Conditions for Clearing the DTC
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- The VCIM powers the button assembly through the keypad supply voltage circuit for 11.5 ms, turns the power off, then waits for 50 ms and sees a voltage value less than 1.8 volts on this circuit.
- A history DTC clears after 50 malfunction free ignition cycles.
- The VCIM receives the clear DTC command from the scan tool.