Question about Porsche 944
The door switches are bad, the two door switches are connected to a single control module. If one of the switches is bad, or if there is a contact in wiring harness to switch, this will affect the central lock module, hence the problem on both doors.
To replace door switches you will need first to test them and to test wiring by reading volts. on switches you read ohms to check if they open and close the circuit. To access door switches there is need to remove the door panels, the control module instead is buried behind the dash. If you have not taken apart your 944 before , then better going to a mechanic. there is risk to damage door trims, or to mess up wiring.
If you want to DIY, then get first the repair manual:Product: Porsche 944 (83 - 89).
Posted on Sep 25, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
Unlock all of the Jeep Grand Cherokee's doors and open the driver's side door. Keeping the door open, lock it using the manual lock on the door itself.
Put the manual key into the ignition and switch it to the "On" or "Run" position, whichever applicable, without starting the engine.
Point the remote at the receiver (located by the little bulb on the car ceiling) and hold down the "Lock" button for up to 5 seconds.
When the driver's side door unlocks, you know the remote has been programmed correctly. If you are only programming one remote, jump to the next step. If not, manually re-lock the driver's side door and repeat steps 5 and 6 using each remote you would like to program and then continue.
Turn the key to the "Off" position and turn the ignition on immediately. This must be done within 20 seconds of programming the last remote. You're finished!
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