Fault Code | Possible cause | Action |
P0122 P0123 | Throttle position sensor low input voltage (short to ground or open circuit) Throttle position sensor high input voltage (short circuit to sensor supply) | 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 |
Pinpoint tests
Test | Result | Action |
1 Check cable and terminal integrity: - ECM pin A01 - ECM pin A07 - ECM pin A10 | OK | Disconnect sensor and proceed to test 2 |
Faulty | Rectify fault, proceed to test 5 | |
2 Check cable for short circuit: - ECM pin A10 to ground | OK | Proceed to test 3 |
Short circuit | Locate and rectify wiring fault, proceed to test 5 | |
3 Check cable continuity: - ECM pin A01 to sensor pin 1 - ECM pin A07 to sensor pin 2 - ECM pin A10 to sensor pin 3 | OK | Proceed to test 4 |
Open circuit | Locate and rectify wiring fault, proceed to test 5 | |
4 Check cable for short circuit: - ECM pin A10 to ECM pin A01 - ECM pin A10 to ECM pin A07 | OK | Renew throttle position sensor, proceed to test 5 |
Short circuit | Locate and rectify wiring fault, proceed to test 5 | |
5 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
![](https://motoinstruction.ru/img/triumph/7/114416.jpg)