Communication Line With Test; Harness - Honda NSS250S Manual

Honda S Matic System (NSS250A)

COMMUNICATION LINE WITH TEST

HARNESS

INSPECTION
• If the meter display blinks "–", perform the fol-
lowing inspection.
• Before starting troubleshooting, check for loose
or poor contacts on the following connectors,
then recheck the "–" blinking.
– Combination meter 28P (Gray) connector
– PCM 33P (Black) connector
1. Failure Reproduction
Inspect the combination meter power/ground
line inspection (page 22-10).
Is the combination meter normal?
YES
NO
2. Communication Line Continuity Inspection
Remove the screen garnish (page 3-18).
Connect the test harness 33P to the PCM 33P
(Black) connector (page 6-17).
TOOL:
ECM test harness 33P
Disconnect the combination meter 28P (Gray)
connector (page 22-10).
Check the continuity between the combination
meter 28P connector and test harness 33P of the
wire side
CONNECTION: A32 – Orange/blue
Is there continuity?
YES
NO
3. Communication Line Short Circuit Inspection
Check the continuity between the combination
meter 28P connector of the wire side and
ground.
CONNECTION: Orange/blue – Ground
Is there continuity?
YES
NO
24-50
maxiscooter-club.ru
– GO TO STEP 2.
– Open circuit in the combination meter
power/ground line
070MZ-MCA0100
– GO TO STEP 3.
– Open circuit in Orange/blue wire
– Short circuit in Orange/blue wire
– Replace the combination meter with a
known good one, and recheck.
28P CONNECTOR
(Wire side/female terminals)
Orange/blue
(A32)
TEST HARNESS 33P
28P CONNECTOR
(Wire side/female terminals)
Orange/blue