| Fault Code | Possible cause | Action |
| P0335 | Crankshaft sensor system fault | View & note diagnostic tool ‘freeze frame’ data if available. Ensure sensor is fitted correctly and connector is secure. Disconnect ECM and proceed to pinpoint test 1 |
Pinpoint tests
| Test | Result | Action |
| 1 Check terminal and cable integrity: - ECM pin A13 - ECM pin A14 | OK | Disconnect sensor and proceed to test 2 |
| Faulty | Rectify fault, proceed to test 6 | |
| 2 Check cable for short circuit: - ECM pin A13 to earth - ECM pin A14 to earth | OK | Proceed to test 3 |
| Short circuit | Locate and rectify wiring fault, proceed to test 6 | |
| 3 Check cable continuity: - ECM pin A14 to sensor pin 1 - ECM pin A13 to sensor pin 2 | OK | Proceed to test 4 |
| Open circuit | Locate and rectify wiring fault, proceed to test 6 | |
| 4 Check cable for short circuit: - ECM pin A13 to ECM pin A14 | OK | Renew crankshaft sensor, proceed to test 6 |
| Short circuit | Locate and rectify wiring fault, proceed to test 6 | |
| 5 Check crank toothed wheel: - Damage to teeth - magnetic debris contamination | OK | Proceed to test 6 |
| Faulty | Clean / renew toothed wheel, proceed to test 6 | |
| 6 Reconnect harness, clear fault code and run engine to verify fault cleared | OK | Action complete - quit test |
| Fault still present | Contact Triumph service |
Circuit diagram
