Triumph Rocket 3 GT 2021 - Page 734

696
Engine ECM detects Inertial Measurement Unit (IMU) circuit malfunction
Fault
Code
Possible cause
Action
P16A1
Engine ECM detects Inertial
Measurement Unit (IMU) circuit
malfunction
View and note 'freeze-frame' data if
available.
Make sure ABS modulator connector
is secure. Proceed to pinpoint test 1:
NOTICE
For this model, the Inertial Measurement Unit (IMU) circuit is incorporated in the ABS
module.
Pinpoint Tests
Test
Result
Action
1
Check cable and terminal integrity.
- Engine ECM pin C25
- Engine ECM pin C24
- ABS modulator pin 2
- ABS modulator pin 4
- ABS modulator pin 10
- ABS modulator pin 11
- ABS modulator pin 18
- Ignition relay pin 5
OK
Disconnect ECM and
proceed to test 2
Faulty
Rectify fault, proceed to
test 6
2
Check cable for short circuit:
- Engine ECM pin C25 to ground
- Engine ECM pin C24 to ground
OK
Disconnect ABS modulator
and proceed to test 3
Short
Circuit
Locate and rectify wiring
fault, proceed to test 5
3
Check cable for short circuit:
- ABS pin 2 to ground
- ABS pin 11 to ground
OK
Proceed to test 4
Short
Circuit
Proceed to test 5
4
Check cable continuity:
- Engine ECM pin C25 to ABS pin 2
- Engine ECM pin C24 to ABS pin 11
- ABS pin 10 to ground
- Fuse box fuse 8 to ABS pin 18
- Ignition Relay Pin 5 to ABS pin 4
OK
Proceed to test 5
Open
Circuit
Locate and rectify wiring
fault, replace relevant fuse
proceed to test 65