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Home >> Buick >> 2013 >> Regal GS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Hybrid/EV Control System) >> Diagnostic Information and Procedures >> DTC P2534 or P2535 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition OFF, measure and record the battery voltage at the battery terminals. The battery voltage should stabilize between 12.4 and 12.8V within a few minutes of turning the ignition OFF.
  2. Ignition OFF, disconnect K59 starter generator control module X3 connector.
  3. Ignition ON, test for 8-18V between the K59 starter generator control module X3 connector ignition voltage circuit terminal 10 and ground.
    • If not within the specified range, test the ignition voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal replace the K59 starter generator control module.