LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2017 >> Escalade Base, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Power Door Lock System And Release Systems - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC B252C: Child Security Lock Switch Circuit >> Circuit/System Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the S79D Window Switch-Driver. Ignition ON
  2. Test for greater than 10 V between the signal circuit terminal 10 and ground.
    • If 10 V or less 
    1. Ignition OFF, disconnect the harness connector at the K9 Body Control Module.
    2. Test for infinite resistance between the signal circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
    3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K9 Body Control Module.
    • If greater than 10 V 
  3. Test or replace the S79D Window Switch-Driver.
scientia non olet · About LEMON Manuals