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Home >> Cadillac >> 2013 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Hybrid/EV Control System) >> Diagnostic Information and Procedures >> DTC P1AC6 or P1AC7 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition OFF, remove the F103 drive motor generator control module sight shield. Refer to Drive Motor Generator Control Module Sight Shield Replacement .
  2. Disconnect the T6 drive motor generator power inverter module connector X1 and the crankshaft position sensor connector.
  3. Test for less than 5 ohms on the crankshaft position low reference circuit, from connector X1 terminal 35 and ground.
    • If greater than the specified value, repair the low reference circuit for an open/high resistance.
  4. Ignition ON, test for 4.8-5.2 V on the crankshaft position signal circuit, from the connector X1 terminal 26 and ground.
    • If less than the specified range, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the T6 drive motor generator power inverter control module.
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