P1702, P1703 - Shift Force Sensor Circuit (Triumph Shift Assist)
P1702 - Shift Force Sensor Circuit - Fault - CM8; CR8; CS8; HF8; HG8; HJ8; HK8; HL8; LG1; LGX; LJ2; LK2; LL1; PB1; PJ1; PJZ; PM1; PR1; PRC; PS1; PSC; PX1; PXC; PY1; PYC
Fault Code | Possible Cause | Action |
|---|---|---|
P1702 | Shift force sensor short circuit to ground or open circuit Shift force sensor voltage too low | View and note diagnostic tool 'sensor' data Disconnect engine ECM and proceed to pinpoint test 1: |
P1703 | Shift force sensor short circuit to 5 volt supply Shift force sensor voltage too high | Disconnect engine ECM and proceed to pinpoint test 2: |
Subheading - Pinpoint Test
Pinpoint Tests
P1702 - Shift Force Sensor Circuit - Pinpoint test - G1; LGX; LJ2; LK2; LL1
Test | Result | Action | |
|---|---|---|---|
1 | Check cable and terminal integrity: - Engine ECM pin B21 - Engine ECM pin B18 - Engine ECM pin B23 | OK | Disconnect shift force sensor and proceed to test 2 |
Faulty | Rectify fault, proceed to test 4 | ||
2 | Check cable for short circuit: - Engine ECM pin B21 to Engine ECM pin B23 - Engine ECM pin B18 to Engine ECM pin B23 | OK | Proceed to test 3 |
Short circuit | Locate and rectify wiring fault, proceed to test 4 | ||
3 | Check cable continuity: - Engine ECM pin B21 to sensor pin 1 - Engine ECM pin B23 to sensor pin 2 - Engine ECM pin B18 to sensor pin 3 | OK | Renew shift force sensor and proceed to test 4 |
Open circuit | Locate and rectify wiring fault, proceed to test 4 | ||
4 | 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
P1702 - Shift Force Sensor Circuit - Circuit Diagram - LG1; LGX
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