Typical Problems and solutions;
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| Car alarm comes on at random after car has been turned off. Door is locked, and LED flashing showing alarm was armed. But at some point (30 seconds to hours later) the alarm goes off. | One of the door, trunk, or hood latch switches is defective. Often the rubber boots over the door switches get ripped, and water intrudes into the switch. They can be carefully taken apart, and blown out with air... but unless you get a new rubber cover - its doomed to repeat the problem once it gets wet again.Get the new door switchA good way to know if this is the problem is to see if the overhead light is "on" when the alarm goes off, this means its a door switch without a doubt. ------------------------- The alarm module intermittently lost power. Unplug alarm module and reset the two plugs. Check the wires into the fuse block to make sure they are all seated. Check connectors "D, H, and Y"---------------- Other possible defect, low (main car) battery voltage or bad battery cables. The alarm will sense the drop in voltage and go off, thinking the car is begin stolen.---------- |
| Car will not start (no crank). Alarm is going off, and the car will not crank to start. | Unlock drivers door with key (or passenger side if equipped). If the alarm is disarmed the issue may be with the internal relay in the alarm module itself or other base starting problem, see this link.http://vwrepairhelp.blogspot.com/2011/07/mkiii-jettagolf-no-crank-diagnosis-20.html Alarm is able to be bypassed, however, 1998 and later cars will loose keyless lock/unlock. Pins T/5 and T/6 MUST be jumped to start car. (see below). |
| Car alarm will not arm. Door is locked from the outside, LED does comes on, but flashes slowly. No alarm honk is heard. | One of the door, trunk, or hood latch switches is "open". The system will not arm at this time if any item is left open. Check for broken wires in the body or damaged alarm switches |
| Car alarm will not arm. Door is locked from the outside, LED does not come on, and does and does not flash. No alarm honk is heard. | Check for broken door jamb wires or damaged key switch wire in door latch mechanism (on the door) or damaged linkage from door handle lock cylinder to latch mechanism . Missing alarm system module, or loss of ground, or power to module. |
| Car alarm comes on at will (at random) as car is driving. Lights flash and alarm horn sounds - its flat out scary the first time it happens, and its pretty embarrassing. | The alarm module intermittently lost power. Unplug alarm module and reset the two plugs. Check the wires into the fuse block to make sure they are all seated. |
| Drivers door will not turn off or arm alarm. Once the door is opened the alarm goes off. | Try the passenger door to see if the same problem happens - if it does NOT happen with the passenger door - Check for broken door jamb wires or damaged key switch wire in door latch mechanism (on the door) or damaged linkage from door handle lock cylinder to latch mechanism . |
| Remotes do not work or program. | Verify a white alarm module is present in car. Verify alarm module has power. Program Remotes. Change Batteries. If alarm module has power/ground and batteries are new, and all remotes will not program - replace alarm module. |
| Central lock pump runs for more then 5 seconds when doors are locked or unlocked with remote or key. Door lock will not open/close with remote or central lock button. | Break in air-line plumbing. Check for pulled air lines at door gaps. Pull back rubber boot and door panels to view line quality. |
| Car does not beep when disarmed. | Normal, not an option. |
| Remotes only open all doors, not just drivers door. | Normal, not an option. |
| Central lock button inside car does not open doors when car is armed. | Normal, not an option. |
Programming new remote controls
Two keys and all the remote controls that are to be programmed will be needed. The maximum number of remote controls that can be programmed, including old and new, is four.
- Insert first key into ignition switch, and turn it to "ignition on."
- Insert second key into outer door handle, and turn it to unlocked position for 10 seconds. System alarm will emit three beeps.
- Take first remote control to be programmed and press button -1-, two beeps will be emitted.
For second remote control, press button -1-, two beeps will be emitted. Use same procedure to program third or fourth remote control. All remote controls must be programmed within one minute, otherwise new programming will cancel and old remote control programming will be valid.
- Turn key in outer door handle to unlocked position for 10 seconds, one beep will be emitted.
- Switch ignition off.
• Insert screwdriver into slot at side of button 3 (Trunk rear/lid button) and lift upper part off (observe polarity).
VW Part number: N103 221 01 = battery
"Silver module"
many thanks to Bob D (a3clusters (at) hotmail.com) for the following beautiful pics..
"Black Module"
Note: Later cars (1998 and later) and all VR6 cars have the hood latch as part of the hood-alarm switch.
#1 shows the vacuum pump air line
#2 shows the door latch micro switch
#3 shows the door pin lock rod
the module is orientated like this inside the car.. while sitting in the driver seat.
To gain access to the alarm module:
remove headlight switch;
remove lower cover off fuse box (2 or 3 screws) pull down cover.
remove lower knee bolster cover (under steering column) again, 2-3 screws
unclip and lower down fuse block.
Now you can unbolt the one bolt that holds the alarm module to its bracket.. and then reach up under the dash to grab it and gain access to the alarms wires and plugs.
A view of the module from inside the headlight switch.
The Alarm plugs. The 6 pin connector is on the right.
The 6 pin alarm plug close up - note the two heavy gauge wires that are used to power the starter. These are the two wires that need to be "jumped" if you are bypassing the alarm module if you ever want your car to start again.
NOTE: With the alarm bypassed/unhooked - Central lock system will STILL work, HOWEVER, if you have FACTORY keyless (white box), your keyless functions will be LOST!
Rear of fuse panel: Check connectors "D, H, and Y"
Alarm schematic (general Golf/Jetta all years)
Door Pin Switch / Door Switches
(Note rubber boot) remove door pin switches with a small screwdriver. They CAN be taken apart and blown out with air, and then packed with silicone grease. But its critical the the rubber boot be in place. The rubber boot comes with the switch. It cannot be ordered separately.
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