Triumph Rocket III Classic Service Manual page 333

Fuel System/Engine Management
( Vehicle Speed Sensor - Rocket III Touring
Fault Code Possible cause Action
POSOO Vehicle speed sensor circuit fault
View
& note "freeze frame" data if
available.
View
& note "sensor" data
Ensure sensor connector is secure.
Disconnect ECM and proceed to
pinpoint test 1:-
Pinpoint Tests
Test Result Action
1 Check cable and terminal integrity: OK
Disconnect ambient pressure sensor and
proceed to test 2
- ECM pin A34 Faulty Rectify fault, proceed to test 4
- Instrument pin 3
2 Check cable for short circuit: OK Proceed to test 3
- ECM pin A34 to ground
Faulty Locate and rectify wiring fault, proceed to test
- ECM pin A34 to ECM pin B01
4
- ECM pin A234 to battery
3 Check cable for continuity: OK Renew vehicle speed sensor and proceed to
test 4
- ECM pin A34 to sensor pin 3 Open circuit
Locate and rectify wiring fault, proceed to test
- Sensor pin 2 to ground
4
- Instruments pin 3 to sensor pin 1
4 Reconnect harness, clear fault code and run OK Action complete, quit test
engine.
Circuit Diagram
Fault still present Contact Triumph service
ECM Instruments
~\--Rn
B l 7 1 - - - - u 8
, - - 8Y 3
AM 1 - - - - - KY
Road Speed
Sensor
Service Manual - Rocket
1111
Classic
1
Touring
11.129