Diagnostic Fault Information
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The diagnostic Fault Information table identifies each circuit that makes up an electrical subsystem and the associated circuit faults. DTCs and symptoms are listed in the table for all circuit fault modes. This information can be used to diagnose an electrical fault, or as a quick visual aid showing how the different symptoms and DTCs apply for the subsystem being diagnosed.
Even though all the DTCs and symptoms are shown in this table it does not mean they will all be diagnosed in the same procedure.
An example table from an ECT procedure:
Diagnostic Procedure Instructions
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| ECT Sensor Signal | P0117 | P0118 | P0118 | P0125 P0128 |
| ECT Low Reference | P0118 | P0118 | P0125 P0128 |