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Home >> Suzuki >> 2009 >> XL7 Premium, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 73 (Charging System) >> Diagnostic Information and Procedures >> DTC B1424 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2008 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the TDM.
  2. Probe the ground circuit terminal 3 with a test lamp that is connected to B+. The test lamp should illuminate.
    • If the test lamp does not illuminate, then test the ground circuit for an open/high resistance.
  3. Ignition ON. measure the voltage between the B+ circuit terminal 1 and the ground circuit terminal 3. Verify that the difference between the voltage at the TDM connector and the voltage at the battery terminals is less than 1 volt.
    • If greater than the specified value, test the B+ circuit for a short to ground or an open/high resistance.
  4. If all circuits test normal, replace the TDM.
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