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Home >> Saturn >> 2007 >> Ion Red Line >> Repair and Diagnosis >> External Pages >> Different car >> Section 218 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC P0724 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the Stop Lamp/TCC Switch.
  2. Ignition ON, connect a test lamp between the TCC Brake Switch/Cruise Control Release Signal circuit terminal B and ground.
    • If the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the ECM.
    • If the test lamp does not illuminate, replace the stop lamp/TCC switch.
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