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:

No DTCs related to Throttle Position (TP) sensor, Vehicle Speed Sensor (VSS), MAP sensor, EGR pintle position sensor, Engine Coolant Temperature (ECT) sensor, Misfire DTCs or automatic transmission DTCs are stored.
Engine coolant temperature is 140°F (60°C) or more.
Ignition voltage between 11.5 and 16.0 volts.
Vehicle speed is more than 15 MPH.
A/C clutch status is unchanged.
Torque Converter Clutch (TCC) status is unchanged.