Acura 1994 Integra Service Manual page 274

ldle Control System
Alternator (ALTI FR Signal
This signals the ECM when the Alternator (ALT) as charging.
D 9 l + )
Inspection ot ALT FR Sign.l.
Connect the tost harness between
the ECM and connectors. Discon-
nect "D"
connector from the
main wire harnoss only, not the
ECM lsee page 11-37).
Turn the ignition switch ON.
Measure voltage between D9 (+ )
terminal and A26 {-}terminal.
Sub{inno s known-good ECM
and redrack. It pro.ctibod volt go
la now availablg, ropllco tha orlg-
inal ECM.
ls there approx. 5 V?
Turn the ignition switch OFF.
Reconnect "D" connector to the
main wire harness,
Start tho engino. Hold the engine
!L3,099 rpm with no load (A/T in
LN] or El position, M/T in neutral)
until the radiator tan comes on,
rhen let it idle.
Measuro voltage between Dg (fl
terminal and 426 (- I terminal.
Does the voltage decrease
when headlights and .ear
delogger are turned on?
Turn ths ignition switch OFF.
ALT FR rignal is OK.
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Voh.go?
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