Honda NSS250S Manual page 664

Honda S Matic System (NSS250A)
DTC 6-1 (Ratio Control Motor Drive
Circuit)/DTC 32-1 (Fail Safe Relay
Circuit)
• Before starting troubleshooting, check for loose
or poor contacts on the following connectors,
then recheck.
– Ratio control motor 2P (Black) connector
– PCM 5P (Black) connector
• When removing the movable drive face position
sensor, perform the Honda S Matic System initial
setting procedure (page 24-61).
1. RATIO MOTOR Fuse (30 A) Inspection
Remove the battery cover (page 19-6).
Turn the ignition switch OFF.
Check for blown RATIO MOTOR fuse (30 A).
Is the fuse blown?
YES
NO
2. Ratio
Inspection
Remove the left body cover (page 3-11).
Disconnect the PCM 5P (Black) connector.
Measure the voltage at the PCM 5P connector of
the wire side.
CONNECTION: Red/black (+) – Green (–)
Is there battery voltage?
YES
NO
3. Ratio Control Motor Continuity Inspection
Disconnect the ratio control motor 2P (Black)
connector (page 24-52).
Check the continuity between the PCM 5P and
ratio control motor 2P connectors of wire side.
CONNECTION: Black/white (+) – Black/white (–)
Is there continuity?
YES
NO
24-20
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– Replace the RATIO MOTOR fuse (30 A).
– GO TO STEP 2.
Control Motor Input
– GO TO STEP 3.
– • Open or short circuit in Red/black
wire
• Open circuit in Green wire
Green/red (+) – Green/red (–)
– GO TO STEP 4.
– • Open circuit in Black/white wire
• Open circuit in Green/red wire
RATIO MOTOR FUSE (30A)
Voltage Line
5P CONNECTOR
2P CONNECTOR
(Wire side/female terminals)
Black/white
5P CONNECTOR
(Wire side/female terminals)
Green
Green/red Green/red
Black/white
5P CONNECTOR
(Wire side/female terminals)
Red/
black