Honda NSS250S Manual page 686

Honda S Matic System (NSS250A)
METER DISPLAY "F" 29 BLINK:
Movable drive face position sensor
• Movable drive face position sensor malfunction
("F" 29 blinks) can be detected after starting the
engine.
• Before starting troubleshooting, check for loose
or poor contacts on the following connectors,
then recheck the "F" blinking.
– Movable drive face position sensor 3P (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 Installation
Inspection
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
2. 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
24-42
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– GO TO STEP 2.
– 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 3.
– Faulty movable drive face position sen-
sor
Align
3P CONNECTOR
(Sensor side/male terminals)
B
B
A
A
C
C