Question about 2002 Chevrolet Astro
I cannot lock the doors either from passenger or driver side however the side sliding door seems to operate when engaging in park mode. I have applied 12 volts to both doors and the actuators do operate. No fuses are blown. Cannot find any loose cables or connections. Is there a control box or relay I don't know about?
I did check switches on doors and found good continuity.
I'm puzzled!!!! Got any clues I can follow?
Thanking you in advance!
Is there B+ voltage to the switch ? Check for broken wires inside the rubber boot from the body to the door .
I did check switches on doors and found good continuity. ??? Ohm test or voltage
Is there B+ voltage on the orange wire at the drivers door switch ? There are two relays one locks the other unlocks . The Cig LTR fuse supplys B+ voltage to the door switches ,not the actuators . PWR ACCY circuit breaker powers the actuators through the lock / unlock relays ! Check out wiring diagram here http://www.bbbind.com/free_tsb.html
Posted on Jun 12, 2017
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Posted on Jan 02, 2017
Even though it is new there is always a chance the actuator may not be good; I had the same symptoms with 3 of my actuators and had to replace them all about 3 years ago.
Posted on May 10, 2009
On repairing door locks first check the cigarette lighter and see if it works, the door locks gets it power on the same fuse. If good,you then need to check if 12VDC is at each of the actuators when pressing the switches for the locks. If no power is not at the actuator you should suspect the power lock relay to be defective. This relay is located beneath the steering column within a major cluster of connectors and is located within a bank of 3 relays located within a covered housing. These 3 relays are identical and you can temporaly reverse them to see if this will solve the problem. If it does, GM's part # is RY-232. Can't help you on the rest.......sorry!
Posted on Jun 06, 2009
are you sure its locked? could be the latch is frozen. try pulling the door handle open, and pounding on the door from the inside
Posted on Jun 24, 2009
had this problem before... recheck part#....is it for EATC or MANUAL...??? eatc on a manual will only go to half way...sounds like they gave you the wrong part....its a pain to replace wasn't it.....hope this helped you...GL
Posted on Jul 06, 2009
Tips for a great answer:
The driver door module (DDM)
The passenger door module (PDM)
The rear door module (RDM)
The LH front power door lock switch
The RH front power door lock switch
The LH front door lock actuator
The RH front door lock actuator
The LH rear door lock actuator
The RH rear door lock actuator
The remote control door lock receiver (RCDLR)
The power door serial data circuit
The class 2 serial data circuit
The DRVMDL Fuse - 10 amp
The PDM Fuse - 10 amp
The RRINMDL Fuse - 10 a
Class 2 and Power Door Serial Data Links
The class 2 and power door data circuits are both serial data links. The serial data circuits replace cables in the vehicle by multiplexing (time-sharing) data to and from each device over a single wire referenced to ground. If the power door serial data is lost, both the rear door module (RDM) and the passenger door module (PDM) enters the sleep mode. With the RDM and the PDM in sleep mode, no power door operations are possible.
Your best bet is to take it to the dealer or an ASE certified repair shop .
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