P0642, P0643, P06A6 - 5 V Sensor Circuit A
P0642, P0643, P06A6 - 5 V Sensor Circuit A - Fault - CM8; CR8; CS8; DR5; DS5; HF8; HG8; HJ8; HK8; HL8; LG1; LGX; LJ2; LK2; LL1; PB1; PJ1; PJZ; PM1; PR1; PRB; PRC; PS1; PSB; PSC; PX1; PXB; PXC; PY1; PYB; PYC
Fault Code | Possible cause | Action |
|---|---|---|
P0642 | 5V Sensor Circuit A - reference voltage low | View and note diagnostic software 'freeze-frame' data if available. Disconnect engine ECM and proceed to pinpoint test 1: |
P0643 | 5V Sensor Circuit A - reference voltage high | |
P06A6 | 5V Sensor Circuit A - reference voltage out of range |
Subheading - Pinpoint Test
Pinpoint Tests
P0642, P0643, P06A6 - 5 V Sensor Circuit A - Pinpoint Test - LG1; LGX; LL1
Test | Result | Action | |
|---|---|---|---|
1 | Check cable and terminal integrity: - Engine ECM pin A32 | OK | Disconnect sensor and proceed to test 2 |
Faulty | Rectify fault, proceed to test 5 | ||
2 | Check cable for short circuit: - Engine ECM pin A32 to ground | OK | Proceed to test 3 |
Short circuit | Locate and rectify wiring fault, proceed to test 5 | ||
3 | Check cable continuity: - Engine ECM pin A32 to throttle position sensor connector pin 5 | OK | Proceed to test 4 |
Open circuit | Locate and rectify wiring fault, proceed to test 5 | ||
4 | Check cable for short circuit: - Engine ECM pin A32 to Engine ECM pin A20 - Engine ECM pin A32 to Engine ECM pin A08 - Engine ECM pin A32 to Engine ECM pin A21 | OK | 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 | ||
Subheading - Circuit Diagram
Circuit Diagram
P0642, P0643, P06A6 - 5 V Sensor Circuit A - Circuit Diagram - LG1; LGX; LJ2; LK2; LL1
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