Honda SH300 2006 Manual page 176

FUEL SYSTEM (PGM-FI)
3. Sensor Unit Power Input Line Short Circuit
Inspection
Turn the ignition switch "OFF".
Disconnect the ECM 33P connector.
Check for continuity between the sensor unit 5P
(Black) connector of the wire harness side and
ground.
CONNECTION: Yellow/Red – Ground
STANDARD:
Is there continuity?
YES
NO
4. Engine Stop Relay Line Inspection
Turn the ignition switch "OFF".
Remove the engine stop relay from the relay
connector.
Short the relay connector terminals of the wire
harness side with a jumper wire.
CONNECTION: Red/Green – Black/White
Turn the ignition switch "ON".
Measure the voltage between the ECM 33P con-
nector of the wire harness side and ground.
CONNECTION: No.1 (Black/White) (+) – Ground
TOOL:
Test probe
Does the battery voltage exist?
YES
NO
6-66
No continuity
– Short circuit in the Yellow/Red wire
– Replace the ECM with a new one, and
recheck
(–)
07ZAJ-RDJA110
– • Inspect the engine stop relay coil line
(page 6-68)
• Inspect the engine stop relay conti-
nuity (page 6-67)
• Inspect the bank angle sensor (page
6-73)
– • Open circuit in Red/Green wire
between the engine stop switch and
engine stop relay
• Inspect the engine stop switch (page
22-18).
• Open circuit in Black/White wire
between the engine stop relay and
ECM
SENSOR UNIT 5P
5P (Black)
(Black) CONNECTOR
CONNECTOR
(Wire side of female
terminals)
RELAY CONNECTOR
ENGINE STOP RELAY
33P CONNECTOR
(Wire side of female
terminals)
ECM 33P
CONNECTOR
Y/R
JUMPER WIRE
Bl/W