20 Most Recent 2005 Chevrolet Cobalt Questions & Answers


Window fuse's and relay's may be up under passenger side dash or behind glove box.
Drivers door window gets used the most so it could be the motor, window switch, relay or fuse.
Could also be a broken wire in the rubber boot going from the door to the body. You will have to eliminate each till you find the culprit.
The motor and the relay are the most likely to cause this problem. Try swapping the relay with a working window relay. If it still doesn't work, remove the door panel and remove the window motor.
Turn the motor shaft in both directions by hand several turns. Then plug the motor in and see if the switch will now run the motor. Sometimes thats all it takes to get it working again. I have had to do this with brand new motors. If voltage is not present at the motor connector, either a bad switch or a broken wire exsists. Make sure to check for voltage coming to that windows switch. Actually, GM use's a circuit breaker type relay for each window and one fuse for all the circuit breakers.

2005 Chevrolet... | Answered on Nov 26, 2019


it is most likely going off because the sensor that sets the alarm off when someone bangs it or breaks the window is set to sensitive. Locate the adjustment under the hood near the firewall usually on the alarm module and turn it down.

2005 Chevrolet... | Answered on Aug 18, 2019


Put the old trans module back in and check the large power feed wire at the fuse box on the center consul on the passenger side of the shifter consul,this is a known problem for having a poor electrical connector and will cause this problem. Wiggle this wire and you most likely will hear a relay click and the power steering message go out.

2005 Chevrolet... | Answered on May 20, 2019


Do you know anything about automotive electronic's ? BCM - body control modules ? DTC'S - diagnostic trouble codes ?

Turn Signal Lamps
The body control module (BCM) is responsible for controlling the turn signals and hazard lamps. When the turn signal switch is placed in either the left turn or right turn position, the BCM receives a signal from the turn signal switch. The BCM then sends an on-off voltage signal to either the left or right turn signals and their instrument panel cluster (IPC) indicator. When the hazard switch is pressed, the BCM receives a signal from the hazard switch. The BCM then will send an on-off voltage signal to all the turn signal lamps. All the turn signal lamps will flash including both IPC turn signal indicators.

Hooking up a professional type scan tool an checking for DTC'S in the BCM would be the first step in the diagnostic procedure .

2005 Chevrolet... | Answered on Apr 06, 2019


Need help programming a key fob for a 2005 Chevrolet Cobalt

2005 Chevrolet... | Answered on Mar 23, 2019


Its hard to fit your hand in the small space so best to remove the 2 bolts on top 10mm that are holding the headlight in place. The from the side, pull/pop the headlight assembly forward and out from behind the front grill area. Once its out, you can easily turn the retaining collar and remove the bulb. Be sure not to touch the glass of the new bulb or the oils from your fingers will create a hotspot and shorten the bulb life. Replace in reverse order.

2005 Chevrolet... | Answered on Mar 21, 2019


Fuel problems either the fuel pump can not keep up to the demand or a inline fuel filter is starving your engine because it is partially blocked.

2005 Chevrolet... | Answered on Mar 16, 2019


Yes. Be aware that a bad cam sensor can cause this code if the cam and crank sensor are both borderline bad, you can check with a DVOM or a scanner that reads data pids. I hope this helps. Take care

2005 Chevrolet... | Answered on Mar 03, 2019


• DTC U2105 Lost Communications With Engine Control System
Modules connected to the GMLAN serial data circuits monitor for serial data communications, during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have programmed information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are also supervised and some periodic messages are used by the receiver module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. When a message that indicates the availability of the transmitter module is not received, the receiver module sets a DTC 21xx where xx is equal to the 2-digit identification number of the transmitter module.
The DTC descriptors listed below provide a method for determining which module is not communicating. A module with a GMLAN serial data circuit malfunction or which loses power during the current ignition cycle will have a Loss of Communication DTC set by other modules that depend on information from that failed module. The modules that can communicate will set a DTC indicating the module that cannot communicate.

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

2005 Chevrolet... | Answered on Feb 23, 2019


i dont think you can just get the chip,its the complete power steering control module (
computer) typical problem withall ions and cobalts

2005 Chevrolet... | Answered on Sep 30, 2018


in front of the gear lever, under lighter

2005 Chevrolet... | Answered on Apr 21, 2018


Pull the handle to lower the seat, and open the trunk from the inside with the emergency release handle.

2005 Chevrolet... | Answered on Jan 13, 2018


The check engine light being on now is a different problem , Have DTC'S - diagnostic trouble codes checked ,will have something to do with electronic throttle control . That is what reduced engine power is about . It's in a reduced power mode.
Reduced Engine Power Mode
When the ECM detects a condition with the TAC system, the ECM may enter a reduced engine power mode. Reduced engine power may cause one or more of the following conditions:
• Acceleration limiting--The ECM will continue to use the accelerator pedal for throttle control; however, the vehicle acceleration is limited.
• Limited throttle mode--The ECM will continue to use the accelerator pedal for throttle control; however, the maximum throttle opening is limited.
• Throttle default mode--The ECM will turn off the throttle actuator motor and the throttle will return to the spring loaded default position.
• Forced idle mode--The ECM will perform the following actions:
- Limit engine speed to idle by positioning the throttle position, or by controlling the fuel and spark if the throttle is turned off.
- Ignore the accelerator pedal input.
• Engine shutdown mode--The ECM will disable fuel and de-energize the throttle actuator.

Do you know what electronic throttle control is ?
--------------------------------------------------------------------------------
Throttle Actuator Control (TAC) System Description

The throttle actuator control (TAC) system delivers improved throttle response and greater reliability and eliminates the need for mechanical cable. The TAC system performs the following functions:
• Accelerator pedal position sensing
• Throttle positioning to meet driver and engine demands
• Throttle position sensing
• Internal diagnostics
• Cruise control functions
• Manage TAC electrical power consumption
The TAC system includes the following components:
• The accelerator pedal position (APP) sensors
• The throttle body assembly
• The engine control module (ECM)

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

2005 Chevrolet... | Answered on Dec 24, 2017


General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2005-2010 model year Chevrolet Cobalt vehicles;
2005 model year Pontiac Pursuit; 2005-2006 model year Pontiac G4; 2006 model year Pontiac G5 Pursuit; and 2007-2010 model year Pontiac G5
vehicles equipped with electric power steering. Some of these vehicles have a condition in which a sudden loss of power steering assist could occur at
any time while driving the vehicle. If the power steering assist is lost, a chime will sound and a "Power Steering" message will be displayed in the
Driver Information Center to inform the driver of the condition. Steering control will be maintained, as the vehicle defaults to a manual steering mode.
If power steering assist is lost, it may require greater driver effort at low vehicle speeds, for example, below 15 mph (25 km/h). Unless a driver
compensates for this additional effort, it may increase the risk of a crash.

2005 Chevrolet... | Answered on Dec 17, 2017

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