How to fix 1988 Chevy 1500 power windows and locks?

Re: 1988 chevy 1500 power windows and locks dont work…. First thing to check are the fuse of your power door/windows if both are ok. If both are ok, check the power window motor mechanism if is is responding. Run a wire from the positive ground and bypass the power window switch. If mechanism will respond, then you a problem with the switch.

What causes a door lock relay to not work?

Power door locks do not function. Power door locks that do not function are another common symptom for a problem with the door lock relay. If the power door lock relay fails, it will cut off power to the entire power door lock system and may cause them to not function correctly.

What to do if your power door lock is not working?

If the ground is good, remove the door trim panel and check for power and ground coming into the power door lock actuator. If the relay and switch are working properly but you’re not getting power and ground at the door lock actuator, check the wiring harness in the hinge area of the door.

How does a power door lock work on a car?

From there, power flows to the input side of the control coil of the unlock relay. The ground side of the control coil has constant ground, so by applying power to the input side of the unlock control coil, the relay pulls the contacts closed which sends power to the door lock actuator circuit breaker.

Why is my power door lock not working?

If the relay and switch are working properly but you’re not getting power and ground at the door lock actuator, check the wiring harness in the hinge area of the door. That’s where most wire breaks occur. Here’s a power door lock wiring diagram for a 2009 Chevrolet Malibu.

How does a power door lock get ground?

Power flows through the circuit breaker and into the power door lock actuator motor. To get ground, the ground path goes through the non-energized power door LOCK relay (which is in the ground position when not energized) and then to ground. The process is similar when you move the switch to the lock position.

How does a power door lock work on a Chevy Malibu?

Here’s a power door lock wiring diagram for a 2009 Chevrolet Malibu. The body control module (BCM) supplies a voltage to each door lock switch. When you move the switch to the lock position, the switch grounds the supply voltage and the BCM sees a full voltage drop.

What should I do if my GMC power window is not working?

If there is power, then check the dark blue wires at pin B of the window switch for voltage. If no voltage is detected on any or some of the wires, the wiring in the door jamb should be wiggled while the voltage is monitored to see if the is a fluctuation. If there is, it indicates broken or loose connections in the door jamb.

Why is my power window not working on my Oldsmobile Intrigue?

The problem is likely to be a bad connection at the fuse box or ignition switch. What would cause no power to the rear right window of a 2000 Oldsmobile Intrigue? GMC power window troubleshooting for this problem will require a voltmeter. On the switch for this window, check for battery voltage at the purple and light green wires.

How to test a Chevy 1500 power window door?

Clicking this will make more experts see the question and we will remind you when it gets answered. You can’t post conmments that contain an email address. It is likely your switch, GM switches go bad all the time. The easiest way to test this is to pull off the door panel and hook two wire directly to the motor.

Power door locks and driver side power window not working. Keyless remote will not open doors although when pressed, the interior lights come on so I don’t believe it is an issue with the fob battery. Other power windows work, just not the driver side. Remote mirror control on the door handle works.

How to fix driver side power door lock?

1. disconnect the battery and connect both the positive and negative cables together(after disconnected)) 2. disconnect the window and lock controller in the driver’s side door. 3. Leave cables connected for at least 5 minutes 4. Re-connect door window controller and locks wiring harness 5.

Where are the power locks on my car?

There is a single relay that controls both the power locks and the driver’s side window, located inside the driver’s side window switch. It can get stuck open, either from the BCM sending it into safe mode or, in my case, I think, because of extreme cold.

What to do when power door lock wont work?

To view the next available mode, press and hold the reset stem until the mode appears. Release the reset stem and press and hold again to view the next mode. Once the desired mode is shown on the DIC display, briefly press the reset stem to set your choice.

Why does my driver side door lock not work?

The windows and the locks are on two separate circuits. The only part that these two have in common is the master switch. Of course it is also possible that the wiring harness between the driver side door and cowl is corroded and that some of the pins are to corroded or even broken off and do not make contact.

Why does my drivers side window not work?

A smaller version of GM’s rebirth of the Hummer. Hard to start yesterday,drivers side window,power door locks wont work,either by buttons on both doors or on key fob.Other windows work! Replaced Battery checked door lock fuse,still no drivers side window or door locks. Answered! View the answer I have this problem too Is this a good question?

How to fix power door lock on Chevy Silverado?

Step 1 – Check your wiring 1 Pop the window and door lock switch panel off the door handle. 2 Unplug the door lock connectors and inspect to make sure nothing stands out. 3 Follow lead wire to the door lock actuator. 4 If any wiring is damaged, replace them.