Diagnostic Aids
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- DTC P0125 is designed to detect a skewed ECT sensor or a faulty thermostat.
- A skewed IAT sensor may cause this DTC to set. The IAT sensor should read near ambient temperature.