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Home >> Mercedes Benz >> 2000 >> ML430 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Electrical System - Body -- 163 Chassis >> Self-Diagnostic System >> Radio mute circuit, testing electrical system, radio (RD) - AD82.60-P-6000-11A

Radio mute circuit, testing electrical system, radio (RD) - AD82.60-P-6000-11A

HAND-HELD TESTER Scope of test Measuring instrument/ Test connection Operation/Requirement Specified value
  • Possible cause/Remedy
1.0  Radio (A2) or radio and navigation operating unit (APS) (A2/29) 
Radio mute circuit through telephone system (phone)
8 (A.8) BRIDGE 3 (A.3) Remove radio or operating unit
Do not disconnect couplings Carry out test at coupling A Radio: ON 
Radio switches to mute, PHONE  appears in display
  • Cables
  • Radio or APS radio and navigation operating unit
  • Telephone system