Honda NSS250A Reflex 2001-2007, Manual

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Honda S Matic System (NSS250A)
24-31
4. Shift Switch Signal Line Short Circuit Inspection
Check the continuity between the shift switch 3P
connector of the wire side and ground.
Is there continuity?
YES – • Short circuit in White/blue
• Short circuit in White/yellow
NO – Replace the PCM with a known good
one, and recheck.
DTC 43-1 (Mode select switch)
• Before starting troubleshooting, check for loose
or poor contacts on the following connectors,
then recheck.
– Mode select switch 2P (Black) connector
– PCM 21P (Black) connector
1. Mode Select Switch Continuity Inspection
Remove the inner cover (page 3-27).
Turn the ignition switch OFF.
Disconnect the mode select switch 2P (Black)
connector.
Check the continuity at the mode select switch
2P connector when the mode select switch
pushed.
Is there continuity?
YES – GO TO STEP 2.
NO – Faulty mode select switch
2. Mode Select Switch Input Voltage Line
Inspection
Turn the ignition switch ON and engine stop
switch " ".
Measure the voltage between mode select
switch 2P connector of the wire side and ground.
Is the voltage within 4.75 – 5.25 V?
YES – GO TO STEP 3.
NO – • Open or short circuit in Yellow/black
wire
• Replace the PCM with a known good
one, and recheck.
CONNECTION:
White/blue (+ button) – Ground
White/yellow (– button) – Ground
3P CONNECTOR
(Wire side/female terminals)
White/blue White/yellow
CONNECTION: Yellow/black – Blue/orange
2P CONNECTOR
(Switch side/male terminals)
Blue/
orange Yellow/
black
CONNECTION: Yellow/black (+) – Ground (–)
STANDARD:
4.75 – 5.25 V
Yellow/black
2P CONNECTOR
(Wire side/female terminals)
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