Honda NSS250S Manual page 668

Honda S Matic System (NSS250A)
DTC 29-1 (Movable drive face position
sensor low voltage)
• Movable drive face position sensor malfunction
can be detected after starting the engine.
• Before starting troubleshooting, check for loose
or poor contacts on the following connectors,
then recheck.
– Movable drive face position sensor 2P (Black)
connector
– Ratio control motor 2P (Black) connector
– PCM 21P (Black) connector
• When removing the movable drive face position
sensor, perform the Honda S Matic System initial
setting procedure (page 24-61).
1. Movable Drive Face Position Sensor System
Inspection
Turn the ignition switch ON and engine stop
switch " ".
Check the movable drive face position sensor
shaft with HDS pocket tester.
Is about 0 V (low voltage) indicated?
YES
NO
2. Movable Drive Face Position Sensor Installation
Inspection
Turn the ignition switch OFF.
Remove the movable drive face position sensor
(page 24-51).
Check if the slot of the movable drive face posi-
tion sensor and sensor shaft are aligned.
Is the position sensor installed correctly?
YES
NO
3. Movable Drive Face Position Sensor Resistance
Inspection 1
Measure the resistance at the movable drive face
position sensor 3P connector of the sensor side.
CONNECTION: A – B
STANDARD:
Is the resistance within 0 – 6.0 k Ω (20 ° C/68 ° F)?
YES
NO
24-24
maxiscooter-club.ru
– GO TO STEP 2.
– • Intermittent failure
• Loose or poor contact of the connec-
tor
– GO TO STEP 3.
– Install the movable drive face position
sensor correctly, then GO TO STEP 7.
B – C
A – C
0 – 6.0 kΩ (20°C/68°F)
– GO TO STEP 4.
– Faulty movable drive face position sen-
sor
Align
3P CONNECTOR
(Sensor side/male terminals)
B
B
A
A
C
C