Triumph Rocket 3 GT 2021 - Page 765

727
Ambient Air Pressure Sensor
Fault
Code
Possible cause
Action
P2228
Ambient air pressure sensor circuit
short circuit to ground
View and note 'freeze-frame' data if
available.
View and note 'sensor' data.
Make sure sensor connector is secure.
Disconnect the engine ECM and
proceed to pinpoint test 1:
P2226
Ambient air pressure sensor circuit
open circuit or short circuit to 5 Volt
sensor supply
Pinpoint Tests
Test
Result
Action
1
Check cable and terminal integrity:
- Engine ECM pin B23
- Engine ECM pin A5
- Engine ECM pin B18
- Sensor pin 1, 2, 3
OK
Disconnect ambient
pressure sensor and
proceed to test 2
Faulty
Rectify fault, proceed to
test 4
2
Check cable for short circuit:
- Engine ECM pin B18 to Engine ECM pin
B23
- Engine ECM pin B18 to Engine ECM pin
A5
- Engine ECM pin B23 to Engine ECM pin
A5
OK
Proceed to test 3
Short
Circuit
Locate and rectify wiring
fault, proceed to test 4
3
Check cable for continuity:
- Engine ECM pin B23 to sensor pin 1
- Engine ECM pin A5 to sensor pin 2
- Engine ECM pin B18 to sensor pin 3
OK
Renew ambient pressure
sensor, proceed to test 4
Open
Circuit
Locate and rectify wiring
fault, proceed to test 4
4
Reconnect harness, clear fault code and
run engine.
OK
Action complete - quit
test
Fault
still
present
Contact Triumph service