Triumph Rocket III Classic Service Manual page 280

Fuel System/Engine Management
Fuel Injectors - Rocket III and Classic
Fault Code Possible cause Action
P0201l02/03
Injection system fault - Injector
1/2/3
View
&
note diagnostic tool 'freeze
- Misfire indicates open circuit
frame' data if available.
- Flooding indicates short circuit
Ensure relevant injector connector is
secure.
Disconnect ECM and proceed to
pinpoint test 1:-
Pinpoint Tests
Test
Result Action
1 Check cable and terminal integrity: OK
Proceed to test 2
- ECM pin B05 Faulty Rectify fault, proceed to test 7
- ECM pin B06
- ECM pin B17
2
12.5Q
to 14.0Q Proceed to test 3
Check resistance value:
- ECM pin A20 to ECM pin B05 (injector
1)
- ECM pin A20 to ECM pin B06 (injector 2)
- ECM pin A20 to ECM pin B 17 (injector 3)
Open circuit Disconnect relevant injector and proceed to
test 4
Short circuit Disconnect relevant injector and proceed to
test 5
3 Check cable for short circuit to ground:
OK
Proceed to test 7
- ECM pin B05 to earth Short circuit Locate and rectify wiring fault, proceed to test
- ECM pin B06 to earth
7
- ECM pin B17 to earth
4 Check cable continuity: OK
Proceed to test 6
- ECM pin A20 to relevant injector pin 2 Open circuit Locate and rectify wiring fault, proceed to test
(
- ECM pin B05 to injector 1 pin 1
7
- ECM pin B06 to injector 2 pin 1
- ECM pin B 17 to injector 3 pin 1
5 Check cable for short circuit to supply box: OK Proceed to test 6
- ECM pin A20 to ECM pin B05 (inj
1)
Short circuit Locate and rectify wiring fault, proceed to test
- ECM pin A20 to ECM pin B06 (inj 2)
7
- ECM pin A20 to ECM pin B 17 (inj 3)
6 Check relevant injector resistance:
12.5Q
to 14.0Q
Proceed to test 7
- Injector pin 1 to injector pin 2 Faulty Renew relevant injector, 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
(
11.76
Service Manual - Rocket
1111
Classic
1
Touring