Aerostar 2WD V6-182 3.0L (1995)
SERVICE the grounding circuit for the door lock switch. If LOCK state doesn't occur, CHECK and SERVICE the all lock Circuit 119 (PK/Y)
or door lock switches for an open.
-
If always UNLOCK, CHECK and SERVICE the all unlock Circuit 120 (PK/LG) or door unlock switches for a short to ground.
-
If always LOCK, CHECK and SERVICE the all lock Circuit 119 (PK/Y) or door lock switches for a short to ground. If the doors lock and
then unlock about once every five seconds after ignition is turned from OFF to RUN and back to OFF, CHECK the audio system. If the rear
control unit (RCU) of the audio system has a connector unplugged or a loose ground, then the audio system will not work. Another side effect
is that there is a floating voltage on the ignition Circuit 1002 (BK/PK) to the receiver assembly. The receiver assembly is being put into
transmitter programming mode every few seconds. Fixing the audio RCU ground will fix this lock/unlock condition too.
A5 CHECK RECEIVER ASSEMBLY ALL LOCK OUTPUT
-
Enter in NGS RAP ACTIVE COMMANDS and select DR LOCK ON.
Do all doors lock?
Yes
GO to A6
No
CHECK and SERVICE Circuit 119 (PK/Y) from receiver assembly to relay. If circuit is OK, CALL phone number on receiver assembly for
additional assistance.
A6 CHECK RECEIVER ASSEMBLY UNLOCK DRIVER'S DOOR OUTPUT
-
Select NGS LF UNLOCK.
Does driver's door unlock?
Yes
GO to A7
No
CHECK and SERVICE driver's door unlock Circuit 129 (LG) from receiver assembly to relay. If circuit is OK, CALL phone number on receiver
assembly for additional assistance.stance.
A7 CHECK RECEIVER ASSEMBLY ALL UNLOCK OUTPUT
-
Select NGS DR LOCK.
Do all doors unlock?
Yes
GO to A8
No
CHECK and SERVICE Circuit 120 (PK/LG) from receiver assembly to relay. If circuit is OK, CALL phone number on receiver assembly for
additional assistance.
A8 CHECK DOOR LOCK SWITCH CIRCUIT
-
Check Circuit 119 (PK/Y) for continuity between all lock relay and door lock switch.
-
Check Circuit 119 (PK/Y) for continuity to ground.
Is there continuity and is resistance less than 100 ohms?
Yes
GO to A9
No
SERVICE open or ground in Circuit 119.
A9 CHECK DOOR UNLOCK SWITCH CIRCUIT
-
Check Circuit 120 (PK/LG) for continuity between unlock relay and door lock switch.
-
Check Circuit 120 (PK/Y) for continuity to ground.
Is there continuity and is resistance less than 100 ohms?
Yes
GO to A10
No
SERVICE open or ground in Circuit 120.
A10 CHECK DOOR UNLOCK POWER CIRCUITS
-
Disconnect receiver assembly and GEM module.
-
Remove all doors lock relay, all doors unlock relay and driver's door unlock relay.
-
Jumper battery voltage to the common contact (Pin 3) of all doors unlock relay connector and jumper ground (Pin 4) to common contact (Pin 3) of
all doors lock relay connector.
Do door lock motors unlock?
Yes
GO to A11
No
SERVICE all circuits connecting to door lock relays for shorts or opens. REPLACE door lock relays only if required following wiring repairs.
DISCONNECT door lock motors and power separately to confirm operation.