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Home >> Mercedes Benz >> 2014 >> G550 >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Electrical, Equipment & Instructions -- Testing & Repair -- G-Class (463) >> Testing & Repair >> Preparing test without quiescent current retention unit - AR54.10-P-1030-02P

Preparing test without quiescent current retention unit - AR54.10-P-1030-02P

Fig 1: Identifying Electrical Connection Set (201 589 00 99 00)
G07742146Courtesy of MERCEDES-BENZ USA
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Number Designation
WH58.30-Z-1001-09A Multimeter
  1. Slacken nut on negative battery terminal clip.

    IMPORTANT Do not disconnect the negative terminal clip!

  2. Prepare multimeter (2) for the test using MPECIAL TOOL electrical connection set.
  3. Connect positive test cable (+) to negative battery cable (1).
  4. Switch on multimeter (measuring range in amperes).
  5. Carefully pull up negative battery terminal clip and at the same time connect negative test cable (-) under terminal clip on negative terminal (3).
    Fig 2: Identifying Battery Cable Connections With Tester
    G07109250Courtesy of MERCEDES-BENZ USA

    IMPORTANT Do not break the circuit when pulling off the negative terminal clip otherwise any existing faults will be erased. Remove the negative terminal clip completely only after the multimeter test cable is firmly connected to the negative terminal.

  6. Route multimeter (2) with measurement cable (6) out of the engine compartment (on models 203, 209)/passenger compartment (on model 463).
Fig 3: Identifying Testing Battery Using Multimeter And Measurement Cable
G07742148Courtesy of MERCEDES-BENZ USA