Dtc Troubleshooting - Honda SH300 2006 Manual

FUEL SYSTEM (PGM-FI)

DTC TROUBLESHOOTING

DTC 1-1 (MAP SENSOR LOW VOLT-
AGE)
1. MAP Sensor System Inspection
Turn the ignition switch ON and engine stop
switch "
Check the MAP sensor with the HDS pocket
tester.
Is about 0 V indicated?
YES
NO
2. MAP Sensor Input Voltage Inspection
Turn the ignition switch "OFF".
Disconnect the sensor unit 5P (Black) connector.
Turn the ignition switch "ON".
Measure the voltage between the sensor unit 5P
(Black) connector of the wire harness side and
ground.
CONNECTION:Yellow/Red (+) – Ground (–)
STANDARD:
Is the voltage within 4.75 – 5.25 V?
YES
NO
3. MAP sensor Input line Open Circuit Inspection
Turn the ignition switch "OFF".
Disconnect the ECM 33P connector.
Check for continuity between the sensor unit 5P
(Black) connector and the ECM 33P connector of
the wire harness side.
CONNECTION:Yellow/Red – No. 6 (Yellow/Red)
STANDARD:
TOOL:
Test probe
Is there continuity?
YES
NO
6-16
".
– GO TO STEP 2.
– Intermittent failure
4.75 – 5.25 V
– GO TO STEP 4.
– GO TO STEP 3.
Continuity
07ZAJ-RDJA110
– Replace the ECM with a new one, and
recheck; refer to Key Registration Proce-
dures (page 23-4)
– Open circuit in Yellow/Red wire.
5P (Black) CONNECTOR
(Wire side of female terminal)
Y/R
33P CONNECTOR
(Wire side of female terminal)
Y/R
5P (Black) CONNECTOR
(Wire side of female terminal)