Checking the Ground Terminals: Verification

HINT: After the repair it is necessary to check that the fault has been rectified. 

Fig 1: Identifying Ignition OFF

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• Ignition off.
• Control unit disconnected.
• Switch off all battery loadings such as entrance lighting and radio.

  Connect an ohmmeter between the battery negative lead and test box 14.

  Additional information 

  • To connect the test box, see Connecting the Driver Information Module (DIM) Test Box
  • For information on signals and additional values, see Driver Information Module (DIM) Signal Description .
  Fig 2: Breakout Box

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  Fig 3: Identifying Ohmmeter

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The ohmmeter should display approximately 0. 

• OK 

  VERIFIED:  Troubleshooting has been completed.

• NOT OK 

  Refer to Information