Code Enable Criteria
WARNING: This page is about a different car, the 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, 2001 Chevrolet Monte Carlo, and 2001 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
Following criteria must be met to enable DTC:
- Voltage supplied to module must be 9-16 volts.
- DTCs U1300, U1301 and U1305 must not be current.
- Ignition switch position requires serial data communication to occur.