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08-4
RODIUS 2007.07
0000-00
ENGINE ELECTRIC DEVICES
2. FASTENER TIGHTENING SPECIFICATIONS
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08-5
ENGINE ELECTRIC DEVICES
RODIUS 2007.07
0000-00
1. CHARGING SYSTEM OPERATION
Alternators use a new type of regulator that incorpo-rates a diode trio. A Delta stator, a rectifier
bridge, and a rotor with slip rings and brushes are electrically similar to earlier alternators.
A conventional pulley and fan are used. There is no test hole.
1) CHARGING TIME REQUIRED
The time required to charge a battery will vary depending upon the following factors:
▶ Size of Battery
A Completely discharged large heavy-duty battery required more than twice the
recharging time as a completely discharged small passenger car battery. -
▶ Temperature
A longer time will be needed to charge any battery at -18°C (0°F) than at 27°C
(80°F). When a fast charger is connected to a cold battery, the current accepted
by the battery will be very low at first. The battery will accept a higher current rate as the
battery warms. -
▶ Charger Capacity
A charger which can supply only 5 amperes will require a much longer charging period
than a charger that can supply 30 amperes or more. -
▶ State-of-Charge
A completely discharged battery requires more than twice as much charge as a onehal
f
charged battery. Because the electrolyte is nearly pure water and a poor conductor in a
completely discharged battery, the current accepted by the battery is very low at first.
Later, as the charging current causes the electrolyte acid content to increase, the
charging current will likewise increase. -
2. STARTING SYSTEM OPERATION
The engine electrical system includes the battery, the ignition, the starter, the alternator, and all
the related wiring. Diagnostic tables will aid in troubleshooting system faults. When a fault is
traced to a particular component, refer to that component section of the service manual. The
starting system circuit consists of the battery, the starter motor, the ignition switch, and all the
related electrical wiring. All of these components are connected electrically.
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08-6
RODIUS 2007.07
0000-00
ENGINE ELECTRIC DEVICES
3. IGNITION SYSTEM OPERATION
This ignition system does not use a conventional distributor and coil. It uses a crankshaft
position sensor input to the Engine Control Module (ECM).
The ECM then determines Electronic Spark Timing (EST) and triggers the electronic ignition
system ignition coil.
This type of distributorless ignition system uses a “waste spark” method of spark
distribution. Each cylinder is paired with the cylinder that is opposite it (2.3L DOHC: 2 - 3 or 1 -
4, 3.2L DOHC: 1 - 6 or 2 - 5 or 3 - 4).
The spark occurs simultaneously in the cylinder coming up on the compression stroke and in
the cylinder coming up on the exhaust stroke.
The cylinder on the exhaust stroke requires very little of the available energy to fire the spark
plug.
The remaining energy is available to the spark plug in the cylinder on the compression stroke.
These systems use the EST signal from the ECM to control the EST.
The ECM uses the following information: Engine load (mass air flow sensor, manifold ai
r
pressure sensor).
Engine coolant temperature.
Intake air temperature.
Crankshaft position.
Engine speed (rpm).
1) Electronic Ignition System Ignition Coil
The Electronic Ignition (EI) system ignition coil is located on the cylinder head cover.
The double ended coils re ceive the signal for the ECM which controls the spark advance.
Each EI system ignition coil provides the high voltage to two spark plugs simultaneously;
3.2L DOHC
T1/1: cylinder 2 and 5
T1/2: cylinder 3 and 4
T1/3: cylinder 1 and 6
The EI system ignition coil is not serviceable and must be replaced as an assembly.
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08-7
ENGINE ELECTRIC DEVICES
RODIUS 2007.07
0000-00
4. STARTING AND CHARGING SYSTEM
(GASOLINE ENGINE) CIRCUIT
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09-3
ENGINE CONTROL SYSTEM
RODIUS 2007.07
0000-00
1522-16ENGINE CONTROL SYSTEM
1. ENGINE DATA DISPLAY TABLE
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09-4
RODIUS 2007.07
0000-00
ENGINE CONTROL SYSTEM
2. FASTENER TIGHTENING SPECIFICATIONS
1) TEMPERATURE VS RESISTANCE
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SPECIAL SERVICE TOOLS
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SPECIAL SERVICE TOOLS
GENERAL
1. ENGINE ASSEMBLY .............................
2. ENGINE INTAKE SYSTEM ...................
3. ENGINE LUBRICATION SYSTEM .........
4. ENGINE COOLING SYSTEM ................3
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9
10
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