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Home >> GMC >> 2007 >> Acadia SLT, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1209 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> DTC B1424 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2013 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine running, accessories OFF, measure and record the battery voltage at the battery terminals.The voltage should be between 12.6 and 15.0 V.
  2. Ignition OFF, disconnect the harness connector at the theft deterrent module (TDM).
  3. Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1 minute. Test for less than 5 Ω between the ground circuit terminal 3 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  4. Ignition ON , verify a test lamp illuminates between the B+ circuit terminal 1 and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  5. If the circuits test normal, replace the TDM.
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