Code Enable Criteria

WARNING: This page is about a different car, the 2002 Isuzu Trooper. However, it is still accessible from the selected car via links, so may be relevant.

Following conditions must be met for DTC diagnostic test to run:

Engine is running.
No Throttle Position (TP) sensor and Manifold Absolute Pressure (MAP) sensor DTCs are set.
No MAF frequency DTCs are set.
System voltage is between 11.5 and 16.0 volts.