Triumph Rocket III Classic Service Manual page 296

Fuel System/Engine Management
Coolant Temperature Sensor - Rocket III and Classic
Fault Code Possible cause Action
POl18 Open circuit, or short circuit to View 8. note diagnostic tool 'freeze
battery+
frame' data if available.
View 8. note diagnostic tool 'sensor'
data.
Ensure sensor connector is secure.
Disconnect ECM and proceed to
pinpoint test 1:-
POl17 Short circuit to ground
Disconnect sensor and proceed to test
6:-
Pinpoint Tests
Test Result Action
1 Check cable and terminal integrity: OK Proceed to test 2
- ECM pin A09
Faulty
Rectify fault, proceed to test 7
- ECM pin A07
2 Check resistance value: OK Disconnect temp sensor and proceed to test 6
-
ECM pin A09 to ECM pin A07 Open circuit Disconnect sensor and proceed to test 3
(Temperature dependent - see below)
Short circuit
Disconnect temp sensor and proceed to test 4
3 Check cable continuity: OK Proceed to test 5
- ECM pin A09 to sensor pin 1
Open circuit
Locate and rectify wiring fault, proceed to test
- ECM pin A07 to sensor pin 2
7
4 Check cable for short circuit:
OK
Proceed to test 5
- ECM pin A09 to ECM pin A07 Short circuit Locate and rectify wiring fault, proceed to test
7
5 Check sensor resistance: OK Proceed to test 7
- Sensor pin 1 to sensor pin 2 Faulty Renew temp sensor, proceed to test 7
(
(Temperature dependent - see below)
6 Check cable for short circuit: OK Proceed to test 7
- ECM pin A09 to ground Short circuit Locate and rectify wiring fault, proceed to test
7
7 Reconnect harness, clear fault code and run OK Action complete - quit test
engine to verify fault cleared
Fault still present Contact Triumph service
11.92
SelVice Manual - Rocket 1111 Classic I Touring