Triumph Rocket III Service Manual page 237

Fuel System/Engine Management
Lambda Sensor Heater
Fault Code Possible cause Action
POO31 Lambda sensor heater circuit short View & note '1reeze frame" data if
circuit to ground or open circuit. available.
View & note "sensor" data.
Ensure sensor connector is secure.
Disconnect ECM and proceed to
pinpoint test 1:
POO32 Lambda sensor heater circuit, short Disconnect lambda sensor and
circuit to battery. proceed to pinpoint test 4
Pinpoint Tests
Test Result Action
1 Check cable and terminal integrity: OK Disconnect lambda sensor and proceed to
- Ecm pin 833
test 2
Faulty
Rectify fault, proceed to test 5
2 Check cable for short circuit: OK Proceed to test 3
- ECM pin A33 to ground Short circuit Locate and rectify wiring fault, proceed to
test
5
3 Check cable continuity: OK Proceed to test
5
- ECM pin 833 to sensor pin 3 Open circuit Locate and rectify wiring fault, proceed to
- ECM pin A20 to sensor pin 4
test
5
4 Check cable for short circuit: OK Renew lambda sensor and proceed to test
- ECM pin 833 to ECM pin A20
5
Short circuit Locate and rectify wiring fault, proceed to
test 5
5 Reconnect harness, clear fault code and OK Action complete, quit test
run engine. Check adaption status.
Fault still present Contact Triumph service
Circuit Diagram
EMS Relay Lambda Sensor
1
6
4 8
ECM
K
w
BB
11
KB
A07
Fuse Box
NK
AlO
Fuse6
~.
Service
Manual-
Rocket III
11.83