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20.1 Central Lock (CL)   >   13 Diagnosis - Complaint Related Diagnostic Chart

Preparation for Test: 1. Review 21 2. Fuses ok. 3. Voltage supply to AAM is OK (if not OK: see DM, B&A, Vol. 1, 2.2, > 23). 4. RCL system is fully functional. 5. All doors closed. Complaint/Problem Possible cause Test step/Remedy 1) Entire Remote central locking system does not function. All Activity Module (AAM) (N10) (DTC memory) See: 12 Central locking does not function via Remote Central Locking System (RCL) (Transmitter key) Remote Central Locking System All-Activity Module (N10) (DTC memory) See: 13, 12, N10 Central locking does not function via CL switch (S21s10) Switch (CL) (S21s10) All-Activity Module (N10) (DTC memory) 23 1.0 Central locking does not lock vehicle Central locking, all doors lock relay (F1k20) All-Activity Module (N10) (DTC memory) 23 6.0 Left front door and fuel filler flap do not unlock Central locking, RF door and rear doors unlock relay (F1k23) All-Activity Module (N10) (DTC memory) 23 6.0 Right front door, left rear door and right rear door do not unlock Central locking, LF door and fuel filler flap unlock relay (F1k24) All-Activity Module (N10) (DTC memory) 23 6.0 Individual side doors do not lock or unlock Front door: Right front door rotary tumbler microswitch (S87/6) Left front door rotary tumbler microswitch (S87/7) Microswitch (CL) (M14/5s1) (M14/6s1) LF door CL actuating motor M14/6) Rear door: Left rear door rotary tumbler microswitch (S87/2) Right rear door rotary tumbler microswitch (S87/3) Microswitch (CL) (M14/8s1) CL microswitch (M14/9s1) LR door CL actuating motor (M14/8) RR door CL actuating motor (M14/9) All Activity Module (AAM) (N10) 23 2.0 23 4.0 23 5.0 23 3.0 N10 Tailgate does not lock or unlock Rotary tumbler/trunk lid microswitch (S88/1) Microswitch (CL) (M14/7s1) Central locking, tailgate unlock relay (F1k15) Tailgate CL actuating motor (M14/7) All Activity Module (AAM) (N10) 23 7.0 23 8.0 23 6.0 23 9.0 N10 Fuel filler flap does not lock or unlock Filler flap CL actuating motor (M14/10) All Activity Module (AAM) (N10) 23 10.0 N10 No return signal via blinker system when using transmitter key to lock vehicle Control module adaption: "CL return signal" not activated Front doors: Left front door rotary tumbler microswitch (S87/7) Right front door rotary tumbler microswitch (S87/6) Rear doors: Left rear door rotary tumbler microswitch (S87/2) Right rear door rotary tumbler microswitch (S87/3) Tailgate: Rotary tumbler/trunk lid microswitch (S88/1) Side doors: Microswitch (CL) (M14/5s1) Microswitch (CL) (M14/6s1) Microswitch (CL) (M14/8s1) CL microswitch (M14/9s1) Tailgate: Microswitch (CL) (M14/7s1) 11/2, 23 2.0 23 3.0 23 7.0 23 4.0 23 8.0 "Automatic locking" feature does not function Control module adaption: "Automatic Locking when driving" not activated All Activity Module (AAM) (N10) 11/2 N10 1) Observe Preparation for Test, see 22.