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Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 149 (Hybrid Engine Control System) >> Diagnostic Information and Procedures >> DTC P2534 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect PIM connector X1.
  2. Ignition ON, test the voltage on the ignition 1 circuit, between connector X1 terminal 20 and ground. The voltage should be within 0.5V of actual battery voltage.
    • If not within the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the PIM.
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