Triumph Daytona 955i, Service Manual

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9 FUEL SYSTEM/ENGINE MANAGEMENT
FUEL INJECTORS
Fault Code Possible cause
Action
P0201/02/03
Injection system fault — Injector 1/2/3
View & note diagnostic tool `freeze frame'
—
Misfire indicates open circuit data if available.
—
Flooding indicates short circuit
Ensure relevant injector connector is
secure. Disconnect ECM and proceed to
pinpoint test 1
P1201/02/03
Open or short circuit — Injector 1/2/3
P1205/06/07
Short circuit to — Injector 1/2/3
Disconnect relevant injector and proceed
to pinpoint test 5
Pinpoint Tests
Test
Result
Action
1 Check cable and terminal integrity:
OK Proceed to test 2
—
ECM pin 2
Faulty
Rectify fault, proceed to test 7
—ECMpin30
— ECM pin 31
2 Check resistance value:
15.5 to 16.3Q
Disconnect relevant injector and proceed to
— ECM pin 1 to ECM pin 2 (injector 1)
test 3
— ECM pin 1 to ECM pin 31 (injector 2) Open circuit
Proceed to test 4
— ECM pin 1 to ECM pin 30 (injector 3)
Short circuit
Disconnect relevant injector and proceed to
test 5
3 Check cable for short circuit:
OK
Proceed to test 7
—
ECM pin 2 to earth
Short. circuit Locate and rectify wiring fault, proceed to
—
ECM pin 31 to earth test 7
— ECM pin 30 to earth
4 Check cable continuity:
OK Proceed to test 6
— ECM pin 1 to relevant injector pin 2 Open circuit
Locate and rectify wiring fault, proceed to
— ECM pin 2 to injector 1 pin 1
test 7
— ECM pin 31 to injector 2 pin 1
— ECM pin 30 to injector 3 pin 1
5 Check cable for short circuit:
OK Proceed to test 6
— ECM pin 1 to ECM pin 2 (injector 1)
Short circuit Locate and rectify wiring fault, proceed to
— ECM pin 1 to ECM pin 31 (injector 2) test 7
— ECM pin 1 to ECM pin 30 (injector 3)
6 Check relevant injector resistance:
15.5 to 16.3Q
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
OK Action complete — quit test
run engine to verify fault cleared
Fault still present Contact Triumph service
ECM
Circuit Diagram
Fusebox
Main
Power
Fuel Injectors
8
Relay
NK
1 2 3
a a
}
N^ N> N'-
K i > r
7^2
K
z
K
z
O N Engine
Control
Module
9.60