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Circuit/System Testing

WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
  1. With the ignition OFF, disconnect the harness connector at the EBCM, AWD module, and PSCM one at a time. After each disconnect, clear the DTC, cycle the ignition key 3 times, then retest for the DTC. DTC U2099 should reset as current.
    • If the DTC does not reset, replace the last module disconnected.
  2. Ignition OFF, disconnect the harness connector at the BCM.
  3. With all modules disconnected, test for infinite resistance between the data communication enable circuit and ground.
    • If less than infinite resistance, repair the enable circuit for a short to ground.
  4. If all tests normal and DTC is current, replace the BCM.
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