Top 20 2005 Chevrolet Tahoe Questions & Answers

2005 Chevrolet Tahoe Fuse Diagrams

Rick's Free Auto Repair Advice https://ricksfreeautorepairadvice.com > ... > Chevrolet Sep 24, 2019 - 2005 Chevrolet Tahoe Fuse Diagrams for left instrument panel fuse box. 2005 Chevrolet Avalance fuse diagram left hand instrument panel.

Fuse Box Diagram Chevrolet Suburban / Tahoe (2000-2006)

Fuse-Box.info https://fuse-box.info > chevrolet > chevrolet-suburban... It is located in the engine compartment on the driver's side of the vehicle next to the underhood fuse box. Fuse box diagrams. Advertisements. https://www.google.com/search?q=2005+chevy+tahoe+sunroof+not+working ..

Question moved from AC Cars, the makers of the AC Cobra! Check the rear compartment Blend Door Actuators. https://www.google.com/search?q=2005+chevy+tahoe+rear+blend+door+actuator ..

Question edited for clarity. Question moved to model category. Jeff provides a great answer.

• Jeff Armer Jul 24, 2022
• When you push the A/C button on the climate control panel does it light ? Do you hear compressor clutch kick on? How are you measuring this? What wire gray or black,this sensor only has five volts from the PCM- engine computer . Five volt reference voltage from five volt ref. #2 circuit . Does your vehicle have; HVAC Systems - Manual HVAC Systems - Automatic
• Jeff Armer Jul 24, 2022 A/C Refrigerant Pressure Sensor The A/C refrigerant pressure sensor is a 3 wire piezoelectric pressure transducer. A 5-volt reference, low reference, and signal circuits enable the sensor to operate. The A/C pressure signal can be between 0-5 volts. When the A/C refrigerant pressure is low, the signal value is near 0 volts. When the A/C refrigerant pressure is high, the signal value is near 5 volts. The PCM converts the voltage signal to a pressure value. The A/C refrigerant pressure sensor protects the A/C system from operating when an excessively high pressure condition exists. The PCM disables the compressor clutch if the A/C pressure is more than 2957 kPa (429 psi). The clutch will be enabled after the pressure decreases to less than 1578 kPa (229 psi). A/C Low Pressure Switch The A/C low pressure switch protects the A/C system from a low pressure condition that could damage the A/C compressor or cause evaporator icing. The HVAC control module applies 5 volts to the A/C low pressure switch signal circuit. The switch will open when the A/C low side pressure reaches 138-172 kPa (20-25 psi). This prevents the A/C compressor from operating. The switch will then close when A/C low pressure side reaches 275-317 kPa (40-46 psi). This enables the A/C compressor to turn back ON.

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https://www.355nation.net/threads/front-suspension-torque-specs.117041/ and https://www.google.com/search?q=2005+Chevy+Tahoe,+Front+suspension+torque+specs ..

have you checked for trouble codes out of your list of parts the crankshaft sensor could if faulty cause problem but so could fuel pump fuel circuit cat converter etc just throwing parts and most are evap wont fix problem

I would get a mechanic to look at it, not really going to get a quick fix from here, someone will prove me wrong I expect, save you time getting a mechanic

https://www.cargurus.com/Cars/Discussion-t2367_ds620492

New transmissions do not have a modulator valve. They are electronically controlled.

It’s probably going to be the blend door actuator.

Which of these systems does your vehicle have ? HVAC Systems - Automatic Blower Motor Control Processor The blower motor control processor controls the speed of the blower motor by increasing or decreasing the voltage drop on the ground side of the blower motor. The HVAC control module provides a voltage signal to the blower motor control processor over the blower motor speed control circuit. As the requested blower speed increases, the HVAC control module increases the amount of time that the speed signal is modulated to ground. As the requested blower speed decreases, the HVAC control module decreases the amount of time that the signal is modulated to ground. HVAC Systems - Manual Air Speed - Front Control The blower motor forces outside air into the vehicle's interior. The vehicle operator determines the blower motor's speed when the driver places the blower switch in one of 5 blower speeds. The blower motor will always operate in any switch position other than OFF, as long as the ignition switch is in the RUN position. The blower motor and mode switches are located within the HVAC control module. The blower motor OFF input is connected in series with the HVAC control module by the off blower motor control circuit. Depending upon the selected speed, power is provided to the blower motor from either the ignition 3 voltage or battery positive voltage circuits from the fuse block. The battery positive voltage circuit only provides power when the High blower switch position is selected. Power and ground are provided to the HVAC control module by the ignition 3 voltage and the ground circuits. Low Blower Speed When the Low 1 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the low blower motor control circuit. Voltage is divided between 4 series resistors, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit. Medium Blower Speeds When the Medium 1 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the medium 1 blower motor control circuit. Voltage is divided between 3 series resistors, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit. When the Medium 2 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the medium 2 blower motor control circuit. Voltage is divided between 2 series resistors, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit. When the Medium 3 blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the medium 3 blower motor control circuit. Voltage is divided between a series resistor, a blower relay, and the blower motor to achieve the desired blower speed. The blower motor is grounded through the ground circuit. High Blower Speed When the High blower speed is selected, the HVAC control module applies voltage to the blower motor resistor assembly through the high blower motor control circuit. The voltage energizes the blower relay, causing the blower motor to be connected directly to the battery positive voltage circuit. The blower motor and blower motor relay are grounded through the ground circuit. HVAC Control Module The HVAC control module is a class 2 device that interfaces between the operator and the HVAC system to maintain air temperature and distribution settings. The battery positive voltage circuit provides power that the control module uses for keep alive memory (KAM). If the battery positive voltage circuit loses power, all HVAC DTCs and settings will be erased from KAM. The body control module (BCM), which is the vehicle mode master, provides a device on signal. The control module supports the following features:

The 4X4 on your vehicle is controlled by a electronic control module . Service 4 wheel come on ? DTC'S - diagnostic trouble code's are stored in the transfercase control module . Your best bet ,take your vehicle to a qualified repair shop

Sounds like the electronic switch or plunger is going out.

Sounds like you are having a problem with the starting motor. When activated, it throws out a gear to engage with the flywheel on the end of the engine. If there is not enough energy to fully engage the gear, or the gear does not engage properly due to misalignment, you may hear a grinding noise. Have the starting motor serviced or replaced.

It it usually one of the post fuse in the under hood fuse box and they are marked on the lid

could be an air lock in the heater rad, back flush with a hose to clear.

Did you check the front shields also. Had a lady going into a tizzy one time with pretty much the same problem. Squealing when turning only one way. I took it for a quick drive and pulled it into the shop. Took off the front wheel where I thought the offending sound was coming from. Well there's your problem lady. A small rock between the rotor and dust shield. Cost to customer. $0. Hope this helps.

What are the fault codes that are in memory of the ride control system, module?

The power windows an power locks are controlled by a module , DDM - driver door module . As far as the locks locking when you put the vehicle into reverse an unlocking when you put the vehicle into park , that's how there are suppose to work , automatic lock an unlock feature . When you put the vehicle into any gear from park the locks should lock . Did she hit window lockout function ? The power door lock system consists of the following components: • The driver door module (DDM) • The passenger door module (PDM) • The body control module (BCM) • The driver information center (DIC) • The rear door lock switch • The door lock relay • The door unlock relay • The liftgate lock relay--utility vehicles with liftgate only • The reversible door lock actuators in each of the doors and liftgate • LOCKS 20A fuse (rear lock/unlock relay supply voltage) • ECC 10A fuse (liftgate lock relay supply voltage . Programmable Automatic Door Locks The automatic door lock feature can be programmed to control the door lock system. The automatic door lock feature is factory programmed to have all doors lock and unlock. For detailed instructions on programming the automatic door locks, refer to Vehicle Personalization in Personalization. When the automatic door lock feature is programmed to control the door lock system, the driver door module (DDM), passenger door module (PDM) and body control module (BCM) will lock the vehicle doors if the following inputs are true: • Ignition 1 input is active. • All door jamb switch inputs are inactive. • Cargo door or liftgate/liftglass ajar inputs are inactive. • Transmission is shifted out of park. This automatic door lock function will only occur once per ignition cycle unless, a door jamb switch input changes state to active and back to inactive. Then the DDM, PDM and BCM will lock all doors again. Once the automatic door lock feature has locked the doors, the BCM will then unlock all the doors when the transmission is shifted into park. Driver, Passenger and Cargo Door Lock System Operation The front power door lock switches are integral components of the driver door module (DDM) and passenger door module (PDM). The switches are two position normally open rocker switches. When placed in either the lock or unlock positions, the switches provide a direct input to the DDM or PDM. The DDM or PDM monitors these inputs and sends a Class 2 message indicating a change in the switch's respective position. Modules which activate the power door lock motors receive the Class 2 message and activate the motor in the appropriate direction to lock or unlock the vehicle's doors and liftgate. The rear door lock switch provides a lock and unlock signal to the body control module (BCM). The BCM upon receipt of a lock or unlock signal will control the rear door lock relays and also send a Class 2 message to the DDM and PDM to perform the appropriate function. The modules which activate the power lock motors are: • The DDM (driver door lock actuator). • The PDM (passenger front door lock actuator). • The BCM (both rear door lock actuators and cargo door/liftgate). The DDM and PDM are directly connected to the respective door lock actuator through the door lock motor lock and unlock circuits. Once a door lock or unlock request has been received, the module will supply battery voltage to one side of the actuator and ground the other causing the doors to lock or unlock. The rear passenger and cargo doors differ slightly in that they use lock and unlock relays. The relays supply and coil sides receive a constant voltage through the battery voltage supply circuit. The normally closed contacts are connected to ground and the control side is connected to the BCM. Once a door lock or unlock request has been received by the BCM, the BCM will ground the control side of the appropriate relay. This energizes the relay and allows voltage to be applied to either the door lock motor lock or unlock circuits. since the other side of the door lock actuator is connected to the normally closed contacts of the opposing relay to ground, the doors lock or unlock.

if wiggling the harness solves the problem for a short time then either a bad connection or shorted wire is problem invest in buying a multi meter very cheap but very versatile tool while working on electrical systems and test the wiring harness as well as going to auto store and pick up a repair manual for your vehicle

Dear Sylvia, Of course you can replace the computer, but remember, if you have not fixed the problem to cause these symptoms, you may find the new computer will not work either. You need to be absolutely sure the computer is the problem. It would take many pages of this web site to tell you how to replace the computer, so it will be just as easy for you to go to a library or a car parts store, and get a repair manual and follow those instructions. Libraries check out such book, you need not buy them. Some name brands are : "Chilton's", "Motor's", and "Haynes". All are make and model specific. God bless your efforts.