Honda NSS250S Manual page 198

FUEL SYSTEM (PGM-FI)
4. IAT Sensor Line Inspection
Turn the ignition switch OFF.
Disconnect the PCM 33P (Black) connector.
Check the continuity between the PCM 33P and
sensor unit 5P connectors of the wire side.
TOOL:
Test probe
CONNECTION: White/blue – White/blue
Is there continuity?
YES
NO
DTC 12-1 (INJECTOR)
• Before starting the inspection, check for loose or
poor contact on the injector 2P (Gray) connector
and recheck the HDS pocket tester.
1. Injector System Inspection
Erase the DTC's (page 6-16).
Turn the ignition switch ON and engine stop
switch " ", then start the engine and check the
injector with the HDS pocket tester.
Is the DTC 12-1 indicated?
YES
NO
2. Injector Input Voltage Inspection
Turn the ignition switch OFF.
Disconnect the injector 2P (Gray) connector.
Turn the ignition switch ON and engine stop
switch " ".
Measure the voltage between the injector 2P
connector of the wire side and ground.
CONNECTION: Black/white (+) – Ground (–)
Is there battery voltage?
YES
NO
3. Injector Signal Line Open Circuit Inspection
Turn the ignition switch OFF.
Disconnect the PCM 33P (Black) connector.
Check the continuity between the PCM 33P and
injector 2P connectors of the wire side.
TOOL:
Test probe
CONNECTION: Pink/blue – Pink/blue
Is there continuity?
YES
NO
6-44
maxiscooter-club.ru
07ZAJ-RDJA110
– Replace the PCM with a new one, and
recheck.
– Open circuit in White/blue wire
– GO TO STEP 2.
– • Intermittent failure.
• Loose or poor contact on the injector
2P (Gray) connector.
– GO TO STEP 3.
– Open or short circuit in Black/white wire
07ZAJ-RDJA110
– GO TO STEP 4.
– Open circuit in Pink/blue wire
PCM 33P CONNECTOR
(Wire side/female terminals)
White/blue
SENSOR UNIT 5P CONNECTOR
(Wire side/female terminals)
INJECTOR 2P CONNECTOR
(Wire side/female terminals)
Black/white
PCM 33P CONNECTOR
(Wire side/female terminals)
Pink/blue
INJECTOR 2P CONNECTOR
(Wire side/female terminals)
White/blue
Pink/blue