| Fault Code | Possible cause | Action |
| P0118 | Open circuit, or short circuit to battery+ | View & note diagnostic tool "freeze frame" data if available. View & note diagnostic tool "sensor" data. Ensure sensor connector is secure. Disconnect ECM and proceed to pinpoint test 1 |
| P0117 | Short circuit to ground | Disconnect sensor and proceed to test 6 |
Pinpoint tests
| Test | Result | Action |
| 1 Check cable and terminal integrity: - ECM pin A09 - ECM pin A07 | OK | Proceed to test 2 |
| Faulty | Rectify fault, proceed to test 7 | |
| 2 Check resistance value: - ECM pin A09 to ECM pin A07 (Temperature dependent,-see below) | OK | Disconnect temp sensor and proceed to test 6 |
| Open circuit | Disconnect sensor and proceed to test 3 | |
| Short circuit | Disconnect temp sensor and proceed to test 4 | |
| 3 Check cable continuity: - ECM pin A09 to sensor pin 1 - ECM pin A07 to sensor pin 2 | OK | Proceed to test 5 |
| Open circuit | Locate and rectify wiring fault, proceed to test 7 | |
| 4 Check cable for short circuit: - ECM pin A09 to ECM pin A07 | OK | Proceed to test 5 |
| Short circuit | Locate and rectify wiring fault, proceed to test 7 | |
| 5 Check sensor resistance: - Sensor pin 1 to sensor pin 2 (Temperature dependent,-see below) | OK | Proceed to test 7 |
| Faulty | Renew temp sensor, proceed to test 7 | |
| 6 Check cable for short circuit: - ECM pin A09 to ground | OK | Proceed to test 7 |
| Short circuit | Locate and rectify wiring fault, proceed to test 7 | |
| 7 Reconnect harness, clear fault code and run engine to verify fault cleared | OK | Action complete - quit test |
| Fault | Contact Triumph service |
Circuit diagram
Resistance data under typical conditions:
- Warm engine: 200 to 400Ω
- Cold engine:
- 20°C ambient — 2.35 to 2.65KΩ
- -10°C ambient — 8.50 to 10.25KΩ
