Anti-theft alarm (ATA [EDW]) Diagnosis troubleshooting

AD80.50-P-3000D

Anti-theft alarm (ATA [EDW]) Diagnosis troubleshooting

1.2.12

Anti-theft alarm (ATA [EDW]) Diagnosis previous knowledge

AD80.50-P-2000D



After receiving a complaint regarding "false alarms", perform troubleshooting.

AD80.50-P-5000D



Before checking for proper function, call up and print out the alarm source memory.

The alarm source memory overview can be called up and printed out in Xentry Diagnostics under the following function view:

- "Overall vehicle"

- "Security and locking system"

- "Anti-theft alarm system (ATA)"

- "Actual values"

- "Alarm sources"

- "Overview"

Call up the individual data records for specific details.

AD00.00-P-2000-04A



Check for proper function only in regard to the present complaint.

Operational check

Test step/scope of testing

Operation/requirement

Specified value/note

Possible cause/remedy

1

Alarm actuation via towing sensor

(with code (882) Interior monitoring (with ATA only))

 Remove transmitter key

 Close all doors and trunk lid or rear-end door

 Lock vehicle with transmitter key

 Lift vehicle on one side after approx. 3 min.

ATA [EDW] function display flashes continuously

The alarm should trigger as soon as one wheel is lifted off the ground.

Troubleshooting:

AD80.50-P-5000D

2

Deactivate towing sensor

(with code (882) Interior monitoring (with ATA only))

 Remove transmitter key

 Momentarily actuate tow-away button (in OCP button group)

 Close all doors and trunk lid or rear-end door

 Lock vehicle with transmitter key

 Lift vehicle on one side after approx. 3 min.

LED in tow-away protection button illuminates for approx. 2 s

ATA [EDW] function display flashes continuously

The alarm should not trigger when the vehicle is lifted.

Troubleshooting:

AD80.50-P-5000D

3

Alarm actuation via interior protection

(with code (882) Interior monitoring (with ATA only))

 Close side windows, if necessary sliding roof or panoramic roof

 Remove transmitter key

 Open driver, close rotary tumbler on door lock and lean driver door against door frame

 Close all other doors and trunk lid or rear-end door

 Lock vehicle with transmitter key

 Open driver door after approx. 3 minutes and move arm up and down above driver seat.

When the vehicle is completely closed the interior protection has a higher sensitivity.

ATA [EDW] function display flashes continuously

An alarm is triggered.

 With code (889) Keyless Go, do not open driver on door handle, otherwise the vehicle can be unlocked the ATA [EDW] deactivated.

Troubleshooting:

AD80.50-P-5000D

4

Deactivate interior protection

(with code (882) Interior monitoring (with ATA only))

 Close side windows, if necessary sliding roof or panoramic roof

 Remove transmitter key

 Momentarily actuate interior protection button (in button group before OCP):

 Open driver door, close rotary tumbler on door lock and lean driver door against door frame

 Close all other doors and trunk lid or rear-end door

 Lock vehicle with transmitter key

 Open driver door after approx. 3 minutes and move arm up and down above driver seat.

LED in interior protection button flashes for approx. 2 s

ATA [EDW] function display flashes continuously

The alarm should not be triggered by movement in the passenger compartment.

 With code (889) Keyless Go, do not open driver on door handle, otherwise the vehicle can be unlocked the ATA [EDW] deactivated.

Troubleshooting:

AD80.50-P-5000D

5

Glass breakage sensor
(with code (882) Interior monitoring (only with ATA))

 Remove door lining on tailgate

Model 166:

AR72.20-P-3520GQ

 Remove transmitter key

 Close door lock rotary tumbler on rear-end door

 Close all doors

 Lock vehicle with transmitter key

 Disconnect connector on glass breakage sensor approx. 1 min. from rear window

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000D

6

Alarm triggering via driver door

 Open driver door window

 Remove transmitter key

 Switch off Interior protection (with code (882) Interior monitoring (only with ATA [EDW]))

 Close all doors and trunk lid or rear-end door

 Lock vehicle with transmitter key

 Open driver door with inside door handle after approx. 15 s

 With code (885) Increased theft protection, the driver door can only be opened with the emergency key.

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000D

7

Alarm triggering via passenger door

 Open front passenger door side window

 Remove transmitter key

 Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

 Close all doors and trunk lid or rear-end door

 Lock vehicle with transmitter key

 Open front passenger door with inside door handle after approx. 15 s

 With code (885) Increased theft protection, function check is not possible.

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000D

8

Alarm triggering via left rear door

 Open left rear door side window

 Remove transmitter key

 Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

 Close all doors and trunk lid or rear-end door

 Lock vehicle with transmitter key

 Open left rear door with inside door handle after approx. 15 s

 With code (885) Increased theft protection, function check is not possible.

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000D

9

Alarm triggering via right rear door

 Open right rear door side window

 Remove transmitter key

 Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

 Close all doors and trunk lid or rear-end door

 Lock vehicle with transmitter key

 Open right rear door with inside door handle after approx. 15 s

 With code (885) Increased theft protection, function check is not possible.

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000D

10

Alarm triggering via rear-end door

 Remove transmitter key

 Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

 Close doors

 Enter cargo area and close rear-end door

 Lock vehicle with transmitter key

 Open rear-end door via emergency actuation after approx. 15 s

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000D

11

Alarm triggering via engine hood

 Open driver door window

 Remove transmitter key

 Switch off Interior protection
(with code (882) Interior monitoring (only with ATA [EDW]))

 Close all doors and trunk lid or rear-end door

 Lock vehicle with transmitter key

 Open engine hood through open side window after approx. 15 s

ATA [EDW] function display flashes continuously

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000D

12

Trigger panic alarm

(with code (763) Radio remote control with panic switch)

 Close all doors and trunk lid or rear-end door

 Lock vehicle with transmitter key

 Press "Panic button" on transmitter key

An alarm is triggered.

Troubleshooting:

AD80.50-P-5000D

13

Siren self-alarm

(with code (882) Interior monitoring)

 Expose alarm siren until it is accessible

Model 166:

AR80.50-P-9840GQ

Model 246:

AR80.50-P-9840NKB

 Remove transmitter key

 Close all doors and trunk lid or rear-end door

 Lock vehicle with transmitter key

 Disconnect connectors from alarm siren after approx. 15 s

The alarm is very loud due to the proximity to the alarm siren. Wear ear protection.

An acoustic alarm is triggered.

 To terminate the alarm reconnect the plug connector and then unlock the vehicle with the transmitter key.

Troubleshooting:

AD80.50-P-5000D