Page 325 of 1082
15-490000-00
(2) CAN communication flow chart
Splice pack Wiring harness Location
S101 Floor wiring (LH) Under fuse & relay box in engine compartment
S102 Floor wiring (RH) Inside of right fender
S201 Main wiring Behind meter cluster (cowl cross member)
S202 Main wiring Behind meter cluster (cowl cross member)
S205 Floor wiring (LH) Under driver's door scarf
Page 348 of 1082
01-24
8. ELECTRIC SYSTEM
Start motor assemblyBattery
Converts the chemical energy to the
electrical energy and supplies power to the
corresponding electric units when starting
the engine.
B+ wiringAlternator
Charges the battery and supplies power to
each electric unit by converting the
mechanical energy to the electrical energy.
Page 394 of 1082
03-4
2. SYSTEM LAYOUT
Fuel tank assy
Fuel tank strap assy
Heat shield assy
Sub sender assy
Main fuel pump assy
Fuel filler assy
Fuel filler cap assy
Feed tube assy
Return tube assy 1.
3.
4.
5.
6.
7.
8.
9.
10.Suction tube assy
Harness wiring assy
Fuel pump plate cover
O-ring
clamp
Nut
Nut
Screw 11.
12.
13.
14.
20.
21.
22.
23.
Page 427 of 1082

08-4
Problem Possible Cause Action
Coolant
level is too low
Coolant
temperature is
too high
2. INSPECTION
Leak from the radiator
Leak from the coolant auxiliary tank
Leak from the heater core -
-
-
Leak from the water inlet cap
Leak from the thermostat housing -
-Reconnect the hose or replace the
clamp
Change the hose -
- Leak from the coolant hose connections
Damaged coolant hose -
-
Change the gasket
Change the water pump -
- Leak from the water pump gasket
Leak from the water pump internal seal -
-
Tighten the bolts to the specified
torque
Change the cylinder head gasket -
- Incorrect tightening torque of the cylinder
head bolts
Damaged cylinder head gasket -
-Change the water inlet cap gasket
Change the thermostat sealing -
-
Coolant leakage (Coolant level is low)
Improper coolant mixture ratio
Kinked coolant hose -
-
-Add coolant
Check the coolant concentration
(Anti-freeze)
Repair or replace the hose -
-
-
Defective thermostat
Defective water pump
Defective radiator
Defective coolant auxiliary tank or tank
cap -
-
-
-Change the thermostat
Change the water pump
Change the radiator
Change the coolant auxiliary tank or
tank cap -
-
-
-Change the radiator
Change the coolant auxiliary tank
Change the heater -
-
-
Cracks on the cylinder block or
cylinder head
Clogged coolant passages in the
cylinder block or cylinder head -
-Change cylinder block or cylinder
head
Clean the coolant passage -
-
Clogged radiator core -
Replace the sensor or repair the
related wiring - Improper operation of cooling fan -Clean the radiator core -
Defective temperature sensor or faulty
wiring -Replace the cooling fan or repair the
related circuit -
Page 428 of 1082
08-52112-01
Problem Possible Cause Action
Coolant
temperature is
too low
Thermostat is stuck open -
Replace the cooling fan or repair the
related circuit -
Improper operation of cooling fan -
Replace the sensor or repair the
related wiring -
Defective temperature sensor or faulty
wiring -Change the thermostat -
Page 442 of 1082

09-6
Item How to check DTC set value / Action
Output current
B terminal current
Rotor coil
resistance
L terminal voltage
3. INSPECTION
1) Alternator
Output Test ▶
Disconnect the cable connected to the B
terminal on the alternator. Connect one
end of the ammeter to the B terminal and
the other end to the cable connected to
the B terminal.
Measure the maximum output value.
(Maintain the engine speed between
2,500 and 3,000 rpm.)
(Turn the headlamp and all the electrical
switches on.) 1.
2.Pass: If the measured current
is 45 A or higher.
Fail: If the measured current is
less than 45 A.
Check the current of the B
terminal. -
-
-
Move the gear selector lever to the neutral
position.
Maintain the engine speed at 2,500 rpm
with the vehicle unloaded.
(Turn all the electrical switches off.) 1.
2.Open circuit: If the measured
current is 5 A or higher. -
Disconnect the negative cable from the
battery.
Remove the B terminal and turn off the
ignition switch.
Measure the resistance between the L
and F terminals with an ohmmeter. 1.
2.
3.Pass: If the measured
resistance is between 3 and
6Ω.
Faulty rotor coil or slip ring: If
the measured resistance is
less than 3Ω or greater than
6Ω. -
-
Connect the B terminal wiring.
Measure the voltage with the engine
running. 1.
2.
Specification: 12.5V to 14.5V
Faulty IC regulator or field
coil: If the measured voltage
is 14.5V or higher. -
-
Disconnect the negative cable from the battery.
Connect the negative cable again after connecting the ammeter. -
-
Page 443 of 1082

09-71452-01
Troubleshooting ▶
Item Cause Action
Overcharged batteryDefective alternator voltage regulator Replace
Defective voltage detection wiring Repair or replace
Discharged batteryLoose alternator drive belt
just the belt tension or
replace
Poor connection of related circuit or open
circuitRetighten the loose
connection or repair
open circuit
Defective alternator voltage regulator Replace
Terminated battery Replace
Defective ground Repair
Charge warning lamp does
not come on when turning on
ignition switch with engine
stoppedDefective alternator voltage regulator Replace
Open circuit in charge warning lamp, fuse
or wiringReplace or repair the
charge warning lamp or
fuse
Defective ignition switch Replace
Defective ground of alternator circuit Repair
Charge warning lamp does
not go off after starting
engineDefective alternator voltage regulator Replace
Corroded or worn battery cable Repair or replace
Loose alternator drive belt
Adjust the belt tension or
replace the belt
Defective wiring harness Repair or replace
Page 448 of 1082
09-12
Battery
It converts the chemical energy to the
electrical energy and supplies power to the
corresponding electric units when starting the
engine.
1. OVERVIEW
The charge system is designed to supply electrical energy to the vehicle while driving, and supplies a
constant direct current voltage by converting mechanical rotational movement to electrical energy. The
voltage regulator on the back of the alternator controls the generated voltage in all rotating ranges and
adjusts the system voltage according to the electric load and ambient temperature change.
Body ground
B+ wiringAlternator
The alternator charges the battery and
supplies power to each electric unit by
converting the mechanical energy to the
electrical energy.