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Home >> Mercedes Benz >> 2000 >> ML430 >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Anti-Theft & Central Locking System -- 163 Chassis >> Self-Diagnostic System >> CL test of electrical system CL interior switch - AD80.20-P-6001-01GH

CL test of electrical system CL interior switch - AD80.20-P-6001-01GH

HAND-HELD TESTER Scope of test Measuring instrument/Test connection Operation/Requirement Specified value
  • Possible cause/Remedy
1.0  Interior central locking switch not operated 
HHT actual value
HAND-HELD TESTER Central locking switch (S21s10) not operated. OFF Value in order:
==>1.1
Value not in order:
  • Rear window defroster switch (S21s9)
  • Central locking switch (S21s10)
  • Cables SHORT-CIRCUIT TO GROUND
1.1  Interior central locking switch operated 
HHT actual value
HAND-HELD TESTER Central locking switch (S21s10) operated. ON Value not in order:
==>1.2
1.2  Rear window defroster switch operated 
HHT actual value
HAND-HELD TESTER Rear window defroster switch (S21s9) operated. ON

Value in order:


  • Central locking switch (S21s10)
  • Cable

Value not in order:


  • Cable OPEN-CIRCUITGROUND
  • All-Activity Module (AAM) (N10)