Diagnostic Fault Information
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| ECM B+ | 1* | 1* | - | - |
| ECM Ground | - | 1* | - | - |
| PTLAN + | U0074* | U1818*, U189A | U0074* | - |
| PTLAN - | U0074* | U1818*, U189A | U0074* | - |
| * Other modules/DTCs will set with this fault. 1. Multiple DTCs including U1818 may set, and multiple symptoms including no start may occur |
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