hard to Start or No Start Scan Data for Starting Problems

2004 Chevrolet... | Answered on Oct 05, 2017


Take it an have it checked for DTC'S - diagnostic trouble codes . With warning light's on DTC'S are set in the ABS control module , the air bag control module ,PCM - engine computer or transmission control module . No guessing here ! Test an check

2004 Chevrolet... | Answered on Sep 28, 2017


You may have memory seats, your owners manual should have some info on setting memory.
I looked at wiring diagram for your power seat, driver side, it showed three seat motors depending on what your trying to do? If the seat won't move forward and back, have to check horizontal seat motor. The fact that one of the seat motors is working tells me voltage and ground to the seat switch are ok. Could be a seat motor or the control switch problem? I'd have to do testing to decide which?

2004 Chevrolet... | Answered on Sep 26, 2017

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