Triumph Rocket 3 GT 2021 - Page 1362

1324
ABS Communication (CAN)
Fault
Possible cause
Action
C1088
CAN fault - lost communication
with ABS modules
Disconnect Chassis ECM connectors
and proceed to pinpoint test 1:
Pinpoint Tests
Test
Result
Action
1
Check cable and terminal integrity:
- Keyless ECM pin 13
- Keyless ECM pin 5
- ABS ECM pin 2
- ABS ECM pin 11
OK
Disconnect ABS ECM
connector and proceed to test
4
Faulty
Locate and rectify wiring fault,
proceed to test 6
2
Check cable for short circuit:
- Keyless ECM pin 13 to ground
- Keyless ECM pin 5 to ground
OK
Proceed to test 3
Short circuit
Locate and rectify wiring fault,
proceed to test 6
3
Check cable for short circuit:
- Keyless ECM pin 13 to Keyless
ECM pin 5
OK
Proceed to test 4
Short circuit
Locate and rectify wiring fault,
proceed to test 6
4
Check cable continuity:
- ABS ECM pin 18 to fuse box fuse
8
- ABS ECM pin 10 to ground
- ABS ECM pin4 to Ignition Relay
pin 5
OK
Proceed to test 5
Open circuit
Locate and rectify wiring fault,
proceed to test 6
5
Check cable continuity:
- Keyless ECM pin 5 to ABS ECM
pin 11
- Keyless ECM pin 13 to ABS ECM
pin 2
OK
Proceed to test 6
Open circuit
Locate and rectify wiring fault,
proceed to test 6
6
Check ABS fuse integrity:
- Fuse box, fuse 8
OK
Proceed to test 7
Faulty
Replace blown fuse, proceed
to test 7
7
Reconnect harness, clear fault code
and run engine to verify fault
cleared
OK
Action complete – quit test
Fault still
present
Contact Triumph service