P0704 - Clutch Switch 1 Input Circuit Malfunction

P0704 - Clutch Switch 1 Input Circuit Malfunction - 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

P0704

Clutch switch 1 input circuit malfunction

View and note diagnostic tool freeze frame data if available.

Disconnect Engine ECM and proceed to pinpoint test 1:

Subheading - Pinpoint Test

Pinpoint Tests

P0704 - Clutch Switch 1 Input Circuit Malfunction - Pinpoint Test - LG1; LGX; LJ2; LK2

Test

Result

Action

1

Check terminal and cable integrity:

- Engine ECM pin A06

Ok

Proceed to test 2

Faulty

Rectify fault, proceed to test 5

2

Check cable for short circuit:

- Engine ECM pin A06 to ground

OK

Proceed to test 3

Short circuit

Rectify fault, proceed to test 5

3

Check cable continuity:

- Engine ECM pin A06 to left hand switch housing connector B pin 4

OK

Proceed to test 4

Open circuit

Locate and rectify fault, proceed to test 5

4

Check cable for short circuit:

- Engine ECM pin A06 to A08

- Engine ECM pin A06 to A21

OK

Proceed to test 5

Short circuit

Locate and rectify 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

P0704 - Clutch Switch 1 Input Circuit Malfunction - Circuit Diagram - LG1; LGX

Clutch Switch PPT (LG1 clutch switch)
  1. Left Hand Switch Housing Inline Connector

  2. Engine ECM Connector A

  3. Fuse Box 1

  4. Left Hand Switch Housing