General Information - Repair Instruction1-3Chapter 2 Repair InstructionI. Precautions1. Basic Repair Hint
(1)Operation HintVehicle Protection
Appearance
Safe Operation
Removal and
installation, disas-
semble and inspection
Prepare the tools and
measuring instrument
Removed partsBefore the work, place radiator fascia cloth, fender cloth, seat cover and mat.
Always wear clean uniform
Make sure to wear the helmet and safety shoe
when more than 2 persons work together, be sure to pay mutual attention to the safety.
when it is required to run the engine, you have to pay attention to the ventilation of the workshop.
When handling the high-temperature, rotating, moving and vibrating parts, be careful not to be scalded
or hurt.
When lifting the vehicle, safety stand should be used to support the specified position.
When lifting the vehicle, safety devices should be used.
The diagnosis requires full understanding of the trouble and effective operation.
Before the parts are removed, check the assembly for distortion and damage.
The diagnosis requires full understanding of the trouble and effective operation.
Before the parts are removed, check the assembly for distortion and damage.
If the structure is complicated, notes or marks should made to avoid mistake and impact of the part
function.
If needed, clean the removed parts and reassemble them after careful inspection.
Before the work, prepare the tool fixture, special tools, instrument, oil, workshop cloth and required
parts for replacement.
arrange the removed parts in correct sequence, do not confuse or contaminate them.
For non-reusable parts such as gasket, O ring and self-locking nut, replace them with new ones in
accordance with the instruction described in this manual.
Pick up replaced parts, put them in the containers, and show them to the customers.2
435 61
General Information - Repair Instruction1-4(2)Lift and support the vehicle
Be careful to lift and support the vehicle. Make sure that the vehicle is appropriately supported.
(3)Precoated Parts a. Precoated parts are bolts, nuts, etc. that are coated with a seal
lock adhesive at the factory. b. If a precoated part is retightened, loosened or caused to move
in any way, it must be recoated with the specified adhesive. c. When reusing precoated parts, clean off the old adhesive and
dry with compressed air. Then apply the specified sealing adhesive
to the bolt, nut or threads.Illustration Symbol Part Name
FuseMedium Current
Fuse
High Current Fuse Notice: the torque should achieve the lower limit of the allowed torque range.
d.The precoated parts should be kept intact for a period of time for induration based on the requirement of
the sealing adhesive.
(4)Gasket
If necessary, apply the sealant to the gasket to prevent disclosure.
(5)Bolt, nut and screw
Be careful to follow all torque specification and torque wrench should be used.
(6)Fuse
When replacing fuses, be sure the new fuse has the correct am-
perage rating. Do not exceed the rating or use one with a lower rating.Sealing Adhesive
Equal Rated Ampere Value
TableEngine AssemblyEngine Inspection3-2 Note:
Check the belt distortion at the specified point (see Figure 1-1).
When mounting a new belt, set the tensioning force to specified value.
After the belt has been operated more than 5 minutes, check and ensure the distortion not exceeding specified
value. (2) Make sure that the coolant level is above the neck of the radiator.
(3) Put the radiator cover in place, pressurize to 2.0Mpa, and keep the pressure for 1minute unless the coolant
leaks. (Mount a tester on the radiator cover, start the engine, and then shut down under a pressure 2.0Mpa).
(4) Check whether the coolant quantity in the dilatation can is between the mark "Low" and "Full".
(5) Check whether the radiator cover is clean; test whether the opening pressure of the main valve is 107.8KPa
with a radiator cover tester. The minimum opening pressure is 58.5KPa.
6. Check the battery.
(1) The terminal voltage of the battery is 12.5-12.9V at 20°C, and charge when the voltage value is less than
the specified value. Check whether the fusible cutout and the fuse are loose, corrosive or on.
7. Check the air filter.
(1) Whether the cover, the case or the element of the filter is distorted, corroded or damaged.
(2) Whether the air hose is damaged.
(3) Whether the air chamber is distorted or damaged.
(4) Whether the air filter element is blocked, polluted or damaged. If the filter element is blocked slightly,
remove the dirt by blowing the element from above.
(5) Whether there is any pollutant or dirt on the air filter support.
8. Check the spark plug.
(1) Spark generation.
a. Disconnect the coupling of the injector.
b. Remove the spark plug from the secondary wire.
c. Remove the spark plug.
d. Connect the spark plug to the secondary wire.
e. Ground the spark plug.
f. Start the engine, and check whether spark is generated.
Prompt: The starting time is not more than 1-2s.
(2) Clean the spark plug: The air pressure is not greater than 588kp and the time is not more than 20s.
(3) Check whether the thread and the insulator of the spark plug are damaged. Replace if necessary.
(4) Check the electrode gap of the spark plug: 0.8±0.1mm for MR479Q and MR479QA; 1±0.05mm for
MR481QA.
9. Check the driving belt.
Belt distortion (see Table 1):
Belt pressure: 98NMeasure belt loosenessCompressor
Crank Power steering
pumpWater
pump
Alternator2 1
3Figure 1-1New belt mm Used belt mm
Generator drive belt 7~9 11.5-13.5
Power steering belt 5~6 6~8
Air conditioner belt 6.5~7 8~9 -
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 -
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.
Serial No. Symptom
1 The whole combination meter does not work
2 Speedometer fault
3 Tachometer fault
4 Water temperature gauge fault
5 Fuel gauge fault
6 Odometer fault
7 Instrument illumination fault
8 Instrument warning light fault
Tester connection Condition Standard condition
C13 - ground Normal ONSection 2 Malfunction Symptom Table and TroubleshootingI. Symptom table The table below lists the typical malfunction symptoms of the combination meter. These malfunctions can be
troubleshot step by step in the section of the malfunction diagnosis.Tester connection Conditions Standard condition
C 12- ground Turn ignition switch to ON position 10-14 VCombination Instrument System -Malfunction Symptom Table and Troubleshooting5-10II. Specific troubleshooting steps The entire combination instrument does not work (1) Check safety wire (refer to schematic diagram of
combination instrument)
a. Check GAUGE (10 A) safety wire in fuse box of instrument desk is on
b. Check AM 1 (30 A) safety wire in fuse box of engine room is on
c. Check MAIN (80 A) safety wire in fuse box is on
Result and measures: if there is any blowout, replace with a safety wire of the same capacity
(2) Check team whole instrument socket connector
a. Inspect continuity
Disconnect connector from combination instrument assy.
Check connection between terminals
Standard:
b. Check voltage
Disconnect connector from combination instrument assy.
Turn ignition switch to ON
Check voltage between terminals
Standard:
Chapter 3 Wiper and Washer SystemSection 1 Wiper and Washer System Inspection5-21Remark:
The table below can help you find the causes of malfunction. These figures show the most possible
malfunctions in order of priority. Inspect each part in the order given. If necessary, repair or replace these parts.
Symptom
Front wiper does not work.
Front wiper in intermittent shift does not work.
Front washer motor does not work
When the washer switch is placed ON, front
wiper does not work
Washer fluid dose not jet out
1. When the washer switch places on OFF, wiper
blade can not return, or stay in a wrong place.
2. The wiper blade scratches the bodySuspected Area
1. Wiper fuse
2. Wiper switch assembly
3. Harness
1. Wiper switch assembly
2. Wiper motor assembly
3. Harness
4. Central controller
1. Wiper fuse
2. Wiper switch assembly
3. Wiper motor assembly
4. Harness
1. Wiper switch assembly
2. Wiper motor assembly
3. Harness
4. Central controller
1. Washer hose and nozzle
1.Wiper motor assembly (The position of wiper arm)II. Trouble shooting1. Check work of washer pump
(1) Install washer pump on tank system, pour cleaning fluid into
the tank.
(2) Disconnect connector of washer pump.
(3) As shown in the figure below, connect No. 1 terminal of
washer pump with positive pole (+) of storage battery; con
nect No. 2 terminal with negative pole (-) of storage battery.
Check whether cleaning fluid flows from tank.
(4) If there is no outflow, replace washer pump.Wiper and Washer System -Wiper and Washer System Inspection
Symptom
Front fog lamp dose not light up with light control
switch HEADLAMP (Head lamp is normal).
Only one side front fog lamp dose not lightSuspected Area
1. Fog lamp fuse
2. Front fog lamp relay
3. Light switch assembly
4. Harness
1. Bulb
2. HarnessSection 2 Light System Malfunction InspectionSuspected Area
1. Bulb
2. LH or RH headlamp fuse
3. Harness
1. Lamp switch assembly
2. Harness
1. Bulb
2. LH or RH headlamp fuse
3. Harness
1. Lamp switch assembly
2. Harness
1. Lamp switch assembly
2. Harness
1. Bulb
2. Harness
1. Bulb
2. Harness
1. Fuse
2. Light control switch
3. Harness
1. Beam control switch
2. Harness2. Front fog lamp systemSymptom
"Low beam" dose not light (One side)
"Low beam" dose not light (All)
"High beam" dose not light (One side)
"High beam" dose not light (All)
Light dose not flash (Dimmer)
Headlamp is dim
Only one side tail lamp lights
Tail lamps on both sides do not light (Headlamp
is normal)
Tail lamps on both sides do not light (Headlamp
is abnormal)Light System -Light System Malfunction Inspection5-28I. Light system problem symptoms table: Description:
The table below can help you find the causes of malfunction. These figures show the most possible
malfunctions in order of priority. Inspect each part in the order given. If necessary, repair or replace these parts.
1. Headlamp and tail lamp