Triumph Rocket 3 GT 2021 - Page 672

644
Coolant Temperature Sensor
Fault
Code
Possible cause
Action
P011B
Engine coolant temperature sensor
correlation error with intake air
temperature sensor
View and note diagnostic software
freeze frame data if available
View and note diagnostic software
sensor data
Make sure sensor connector is secure
Disconnect ECM and proceed to
pinpoint test 1
P0115
Engine coolant temperature sensor
open circuit or short circuit to 5 Volt
sensor supply
P0112
Engine coolant temperature sensor
short circuit to ground
P0125
Engine coolant temperature sensor
signal low - not reaching temperature
required for closed loop fuel control
P050C
Engine coolant temperature sensor
signal high - too warm for cold start
conditions
Pinpoint Tests
Test
Result
Action
1
Check cable and terminal integrity:
- Engine ECM pin B20
- Engine ECM pin B12
- Coolant Temperature Sensor pin 1
- Coolant Temperature Sensor pin 2
OK
Proceed to test 2
Faulty
Rectify fault, proceed to
test 6
2
Check cable for short circuit:
- Engine ECM pin B20 to ground
OK
Proceed to test 3
Short
Circuit
Locate and rectify wiring
fault, proceed to test 6
3
Check cable continuity:
- Engine ECM pin B20 to sensor pin 1
- Ground to sensor pin 2
OK
Proceed to test 4
Open
Circuit
Locate and rectify wiring
fault, proceed to test 6