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1997 Chevy S-10 Doors intermittantly lock and unlock uncommanded.
This ''ghost'' locking and unlocking is spuratic and will stop when the power accessories 20 amp breaker is pulled. I did try disconnecting the door switches thinking there might be a short but this did not stop the problem...could this be the grounding issue on the relay, relay going bad, or is there a short in the wiring?
I found the relay (six pin) under the glove box on the passenger side. Replaced it and the problem still continued. I don't think it is the power accessory breaker (although it does make a clicking noise when the switches are used). I found the relay (six pin) under the glove box on the passenger side. Replaced it and the problem still continued. I don't think it is the power accessory breaker (although it does make a clicking noise when the switches are used).
Good idea...however this model does not have that function...but it does have a keyless entry system that could be causing the problem. I do not know where the relay or conrol circut for that is...nothing in the Haynes manual.Good idea...however this model does not have that function...but it does have a keyless entry system that could be causing the problem. I do not know where the relay or conrol circut for that is...nothing in the Haynes manual.
Found the remote keless entry module under the dash on the drivers side...right behind the scan tool connection point. Disconnected and the intermittant problem stopped but now the driver door will not fuction electrically. the relays in the moduale are chattering when it is plugged in. Will see if the dealer has replacement module.Found the remote keless entry module under the dash on the drivers side...right behind the scan tool connection point. Disconnected and the intermittant problem stopped but now the driver door will not fuction electrically. the relays in the moduale are chattering when it is plugged in. Will see if the dealer has replacement module.
cgyver468 said it would be. It's relays were chattering. when disconnected the ghoast problem stopped but the driver door will only opperate manually...passenger side is okay...will have try a replacement module nexFound the keyless entry module right where
cgyver468 said it would be. It's relays were chattering. when disconnected the ghoast problem stopped but the driver door will only opperate manually...passenger side is okay...will have try a replacement module nex
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Re: 1997 Chevy S-10 Doors intermittantly lock and unlock...
Try reprograming the auto locking feature,you will need the owners manual for instructions to do it,you should be able to turn off the auto-locking part of it,like when you put it in gear and the doors automatically lock.
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10 posts - 8 authors
02-17-2011, 07:26 AM ... Two or three times while driving( in motion) the door lockswill cycle two or three times through the lock/unlock positions and then will stop. ...Since i can't produce this glitch on demand there is no point taking it to the dealer. ...The Malibu system will not let you lock the doors when the door is open.
Sep 23, 2011 - 10 posts - 7 authors
When I was driving this afternoon, the car would unlock itself at random intervals. ... It is reasonable to expect that Chevy could design a car whose doors remain locked while the car is in motion. ... 2009 Malibu 2LT, Adopted 5-7-2011 ... If you can get them to replace ALL 4 of them for a $100 deductible, I'd ...
https://www.chevrolet.com/.../Chevrolet/.../2011_chevrolet_malib...
ChevroletChevrolet Malibu Owner Manual - 2011 ..... remotely lock and unlock the doors from up ... The trunk can only be opened when ...... the vehicle is in motion can be.
The rear doors probably dont come w accuators in them. Meaning that the rear doors alot of times don't have power options. If you are certain that your rear doors have factory power locks then I would say it's a wire somewhere...did you try a double click of the unlock button. My two door chevy truck unlocks the driver door with one click and the pass door requires a double click. Hope this helps !
Doesn't lock or unlock ? These relay's are controlled by the BCM - body control module .
I have factory service repair information , 32 steps ! Too much info to post here .
Power Door Locks Inoperative (Rear Door(s))
2
Activate the door lock switches to the lock and unlock positions.
Do both rear passenger doors lock and unlock?
YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO - Go to Step 3
3
Is there only one door lock actuator that is inoperative?
YES - Go to Step 6
NO - Go to Step 4
4
Are the rear door lock actuators inoperative for both lock and unlock?
YES - Go to Step 8
NO - Go to Step 5
5
Do the rear door lock actuators lock?
YES - Go to Step 15
No - Go to Step 10
6
Disconnect the inoperative door lock actuator.
With a test lamp connected to a good ground, probe the door lock actuator lock circuit at the door lock actuator harness connector.
Activate a door lock switch to lock position.
Does the test lamp illuminate?
YES - Go to Step 7
NO - Go to Step 25
Some of these steps can be bypassed because you say they worked after replacing the relay .LOCK RELAY ? right .
7
With a test lamp connected to a good ground, probe the door lock actuator unlock circuit at the door lock actuator harness connector.
Activate a door lock switch to unlock position.
Does the test lamp illuminate?
YES - Go to Step 24
NO - Go to Step 26
8
Remove the rear door unlock relay.
Connect a test lamp to battery positive voltage.
Probe the door actuator unlock control circuit cavity in the left IP fuse block.
Does the test lamp illuminate?
YES - Go to Step 21
NO - Go to Step 9
9
Install the rear door unlock relay.
Remove the rear door lock relay.
Connect a test lamp to battery positive voltage.
Probe the door lock actuator lock control circuit cavity in the fuse block.
Does the test lamp illuminate?
YES - Go to Step 20
NO - Go to Step 22
10
Remove the rear door lock relay.
Connect a test lamp to a good ground.
Probe the battery positive voltage circuit (high current) cavity in the fuse block.
Does the test lamp illuminate?
YES - Go to Step 11
NO - Go to Step 22
If your not familiar with GM diagnostic flow chart's , they can be confusing .
Let me know if you need more diagnostic steps .
Take the liftgate inside panel off an check the wiring , connections etc.... rear door hatch lock repair GMC Chevrolet chevy tahoe lift gate not opening
The liftgate will lock any time the vehicle is shifted out of park on vehicles equipped with an automatic transmission and at vehicle speeds exceeding 5 kph with manual transmission. This happens in conjunction with auto door locks if enabled or independently of auto door locks if the feature is disabled. This ensures that the liftgate is locked anytime the vehicle is shifted out of park or when the vehicle is in motion.
The liftgate lock relay supply and coil sides receive a constant voltage through the battery voltage supply circuit and the ECC fuse. The normally closed contact is connected to ground and the control side is connected to the body control module (BCM). A lock function will occur when a door lock switch activation, keyless entry lock transmission, auto door lock function or a liftgate lock function has been received by the BCM. The BCM will then ground the control side of the liftgate lock relay. This energizes the relay and allows voltage to be applied to the liftgate lock actuator lock control circuit. Since the other side of the liftgate lock actuator is connected to the normally closed contacts of the door unlock relay to ground, the liftgate will lock. When an unlock function occurs the BCM will ground the control side of the unlock relay and the rear doors and liftgate will unlock.
The BCM also runs diagnostics on the liftgate lock relay control circuit and will set DTC B3825 as current and also send a Class 2 message to the DIC. The DIC will display REPLACE LIFTGATE FUSE to inform the driver that a fault has been detected in the liftgate lock circuit and that the liftgate is not locked. Faults that will set the DTC and cause the DIC to display the message could be any of the following
Power Door Locks Inoperative - Endgate/Liftgate
Schematic Reference: Door Lock/Indicator Schematics
Connector End View Reference: Power Door Systems Connector End Views
1
Did you perform the Diagnostic System Check - Vehicle?
YES - Go to Step 2
NO - Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2
Activate the door lock switches to the lock and unlock positions.
Do both rear passenger doors lock and unlock?
YES - Go to Step 3
NO - Go to Power Door Locks Inoperative
3
Did the liftgate lock actuator lock and unlock?
YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO - Go to Step 4
4
Disconnect liftgate door lock actuator.
With a test lamp connected to a good ground, probe the door lock actuator lock circuit at the door lock actuator harness connector.
Activate a door lock switch to lock position.
Does the test lamp illuminate?
YES - Go to Step 5
NO - Go to Step 7
5
With a test lamp connected to a good ground, probe the door lock actuator unlock circuit at the door lock actuator harness connector.
Activate a door lock switch to unlock position.
Does the test lamp illuminate?
YES - Go to Step 6
NO - Go to Step 8
6
Inspect for poor connections at the harness connector of the door lock actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 10
NO .. Go to Step 9
7
Repair the open door lock actuator lock circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
YES - Go to Step 10
--
8
Repair the open in the door lock actuator unlock circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 10
--
9
Replace the liftgate door lock actuator. Refer to Door Lock Actuator Replacement in Body Rear End.
Did you complete the repair?
Go to Step 10
--
10
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 2
replace switch. if problem on all doors replace master on driver side door. switch has two modes: lock & unlock. Unlock is working, lock is not working, means power is good, individual switches are good, master switch is bad. Replace from used car fine.
check wiring going to door there is a black rubber boot going to door wires have rubbed to a short. roll windows up and down if locks start working thats the door to check If one of your door locks don t work, check wiring
Hello I am not sure if this is the exact fix but I was having the same problem and I took my Malibu in to be checked and it appears to be a problem inside the steeringcolumn. When I turn the steering wheel it makes the door locks go crazy!! So although this is not a fix it may be a place to look for a frayed wire or a short in the wires. I am taking my Malibu in on Monday to be checked. Good luck to all having the same problem.
I found the relay (six pin) under the glove box on the passenger side. Replaced it and the problem still continued. I don't think it is the power accessory breaker (although it does make a clicking noise when the switches are used).
Next stop is to look for a shorted wire maybe in the door jam.
Good idea...however this model does not have that function...but it does have a keyless entry system that could be causing the problem. I do not know where the relay or conrol circut for that is...nothing in the Haynes manual.
Found the remote keless entry module under the dash on the drivers side...right behind the scan tool connection point. Disconnected and the intermittant problem stopped but now the driver door will not fuction electrically. the relays in the moduale are chattering when it is plugged in. Will see if the dealer has replacement module.
Found the keyless entry module right where
cgyver468 said it would be. It's relays were chattering. when disconnected the ghoast problem stopped but the driver door will only opperate manually...passenger side is okay...will have try a replacement module nex
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