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Home >> Cadillac >> 2013 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Electrical System - Hybrid) >> Diagnostic Information and Procedures >> DTC B1325, B1330, B1420, B1424, B1517, C0800, C0895, C0899, C0900, C12E1, C12E2, P0560, P0562, or P0563 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
NOTE:

Use the schematic to identify the following:

  • Control modules the vehicle is equipped with
  • The control modules ground, B+, and Ignition circuit terminal IDs and connectors
  1. Ignition OFF, disconnect the harness connectors at the appropriate control module.
    2. NOTE:

    Some control module ground circuits may require up to 20 minutes to achieve a resistance reading of less than 10 Ω. In most cases the readings will drop below 20 Ω within 1 minute indicating the control modules are going to sleep.

  2. Ignition OFF, scan tool disconnected, open and close the driver door and wait 1 minute. Test for less than 10 Ω between each ground circuit terminal and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. If equipped, verify that a test lamp illuminates between each B+ circuit terminal and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  4. If equipped, ignition ON, verify that a test lamp illuminates between each ignition circuit terminal and ground.
    • If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
  5. If all circuits test normal, replace the control module module.
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