52 Battery Voltage Out of Range

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Description

The PCM internally monitors ignition voltage on Circuit 439.

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Code Parameters

Information Flag 52 will set if:

  • Battery voltage at the PCM is greater than 17 volts .
  • Battery voltage at the PCM is less than 11 volts .
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Diagnostic Aids

  • When attempting to diagnose an intermittent problem, use the Scan Tool to review supplemental diagnostic information. The supplemental data can be used to duplicate a problem. Select MALF History from Scan Tool EC menu.
  • Check the tightness of the female terminal grip with a spare male terminal.
  • The engine must meet the flag setting conditions in order to diagnose the code.

NOTE: Information flags should be used for diagnostic purposes only. They do not necessarily indicate component malfunction/failure.

  • Information Flag 52 can set if all accessories are on for extend idling periods. This does not indicate a problem.
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