Car involved: 06 Saab 93 4 dr sedan.
Problem: All drivers door controls work except power door lock switch. Often open the doors with the remote will pop the trunk also, sometimes the trunk open without any input.
Door latch locks at 15 mph as they should and unlock when the Key is removed, sometimes the locks will cycle on/of quickly for 10 sec. Trunk release works some of the time. Windows, mirrors, illumination all work.
Not knowing any history of this car I started by removing and adding the BCM, all door modules, front and rear electrical center module, CIM.
Set the locking protocol and still the same behavior. Time to look around.
Removed the inside driverss door panel and tested the lock switch for 5v ground and trigger voltage, all good, triggered the lock motor and it worked fine. All connections are clean. So I have voltage to the lock switch, grounds ok and signal voltage is correct (2 resistor switch to deliver 2 different voltages for open/close trigger) to the door module which is part of the window switch but no output from it. Needs a switch module right? No.
When I was taking the panel off I see old grey primer dust, dead give away as to what is going on here. At some point the door had been replaced with an 03 door, on Saab like this one there is a quick connector in the door jamb.
The mounted the door with all the electric cables attached and just plug and play or so they thought. It has a 2003 door harness in an 06 car, it all plugs in but pins ever so slightly differently. Fortunatly I have a used one here and that took care of it. Check out the pin out for both then H8-3. 03 on the left 06 right.
Problem: All drivers door controls work except power door lock switch. Often open the doors with the remote will pop the trunk also, sometimes the trunk open without any input.
Door latch locks at 15 mph as they should and unlock when the Key is removed, sometimes the locks will cycle on/of quickly for 10 sec. Trunk release works some of the time. Windows, mirrors, illumination all work.
Not knowing any history of this car I started by removing and adding the BCM, all door modules, front and rear electrical center module, CIM.
Set the locking protocol and still the same behavior. Time to look around.
Removed the inside driverss door panel and tested the lock switch for 5v ground and trigger voltage, all good, triggered the lock motor and it worked fine. All connections are clean. So I have voltage to the lock switch, grounds ok and signal voltage is correct (2 resistor switch to deliver 2 different voltages for open/close trigger) to the door module which is part of the window switch but no output from it. Needs a switch module right? No.
When I was taking the panel off I see old grey primer dust, dead give away as to what is going on here. At some point the door had been replaced with an 03 door, on Saab like this one there is a quick connector in the door jamb.
The mounted the door with all the electric cables attached and just plug and play or so they thought. It has a 2003 door harness in an 06 car, it all plugs in but pins ever so slightly differently. Fortunatly I have a used one here and that took care of it. Check out the pin out for both then H8-3. 03 on the left 06 right.
