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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Locks And Vehicle Access - Diagnostic Information And Procedures (1 Of 2) >> Diagnostic Information and Procedures >> DTC B1038 >> Component Testing

Component Testing

Static Test

  1. Ignition OFF, disconnect the harness connector at the A23D Front Side Door Latch-Driver.
  2. With the door unlatched, test for 725 Ω to 740 Ω between the signal terminal 2 and ground terminal 3
    • If not within the specified range, replace the A23D Front Side Door Latch-Driver.
  3. With the door latched, test for 1450 Ω to 1480 Ω between the signal terminal 2 and ground terminal 3
    • If not within the specified range, replace the A23D Door Latch Assembly-Driver.