Table of Contents IV Section 7 Rear Brake Drum ............................................................................................ 4-99
Section 8 Parking Brake System.......................................................................................4-106Part V Electric System & AccessoryChapter 1 Starting and Charging System......................................................................... 5-1
Section 1 Starting System (MR479Q, MR479QA, MR481QA) ...................................... 5-1
Section 2 Charging System (MR479Q, MR479QA, MR481QA) .................................... 5-3
Chapter 2 Combination Instrument System..................................................................... 5-7
Section 1 Wiring diagram of Combination Instrument and Location of Multi-pin Plug-in Terminal5-7
Section 2 Malfunction Symptom Table and Troubleshooting ......................................... 5-10
Chapter 3 Wiper and Washer System............................................................................... 5-21
Section 1 Wiper and Washer System Inspection ........................................................... 5-21
Section 2 Replacement and Adjustment ........................................................................ 5-23
Chapter 4 Light System...................................................................................................... 5-26
Section 1 Light System Introduction ............................................................................... 5-26
Section 2 Light System Malfunction Inspection ............................................................. 5-28
Section 3 Headlamp Replacement ................................................................................. 5-34
Section 4 Front Fog Lamp Replacement ...................................................................... 5-35
Section 5 Rear Combination Lamp Replacement .......................................................... 5-36
Section 6 High-mounted Stop light Replacement .......................................................... 5-36
Section 7 Front Reading Lamp Replacement ................................................................ 5-37
Section 8 Rear Reading Lamp Replacement ................................................................. 5-37
Section 9 License Plate Lamp Replacement ................................................................. 5-37
Chapter 5 Audio System..................................................................................................... 5-38
Section 1 Audio System Description .............................................................................. 5-38
Section 2 Audio System Connector Terminal Layout ..................................................... 5-40
Section 3 Audio System Inspection ................................................................................ 5-41
Section 4 Audio System Replacement ........................................................................... 5-52
Chapter 6 SRS (Supplemental Restraint System)............................................................ 5-54
2-16......Inspect ......Replace7.5 15 22.5 30 37.5 45 52.5 60 67.5 75
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5System Inspection itemX1000km
YearBraking
SystemBrake reservoir level
FunctionClearance between brake drum and brake liningBrake shoe sliding part and brake lining wearBrake drum wear and damage
Brake lining wear
Brake disc wear and damage
DamageFastening and damage of attachmentAbnormal noise at a jointNoise from joint,damage to arm and
shock absorber fluid leak and damageAbnormal noise at fixtureBrake
BoosterMaster brake cylinder,brakecylinder and brakecalipelBrake liguid leakFunction wear and damageBrake
Drum and
ShoeBrake Disc and
Brake LiningSuspen-sionSystemSpringAttachmentand JointSuspensionArm and
Shock
Absorber
Electri-
cal
SystemEngine
Body
and
Acces-
soryIgnition System
BatteryWiring Harnee and ClipLightingComblned InstrumentHorn,Wiper and
Washer
Defrost and
Power Door Lock
Engine
General
StatusDoor and Trunk LockHood
Seat
OthersStarting performance,abnormal noise,idle and acceleration
Valve clearance
Oil leakSpark plug working status
Lgnition time
Distributor air gap
Distributor cap condition
ConnectionFastening and damage of jointsFunction
Function
Function
FunctionLock FunctionFastening abnormal noise and damageSeat and seat belt status
LubricationUsage and Maintenance of MK Series - Maintenance Category and Content of MK Sedano
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Chapter 3 Fuel SystemSection 1 Check Fuel System PressureOn-board inspection
1. Check the operation of the fuel pump.
(1) Connect the positive and the negative of the battery to
appropriate connector sockets of the fuel pump (see Figure 3-1).
Attention: Do not start the engine.
If there is pressure present, you will hear that the fuel is flowing.
If there is no pressure present, check the fusible cutout, fuse, EFI
open-circuit relay, fuel pump, ECM (Electronic Control Module) and
circuit joint.
(2) Turn the ignition switch to "OFF".
2. Check the pressure of the fuel.
(1) Check whether the battery voltage is more than 12V.
(2) Disconnect the negative wiring cable from the battery.
(3) Mount a pressure gauge on the fuel input pipe
(see Figure 3-2).
(4) Connect the negative terminal of the battery.
(5) Measure the fuel pressure.
Fuel oil pressure: 265-304kPa
If the pressure is low, check the fuel pipe and connection,
fuel pump, and fuel filter. If the pressure is too high,
replace the regulator.
(6) Start the engine. Measure the fuel pressure at idle speed. The
fuel pressure is 265-304KPa. If the pressure is unsatisfactory, checkFigure 3-1
Figure 3-3 Figure 3-2Fuel SystemCheck Fuel System Pressure3-15the fuel pump, pressure regulator, and injector, and replace if necessary.
(7) After shutting down the engine, check the fuel pressure and
keep the specified pressure for about 5 minutes. The fuel pressure is:
147KPa.
3. The fuel oil pressure regulator (DR) (see Figure 3-3).
Mounting position: On the distributing pipe for fuel.
Faults: Too low or too high fuel pressure, or hard to start.
General causes: Using poor fuel for a long time results in: 1.
strainer blocked; 2. serious leakage caused by particles and impurities.
Other reasons: Man-made mechanical damage, etc.
Maintenance precautions: During maintenance: 1. Never impact the diaphragm element with high pressure
gas; 2. Never clean it with aggressively corrosive liquid; 3. No distortion caused by external force.
Easy measuring method: For the system with oil return, connect a pressure gauge for the fuel on the suction
pipe, start the engine, and run at idle speed. Now, the fuel pressure in the engine should be about 260KPa; pull out
the vacuum pipe of the fuel pressure regulator, and the pressure should be 300KPa approximately.Battery
T conector
Hose
Hose
Fuel Inlet Pipe
Fuel Pipe
Conector -
Starting and Charging System-
Starting System5-23. WiringII. Starter assembly replacement (MR479Q, MR479QA, MR481QA)1. Remove starter assembly
(1) Disconnect starter connector.
(2) Remove nuts, disconnect starter cable.
(3) Remove 2 bolts and starter assembly.
2. Install starter assembly
Installation should be conducted in reversed direction of removal
Torque:
Bolt 37N.m
Wire harness 9. 8N.m (1) Check that connecting wire between positive pole of storage battery and starter must be firm and reliable,
outside shroud must be in good condition, so as to prevent generating electric spark and causing fire.
(2) Check whether wire is conducted, whether sheath is broken, if wiring harness is damaged, replace wiring
harness.Please Refer to "MK WIRING DIAGRAM"
II. Charging system inspection1. Check battery working voltage
(1) After having driven the vehicle and in the case that 20 minutes
have not passed after having stopped the engine,turn the ignition
switch ON and turn on the electrical system (headlight,blower
motor) for 60 seconds to remove the surface charge.
(2) Turn the ignition switch OFF and turn off the electrical
systems. Then measure the battery voltage between the nega
tive and positive terminals of the battery.
Standard voltage: 12.5-12.9V at 20°C
Hint:
If the voltage is less than specification, charge the battery.
2. Check battery terminals, fuse box and fuse
(1) Check that the battery terminals are not loose or corroded.
(2) Check if fuse box and fuse for continuity.
3. Inspect drive belt
(1) Check the belt for excessive wear, frayed cords etc.
Hint:
If any defect has been found, replace the drive belt.
Cracks on the rib side of a belt are considered acceptable. If the
belt has chunks missing from the ribs, it should be replaced.
(2) Check that the belt fits properly in the ribbed grooves.
Hint:
Check with your hand to confirm that the belt has not slipped out
of the groove on the pulley.
4. Check alternator wiring
Check that the wiring is in good condition.Automobile Starting, Power Supply System -Charging system5-45. Listen for abnormal noises from alternator
Check that there is no abnormal noise from the alternator while the engine is running.
6. Inspect charge warning light circuit
Turn the ignition ON. Check that the charge warning light comes on. Start the engine. Check that the light
goes off.
Hint:
If the light does not work as normal, troubleshoot the charge warning light circuit.
Automobile Starting, Power Supply System -Charging system5-57. Inspect charging circuit without load
(1) If a battery/starter tester is available, connect the tester to the
charging circuit as per instructions.
(2) If a tester is not available, connect an ammeter and voltmeter
to the charging circuit as follows.
a. Disconnect to the wire from terminal B of the alternator
and connect it to the negative (-) pole of the ammeter.
b. Connect the positive (+) pole of the ammeter to terminal B
of the alternator.
c. Connect the positive (+) pole of the voltmeter to terminal B
of the alternator.
d. Ground the negative (-) pole of the voltmeter.
(3) Check the charging circuit
With the engine running from idle to 2,000 rpm, check the reading on the ammeter.
Standard amperage: 10A or less
Standard voltage: 12.9V-14.9V
8. Inspect charging circuit with load
(1) With the engine running at 2,000 rpm, turn on the high beam headlights and place the blower switch at "4".
Check the reading on the ammeter.
Standard amperage: 20A or more
(2) Hint:
If the ammeter reading is less than standard amperage, repair the alternator.
If the battery is fully charged, the indication value will sometimes be less than standard amperage.III. Alternator inspection1. Inspection of alternatorPullyStatorBearingBearing spacerRotorBearing cover
Bearing
Wire clipBrush
Washer
Rectifier end frameRectifier frameInsulator at wiring endBrush holderBrush holder coverBack end coverIC RugulatorAmpere Meter
BatteryVoltage MeterAlternatorDisconnect the Cable
of B terminal
Chapter 2 Combination Instrument SystemSection 1 Wiring diagram of Combination Instrument and
Location of Multi-pin Plug-in Terminal1. Schematic circuit diagram of combination instrument (see the figure)
2. Distribution of digital combination instrument plug-in unit terminalsCombination Instrument System -Wiring diagram of Combination Instrument and Location of Multi-pin Plug-in Terminal5-7combination instrument
combination instrument
combination instrument
Combination Instrument System -Wiring diagram of Combination Instrument and Location of Multi-pin Plug-in Terminal5-8Please Refer to "MK WIRING DIAGRAM"Wiring diagram of Combination Instrument