Inlet Air Temperature Sensor; Pinpoint Tests - Triumph Thunderbird Service Manual

Fuel System/Engine Management
Inlet Air Temperature Sensor
Fault Code Possible cause Action
POl13
Open circuit, or short circuit to battery View 8. note diagnostic software
positive 'freeze frame' data if available.
View 8.
note diagnostic software
'sensor' data.
Ensure sensor connector is secure.
Disconnect ECM and proceed to
pinpoint test 1:
POl12 Short circuit to ground
Disconnect ECM and sensor and
proceed to pinpoint test 6:
Pinpoint
Tests
Test Result Action
1 Check cable and terminal integrity: OK Proceed to test 2
- ECM pin All Faulty Rectify fault, proceed to test 7
- ECM pin B20
2 Check resistance value: OK Proceed to test 6
- ECM pin A 11 to ECM pin B20
Open circuit Disconnect temp 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 A 11 to sensor pin 1 Open circuit
Locate and rectify wiring fault, proceed to
- ECM pin B20 to sensor pin 2
test 7
4 Check cable for short circuit: OK Proceed to test 5
- ECM pin A 11 to ECM pin B20 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 air temperature sensor, proceed to
<Temperature dependent - see below)
test 7
6 Check cable for short circuit: OK Proceed to test 7
- ECM pin A 11 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
10.48
Service Manual - Thunderbird