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P058A Powertrain

Battery Monitor Module Performance

Battery Monitor Module Performance: the component is electrically intact but its response does not match the command. The module reports battery current, voltage and temperature for charge management.

Affected components

  • Battery monitor module

Common causes

  • High likelihood: Module reads with drift
  • Low likelihood: Module software outdated, reflash may resolve
  • Low likelihood: Supply voltage outside specification

Diagnostic notes

  • The malfunction indicator lamp may illuminate

Sources

Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.

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