Communication Line With Test; Probe - Honda NSS250S Manual

COMMUNICATION LINE WITH TEST

PROBE

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.
– 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).
Turn the ignition switch OFF.
Disconnect the PCM 33P (Black) connector (page
6-102).
Disconnect the combination meter 28P (Gray)
connector (page 22-10).
Check the continuity between the combination
meter 28P and PCM 33P connector of the wire
side
TOOL:
Test probe
CONNECTION: Orange/blue – 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
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– GO TO STEP 2.
– Open circuit in the combination meter
power/ground line
07ZAJ-RDJA110
– 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.
Honda S Matic System (NSS250A)
28P CONNECTOR
(Wire side/female terminals)
Orange/blue
PCM 33P CONNECTOR
(Wire side/female terminals)
28P CONNECTOR
(Wire side/female terminals)
Orange/
blue
Orange/blue
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