AD80.50-S-5000B | Anti-theft alarm (ATA) diagnosis troubleshooting | 16.9.98 |
MODELS 638.0/1/2
with CODE (FZ4) Anti-theft alarm with interior motion sensor
with CODE (FY1) Anti-theft alarm system with interior motion sensor, towing protection and battery-operated horn
| Location of anti-theft alarm system components | ||
ATA diagnosis, previous knowledge | |||
Troubleshooting | |||
Complaint | Possible cause | Note | Remedy/test step |
Activation by radio frequency remote control (RRC) or by key not possible | Voltage supply | Central locking (CL) in order: | |
Activation by radio frequency remote control (RRC) or by key not possible | Central locking (CL) | Without Code FZ3: | |
Convenience locking system (CLS) | With Code FZ3: | ||
Activation by radio frequency remote control (RRC) not possible | Radio frequency remote control (RRC) | Central locking (CL) in order: | |
Activation by radio frequency remote control (RRC) not possible | Central locking (CL) | Without Code FZ3: | |
Convenience locking system (CLS) | With Code FZ3: | ||
Activation by driver's door lock not possible | Driver's door lock | Without Code FZ3: | |
With Code FZ3: | |||
Activation by driver's door lock not possible | Central locking | Without Code FZ3: | |
Convenience locking system (CLS) | With Code FZ3: | ||
Alarm triggered for no reason | Left door contact switch (S42) Right door contact switch (S43) Left sliding door switch (S114) Right sliding door switch (S115) Tailgate switch (S116) Engine hood switch (S18) Panic alarm button (S97) Overhead control panel sensor (B24) Headliner sensor (B25) Rear window defroster (E57) Rear right window defroster (E60) Rear left window defroster (E61) Inclination sensor | ||
ATA activated, but alarm not triggered | Voltage supply Alarm indicator switching circuit Alarm signal horn |
With Code FZ4 With Code FY1 | |
ATA activated, but alarm not triggered by left front door | Left door contact switch (S42) Voltage supply Cables | ||
ATA activated, but alarm not triggered by door front right | Right door contact switch (S43) Voltage supply Cables | ||
ATA activated, but alarm not triggered by tailgate | Tailgate switch (S116) Voltage supply Cables | ||
ATA activated, but alarm not triggered by engine hood | Engine-hood contact (S18) Voltage supply Cables | ||
ATA activated, but alarm not triggered by sliding door | Sliding-door contact (S114), (S115) Voltage supply Cables | ||
ATA activated, but alarm not triggered by panic switch | Panic switch contact (S97) Voltage supply Cables | ||
ATA activated, but alarm not triggered by ultrasonic interior motion sensor | Overhead control panel sensor (B24) Headliner sensor (B25) Voltage supply Cables | ||
ATA activated, but alarm not triggered by rear-window defroster | Rear window defroster Voltage supply Cables | ||
ATA activated, in vehicles with trailer hitch, alarm not triggered when connector removed | Voltage supply Cables | ||
ATA activated, but alarm not triggered by ignition "ON" | Ignition (terminal 15) Cables | ||
Alarm not triggered by operating interior handle | Contact switch Cables | ||
Alarm triggered by interior motion sensor OFF, ATA however deactivated | Interior motion sensor OFF |
Referenced documents
- ad8020s1001az Central locking (CL) diagnosis contents
- ad8045s1001az Convenience locking system (CLS) diagnosis contents
- ad8050s2000b Anti-theft alarm (ATA) diagnosis previous knowledge
- ad8050s600001b Anti-theft alarm (ATA) test of electrical system hood switch
- ad8050s600003b Anti-theft alarm (ATA) test of electrical system alarm signal horn
- ad8050s600003c Anti-theft alarm (ATA) test of electrical system alarm signal horn
- ad8050s600015b Anti-theft alarm (ATA) test of electrical system left front door contact switch
- ad8050s600016b Anti-theft alarm (ATA) test of electrical system right front door contact switch
- ad8050s600019b Anti-theft alarm (ATA) test of electrical system turn signal alarm circuit
- ad8050s600023b Anti-theft alarm (ATA) test of electrical system panic switch
- ad8050s600024b Anti-theft alarm (ATA) test of electrical system left sliding door
- ad8050s600025b Anti-theft alarm (ATA) test of electrical system right sliding door
- ad8050s600027b Anti-theft alarm (ATA) test of electrical system drive authorization system
- ad8050s600028b Anti-theft alarm (ATA) test of electrical system control module
- ad8050s600029c Anti-theft alarm (ATA) test of electrical system driver door lock
- ad8050s600029d Anti-theft alarm (ATA) test of electrical system driver door lock
- ad8050s600030b Anti-theft alarm (ATA) test of electrical system trailer monitor
- ad8050s600031b Anti-theft alarm (ATA) test of electrical system ignition alarm activation
- ad8050s600032b Anti-theft alarm (ATA) test of electrical system tailgate alarm circuit
- ad8050s600048a ATA test of electrical system interior fuse off switch
- ad8050s600049a ATA test of electrical system overhead control panel sensor
- ad8050s600050a ATA test of electrical system headliner sensor
- ad8050s600051a ATA test of electrical system inclination alarm
- ad8050s600052a ATA test of electrical system rear window defroster
- ad8050s600053a ATA test of electrical system right rear window defroster
- ad8050s600054a ATA test of electrical system left rear window defroster
- gf8050s000102a Anti-theft alarm (ATA), location of components