µ
µ
´No.Circuits Protected No. No. Amps. Circuits Protected
CONT INUED
Amps.
Amps. Circuits Protected
1
2
3
4
5Left Headlight Low
(Rear Defroster Coil)
Left Headlight Hi
Small Light
Right Headlight Hi 6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
21
22
23
20 A
20 A
40 A
40 A
15 A
30 A
40 A
40 A
40 A
40 A
100 A
50 A
50 A Cooling Fan
Not Used
Horn, Stop
Rear Defroster
Back Up, ACC
Hazard
VSA Motor
VSA
OP 1
OP 2
Heater Motor
Battery
Not Used
BIG1Main
Power Window Main
15 A
(30 A) 10 A
15 A
10 A 15 A
7.5 A 15 A
20 A
(20 A) Right Headlight Low
Back Up
FI ECU (ECM/PCM)
Condenser fan
(FR Fog Light)
Fuses
T aking Care of t he Unexpect ed
333
UNDER-HOOD FUSE/RELAY BOX
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The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more informa-
tion. The emissions control systems are
designed and certif ied to work
together in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Acura replacement parts or their
equivalent f or repairs. Using lower
quality parts may increase the
emissions f rom your vehicle.
The exhaust emissions controls
include three systems: PGM-FI,
ignition timing control, and three
way catalytic converter. These three
systems work together to control the
engine’s combustion and minimize
the amount of HC, CO, and NOx that
comes out the tailpipe. The exhaust
emissions control systems are
separate f rom the crankcase and
evaporative emissions control
systems.
The PGM-FI system uses sequential
multiport f uel injection. It has three
subsystems: air intake, engine
control, and f uel control. The
powertrain control module (PCM) in
automatic transmission vehicles or
the engine control module (ECM) in
manual transmission vehicles uses
various sensors to determine how
much air is going into the engine. It
then controls how much f uel to inject under all operating conditions.
This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine’s exhaust
to carbon dioxide (CO ), nitrogen
(N ), and water vapor.2
2
Emissions Cont rols
Exhaust Emissions Controls Replacement Parts
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Three Way Catalytic Converter
Technical Inf ormation
345
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