Triumph Rocket 3 GT 2021 - Page 753

715
Pinpoint Tests
Test
Result
Action
1
Check engine ECM part number is
correct for the motorcycle.
OK
Proceed to test 2
Incorrect
Replace engine ECM with
correct part and proceed
to test 3
2
Check that the calibration is correct for
the motorcycle, using the diagnostic
software.
OK
Proceed to test 3
Incorrect
Update calibration using
diagnostic software,
proceed to test 3
3
Clear fault code, check for normal
operation.
OK
Proceed to test 4
Fault still
present
Action complete - quit test
Contact Triumph service
Fuel Pump Short Circuit to Ground or Open Circuit
Fault
Code
Possible cause
Action
P1628
Fuel pump - short circuit to
ground or open circuit
View and note diagnostic tool freeze frame
data if available.
Make sure pump is fitted correctly and all
connectors are secure
Disconnect Fuel pump relay and proceed to
pinpoint test 1:
Pinpoint Tests
Test
Result
Action
1
Check terminal and cable integrity:
- Fuel pump relay pin 3
- Fuel pump relay pin 5
- Fuel level subharness connector pin 6
- Fuel level subharness connector pin 5
- Fuel pump plate subharness
connector pin 5
- Fuel pump plate subharness
connector pin 5
- Fuel pump pin 1
- Fuel pump pin 2
OK
Proceed to test 2
Faulty
Rectify fault, proceed to
test 4