Triumph Rocket III Service Manual page 230

Fuel System/Engine Management
Fuel Pump Relay
Fault Code Possible cause
Action
P1231 Fuel pump relay open circuit, or Check if pump runs briefly when
short circuit to ground
ignition is switched on.
Ensure fuel pump relay connector
is secure.
Disconnect ECM and proceed to
pinpoint test 1:-
P1232
Short circuit to baltery+ Disconnect fuel pump relay and
proceed to pinpoint test 4
Pinpoint Tests
Test Result
Action
1 Check cable and terminal integrity: OK
Disconnect fuel pump relay and proceed
to test 2
- ECM pin B02
Faulty Rectify fault, proceed to test 5
2 Check cable for short circuit: OK
Proceed to test 3
- ECM pin B02 to earth Short circuit
Locate and rectify wiring fault, proceed to
test 5
3 Check cable continuity:
OK Proceed to test 4
- ECM pin B02 to fuel pump relay pin 4 Open circuit
Locate and rectify wiring fault, proceed to
- Fuel pump relay pin 6 to EMS relay
test 5
pin 8
4 Check cable for short circuit: OK Proceed to test 5
- ECM pin B02 to ECM pin A20
Short circuit Locate and rectify wiring fault, proceed to
test 5
5 Reconnect harness, clear fault code and OK
Action complete - quit test
run diagnostic tool function test to verify
fault cleared
Fault still present Contact Triumph service
Circuit Diagram
EMS Relay
Fuel Pump Relay
ECM
1 6
4 8
:==~_'K==~~----,~:=EJ
Fuse Box
Fuse 6
11.76
Service Manual - Rocket III