P1231, P1232 - Fuel Pump Relay
P1231, P1232 - Fuel Pump Relay - Fault - DR5; DS5; HG8; HJ8; HK8; HL8; LG1; LGX; LL1
Fault Code | Possible cause | Action |
|---|---|---|
P1231 | Fuel pump relay short circuit to ground or open circuit | Check if pump runs briefly when ignition is switched on Ensure fuel pump relay connector is secure Disconnect Engine ECM and proceed to pinpoint test 1 |
P1232 | Fuel pump relay short circuit to battery positive | Disconnect fuel pump relay and proceed to pinpoint test 4 |
Subheading - Pinpoint Test
Pinpoint Tests
P1231, P1232 - Fuel Pump Relay - Pinpoint Test - LG1; LGX; LJ2; LK2
Test | Result | Action | |
|---|---|---|---|
1 | Check cable and terminal integrity: - Engine ECM pin A12 - Right hand switch housing pin 2 | OK | Disconnect fuel pump relay and proceed to test 2 |
Faulty | Rectify fault, proceed to test 5 | ||
2 | Check cable for short circuit to ground: - Engine ECM pin A12 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 A12 to fuel pump relay pin 1 - Right hand switch housing pin 2 to fuel pump relay pin 2 | 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 A12 to Right hand switch housing pin 2 | OK | Proceed to test 5 |
Short circuit | Locate and rectify wiring fault, proceed to test 5 | ||
5 | Reconnect harness, clear fault code and run diagnostic software function test to verify operation of fuel pump. | OK | Action complete - quit test |
Fault still present | Contact Triumph service | ||
Subheading - Circuit Diagram
Circuit Diagram
P1231, P1232 - Fuel Pump Relay - Circuit Diagram - LG1; LGX
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