E53 PASSENGER DOOR WONT OPEN FROM INSIDE OR OUTSIDE

Mujahid

New member
PASSENGER DOOR WONT OPEN FROM INSIDE OR OUTSIDE
First determine by listening if the actuator is working or not. In my case it was not. So there was no signal from the door module (located on passenger door window switch) to the actuator.
I could therefore not open the door from either the inside or outside. THERE IS NO NEED TO REMOVE DOOR CARD INSITU IN THIS CASE.
What you need to do is “hot wire “ the actuator;
Remove the door switch, using a flat tool, preferably plastic.
Undo all the connectors on the bottom of the unit.



The white connector feeds power to the actuator motors.


You need to find the BLUE, WHITE and BLACK wires on this connector (PINS 12, 6 & 7)
The BLUE is the common wire with WHITE and BLACK going to the motors in the actuator.
LOCK: +12V to the WHITE/ BLACK wire and –ve/ ground on the BLUE wire
UNLOCK: +12V on the BLUE wire and –ve/ground on the WHITE/ BLACK wire
You have to reverse polarity to LOCK and UNLOCK.



TIP: I simply used a small jumper wire and used the existing +12V and –ve available on the big black connector to pulse the actuator.
WARNING: There are BUS cables amongst these – SO PLEASE DO NOT ATTEMPT UNLESS YOU ARE COMPETENT AND ABSOLUTELY SURE OF WHAT YOU ARE DOING!!
PM if I have not been clear on any issue and I can also send you a copy of the schematic.
 
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