Diagnostic Fault Information
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Always perform the Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
DTC P2070 or P2071
| Circuit | Short to Ground | High Resistance | Open | Short to Voltage | Signal Performance |
|---|---|---|---|---|---|
| IMT Valve Ignition Voltage | P0660, P2078 | P2077 | P0660, P2078 | - | - |
| IMT Valve Ground | - | P2078 | P2078 | - | - |
| IMT Valve Variable Tuning Signal | P0660, P2071 | P0660 | P0660 | none | - |
| IMT Fan Position Signal | P2077 | P2070 | P2078 | P2070, P2078 | P2070, P2071 |