Checking the 30-supply to the control module

Fig 1: Identifying Ignition OFF

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Fig 2: Disconnecting Control Unit

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• Ignition off
• Control module disconnected.

  Connect a voltmeter between terminals #15 and #16 on the breakout box.

  Fig 3: Breakout Box

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  Fig 4: Identifying Voltage Display

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The voltmeter should read battery voltage. 

• OK 

  Refer to Checking the control module 

• NOT OK 

  Refer to Checking the voltage before the fuse 11