Honda BF40D Mode D'emploi page 472

• Injector Inspection
1) Injector power line open-circuit inspection
a. Turn the combination switch OFF. Disconnect the
injector 2P connectors
b. Turn the combination switch ON. Measure the
voltage between the main wire harness side No.2
(Yellow/Black) terminal of the respective injector 2P
connectors ,
6 7
ground.
INJECTOR 2P CONNECTOR
MAIN WIRE HARNESS SIDE
6
IGP2
(Yellow/Black)
VIEWED FROM THE TERMINAL SIDE
Is there the battery voltage?
YES - Go to "2) Injector GND line short-circuit
inspection."
NO - Check the No.6 fuse and the main relay (P.
18-17, 18). If there is no problem, replace the
main wire harness.
5-77
, and .
6 7 8
and and the engine
8
7 8
472
2) Injector GND line short-circuit inspection
• Turn the combination switch OFF. Disconnect the
ECM connector B . Check for continuity between
10
the main wire harness side No.1 terminal of the
respective injector 2P connectors
and the engine ground.
8
INJECTOR 2P CONNECTOR
MAIN WIRE HARNESS SIDE
7
6
INJ2
INJ1
(Red)
(Brown)
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Repair short in the main wire harness
between the ECM and the injector.
NO - Go to "3) Injector GND line open-circuit
inspection."
, and
6 7
8
INJ3
(Blue)