Honda CB900F Service Manual page 113

Connect th e spe ed se nso r 3P co nnec t o r.
SPEED SENS OR
~~~~~~~C : : O NNECTOR
Di sconn ect t he ECM co nne ct o rs.
Con ne ct th e test harness to the wire harness
co n nect ors.
Support the motorcycle securely and p lace the
rear w hee l off th e ground .
Shift t he tran sm iss ion into ge ar.
Measure th e vo lta ge at t he te st harness t ermi-
nals w it h th e ignition switc h is ON w hile slo wly
t urn ing th e rear whe el by hand.
CONNECTION: Pink/Green 1+) - Ground H
-s-
STANDARD: Repeat 0 to 5V
Ab no rm al
Normal
FUEL SYSTEM (Programmed Fuel Injection)
Open or short circuit in Pink/Gr een wi re of the
m ain w ire harn ess
Repl ace th e ECM w it h a new o ne, an d in spect it
ag ain
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