Fault Code | Possible cause | Action |
P0031 | Oxygen sensor heater circuit short circuit to ground or open circuit | View & note 'freeze frame' data if available. View & note 'sensor' data. Ensure sensor connector is secure. Disconnect ECM and proceed to pinpoint test 1: |
P0032 | Oxygen sensor heater circuit, short circuit to battery | Disconnect oxygen sensor and proceed to pinpoint test 4: |
Pinpoint Tests
Test | Result | Action |
1. Check cable and terminal integrity: ECM pin 814 | OK | Disconnect oxygen sensor and proceed to test 2 |
Faulty | Rectify fault, proceed to test 5 | |
2. Check cable for short circuit: ECM pin B 14 to ground | OK | Proceed to test 3 |
Short circuit | Locate and rectify wiring fault, proceed to test 5 | |
3. Check cable continuity: ECM pin B 14 to sensor pin 4 ECM pin A06 to sensor pin 3 | OK | Proceed to test 5 |
Open circuit | Locate and rectify wiring fault, proceed to test 5 | |
4. Check cable for short circuit: ECM pin B 14 to ECM pin A06 | OK | Renew oxygen sensor and proceed to test 5 |
Short circuit | Locate and rectify wiring fault, proceed to test 5 | |
5. Reconnect harness, clear fault code and run engine. Check adaption status | OK | Action complete, quit test |
Fault still present | Contact Triumph service |