Honda CB900F Service Manual page 122

FUEL SYSTEM (Programm ed Fuel Injection)
Disconnect the ECM connectors .
Connect the test harness to the wire harness
con nectors.
ECU TEST HA RNESS
Measure the resistance at the test harness
term inals.
. - - --{Q}-----,
$
" "".." , , : 1 II§
- 6
Connection : A12
1 -) -
82
(+)
St and ard: 9 - 15 (20'C/GS'F)
Normal
Check for continuity between the test harness
terminal and ground.
Out of range
Continuity
• Open circuit in Black/W h it e and/or Pink/Green wire
• Short circuit in Pink/Green wire
" " " , . CCi!J
"
".
"-, - , . .,,
"
,,-,.
"
"
[:=1
e' - ,
-,i-'-i-,;- ,- ,
- ,TT" ,--,o-ii·-" J
Connecti on: A12 - Ground
Standard: No continuity
5-34
No continuity
Replace the ECM with a new one, and inspect it
again