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20.1 Central Lock (CL)   >   12 Diagnosis - Diagnostic Trouble Code (DTC) Memory (AAM)

Preparation for Test 1. Review All-Activity-Module (N10) diagnostics, see AD54.21-P-2000GH 2. All fuses OK. 3. Voltage supply to All-Activity- Module (N10) is OK, 4. Connect the Hand-Held Tester (HHT) to X11/4, according to diagram, see section 0. 4. HHT serial interface is OK, if not see: AD54.21-P-6000-02GH Test equipment; See MBUSA Standard Service Equipment Program Description Brand, model, etc. Digital multimeter Fluke models 23, 77 III, 83, 85, 87 DTC Fault text Possible cause Test step/Remedy (No communication with HHT possible)   Diagnostic line Check HHT serial interface, see AD54.21- P-6000-02GH No fault   No fault recognized In case of complaint: Perform entire diagnostic test in specific system. 23, See 4.11, 13, inWIS See 13.8, 13, inWIS No CAN message: -from engine control module (N3) -from traction system control module (N47) -from instrument cluster (A1) -from transfer case control module (N78) -from trip computer control module (TRIP) (N41) CAN data bus, corresponding control module See: AD54.21-P-6000-03GH AD54.21-P-6000-04GH AD54.21-P-6000-05GH AD54.21-P-6000-06GH AD54.21-P-6000-07GH AD54.21-P-6000-08GH Transponder: -cannot be read -fixed code invalid -fixed code in order but variable code invalid -fixed code valid but not enabled -fault when describing Observe hints on replacing AAM Defective transmitter key Transponder coil (L11) Invalid transmitter key Transmitter key disabled Transponder coil (L11) See: AD54.21-P-6000-03GH Transmitter key. See: see 4.11, 11, in WIS, L11 ATA interior motion sensor/tilt sensor defective No pulse signal when configured Signal cable N41/N10 Trip computer control module (TRIP) (N41) See 13.8, 23, in WIS Central locking signalling contact, driver's door implausible Microswitch (CL) (M14/6s1) 23 4.0 Central locking signalling contact, front passenger's door implausible Microswitch (CL) (M14/5s1) 23 4.0 Central locking signalling contact, tailgate implausible Microswitch (CL) (M14/7s1) 23 8.0 Central locking signalling contact, left rear door implausible Microswitch (CL) (M14/8s1) 23 4.0 Central locking signalling contact, right rear door implausible Microswitch (CL) (M14/9s1) 23 4.0 Transmitter radio signal: -fixed code invalid -fixed code in order but variable code invalid -fixed code valid but not enabled -synchronization not possible Transmitter key Transmitter key not synchronized Transmitter key disabled Wiring, Antenna, N10 Transmitter key See 4.11, 11, in WIS See 4.11, 11, in WIS See 4.11, 23, in WIS