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Home >> Cadillac >> 2006 >> Escalade EXT >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 1260 (Anti-Lock Brake System, Traction Control System & Stability Control System) >> Diagnostic Information and Procedures >> DTC C0899 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Measure and record the voltage at the battery terminals. Observe the scan tool Battery Voltage Signal parameter. Verify that battery terminal voltage and battery voltage signal readings do not differ more than 1 volt.
    • If the difference is more than 1 volt, test the battery positive voltage and ground circuits of the EBCM for an open/high resistance, or replace the EBCM.
  2. Go to Charging System Test .
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