4.5. Front CSĐ lifting motor
4.5.1. Disassembly sequence
Use the same procedure for both right and left sides.
1. Disconnect the negative battery cable
2. Remove the decorative panel of the front door frame bracket
- Release the tab and clip, then remove the front door lower frame trim.
3.Remove the upper front arm plastic support plate
- Remove the screw
- Release the 7 tabs and 2 clips and remove the front armrest support plate.
- Disconnect the connector.
4. Remove the front door panel
- Remove the screw
- Release 9 clamp joints
-Disconnect the front door lock remote control cable and the front door interior lock cable and remove the front door trim panel
5.Remove the outside rearview mirror assembly 6.Remove the front door trim
7.Remove the front door panel bracket
-Remove 2 screws and bracket for front door decorative panel
8. Remove the front door repair hole cover
Remove the connectors and clips, then remove the front door service hole cover.
Note: Peel off any remaining tape on the door.
9.Remove the front door glass
- Temporarily install the main switch to raise and lower the electric window
- Move the front door glass until the 2 bolts can be seen through the repair holes.
- Remove 2 bolts
Note: Do not drop or damage the door glass when removing the bolts.
Remove the front door glass in the direction indicated by the arrows as shown in the illustration.
Attention: Do not damage the glass.
- Remove the main switch controlling the power window
10. Remove the front window lift assembly
- Disconnect the connector
- Loosen bolt A
- Remove 5 bolts then remove the front door window lifter
Note: Do not drop or damage the window lift assembly when removing the bolts.
- Remove the window lifter through the repair hole
11. Remove the front CSĐ lifting motor assembly
Using a T25 screwdriver, remove the 3 screws and the power window motor assembly.
4.5.2. Testing sequence
1. Check the operation of the left front electric window lift motor assembly
Note: Do not apply voltage to any motor terminal except terminal 2 to avoid damaging the pulse sensor inside the motor.
Reset the CSĐ lift motor assembly (initialize the pulse sensor) after installing the CSĐ lift motor and glass lift assembly onto the door.
Apply battery voltage to the CSĐ controller and check the operation of the lifting motor.
Standard :
Measurement location
Standard | |
Battery positive terminal (+) → Terminal 2 Battery negative terminal (-) → Terminals 1, 4 and 10 | Rotary motor clockwise |
Battery positive terminal (+) → Terminal 2 Battery negative terminal (-) → Terminals 1 and 7 | Reverse rotation motor clockwise |
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If the voltage is out of specification, replace the wire or connector.
If the voltage is within specification, install the front fog light relay and follow step 5.
Step 5 Check the front fog light switch
- Remove the D4 connector of the fog light switch
- Use a multimeter to measure the resistance of the front fog light switch.
Measurement location
Condition
Standard
D4-3 (BFG) -D4-4 (LFG)
Light switchFront Fog OFF
>10kΩ
D4-3 (BFG) -D4-4 (LFG)
Front fog light switchON
<1 Ω
- Standard resistor
D4 connector is located on the combination switch assembly.
If the resistance is out of specification, replace the combination switch (the fog light switch is located in the combination switch).
If the resistance is within specification, follow step 6.
Step 6 Check wiring and connectors (front fog light relay-light selector switch)
- Disconnect connector D4 of the combination switch assembly
- Use a voltmeter to measure the voltage value of jack D4 on the wire side.
Measurement location
Control modecontrol
Standard
D4-3 (BFG) - (-) AQ
TAIL
11 to 14 V
D4 connector for the wiring of the combination switch assembly
If the voltage does not meet the standard, replace the wire or connector.
If the voltage is within standard, there may have been an error in the previous measurements.
Step 7 Check the front fog lights
- Remove the front fog light electrical connector.
- Supply battery voltage to the fog lamp terminals
Jack 8, B9 of front fog lamp on the electrical side
blind first.
Power supply location
Terms and Conditions
Battery positive terminal - Terminal 2Battery negative terminal - Terminal 1
Fog lightsbefore morning
- If the light does not come on, replace the bulb.
If the light is on, re-plug the jack and continue to step 8.
Step 8 Check wiring and connectors (relay and front fog lights)
- Disconnect the B8 and B9 connectors of the front fog lights.
- Use a voltmeter to measure voltage at the following locations:
Measurement location
Switch location
Terms and Conditions
B8-2 - (-) AQ
Electric lock ON TAIL size switchFog switch ON
11 to 14 V
B9-2 - (-) AQ
Electric lock ONTAIL size switch Fog switch ON
11 to 14 V
B8 and B9 connectors on the front fog lamp wiring side
Voltage is not up to standard, repair or replace the jack. If up to standard, there may have been an error in the measurement process.
2.2.4. Procedure for removing, installing and adjusting fog lights 1. Procedure for removing
- Remove the front inner ear pads
Use a screwdriver to remove the 3 screws and remove the front part of the front inner ear liner
-Remove the fog light assembly
+ Disconnect the connector.
+ Use a screwdriver to remove 3 screws to remove the fog light cover
2. Installation sequence
-Rotate the fog lamp bulb in the direction indicated by the arrow as shown in the figure and remove the fog lamp from the fog lamp assembly.
-Rotate the fog light bulb in the direction indicated by the arrow as shown in the figure and install the light into the fog light assembly.
- Use a screwdriver to install the fog light cover
-Install the electrical connector
Attention: Be careful not to damage the plastic thread on the lamp assembly.
- Install the front inner ear pads
Use a screwdriver to install the front inner bumper with 3 screws.
3. Prepare the vehicle to adjust the fog light convergence. Prepare the vehicle:
- Make sure there is no damage or deformation to the vehicle body around the fog lights.
- Add fuel to the fuel tank
- Add oil to standard level.
- Add engine coolant to standard level.
- Inflate the tire to standard pressure.
- Place spare tire, tools and jack in original design position
- Do not leave any load in the luggage compartment.
- Let a person weighing about 75 kg sit in the driver's seat.
4. Prepare to check the fog light convergence
a/ Prepare the vehicle status as follows:
- Place the car in a dark enough place to see the lines. The lines are the dividing line, below which the light from the fog lights can be seen but above which it cannot.
- Place the car perpendicular to the wall.
- Keep a distance of 7.62 m between the center of the fog lamp and the wall.
- Park the car on level ground.
- Press the car down a few times to stabilize the suspension.
Note: A distance of approximately 7.62 m is required between the vehicle (fog lamp center) and the wall to adjust the convergence correctly. If the distance of 7.62 m cannot be achieved, set the correct distance of 3 m to check and adjust the fog lamp convergence. (Since the target area varies with the distance, please follow the instructions as shown in the figure.)
b/ Prepare a piece of thick white paper about 2 m high and 4 m wide to use as a screen.
c/ Draw a vertical line through the center of the screen (line V).
d/ Set the screen as shown in the picture. Note:
- Keep the screen perpendicular to the ground.
- Align the V line on the screen with the center of the vehicle.
e/Draw the reference lines (H, V LH and V RH lines) on the screen as shown in the figure.HINT:
Mark the center of the fog lamp on the screen. If the center mark cannot be seen on the fog lamp, use the center of the fog lamp or the manufacturer's name mark on the fog lamp as the center mark.
H line (fog light height):
Draw a line across the screen so that it passes through the center mark. Line H should be at the same height as the center mark of the fog light bulb.
Line V LH, V RH (center mark position of left fog lamp LH and right fog lamp RH):
Draw two lines so that they intersect line H at the center marks.
5. Check the fog light convergence
a/ Cover the fog lamp or remove the connector of the other side fog lamp to prevent light from the unchecked fog lamp from affecting the fog lamp convergence test.
b/ Start the engine.
c/ Turn on the fog lights and make sure that the dividing line is outside the standard area as shown in the drawing.
6. Adjust the fog light convergence
Use a screwdriver to adjust the fog light to the standard area by turning the toe adjustment screw.
Note: If the screw is adjusted too far, loosen it and then tighten it again, so that the last rotation of the light adjustment screw is clockwise.
3. Self-study questions
1. Describe the operating principle of the lighting system with automatic headlight function
2. Describe the operating principle of the lighting system with the function of rotating headlights when turning
3. Draw diagram and connect lighting system on Hyundai Porter car
4. Draw diagram and connect lighting system on Honda Accord 1992
5. Draw the lighting circuit on a 1993 Toyota Lexus
LESSON 3 MAINTENANCE AND REPAIR OF SIGNAL SYSTEM
I. IMPLEMENTATION GOAL
After completing this lesson, students will be able to:
- Distinguish between types of signals on cars
- Correctly describe common symptoms and suspected areas causing damage.
- Connecting signal circuits ensures technical requirements
- Disassemble, install, check, maintain and repair the signal system to ensure technical requirements.
- Ensure safety in work and industrial hygiene
II. LESSON CONTENT
1. General description
The signal system equipped on cars aims to create signals to notify other vehicles participating in traffic about the vehicle's operating status such as: stopping, parking, braking, reversing, turning...
Signals are used either by light such as headlamps, brake lights, turn signals….. or by sound such as horns, reverse music….
Just like the lighting system. A signal system circuit usually consists of: battery, fuse, wire, relay, electrical load and control switch. Only some switches of the signal system are on the combination switch. The switches of other signals are usually located in different locations such as in the gearbox or brake pedal……
2. Maintenance and repair
2.1. Turn signals and hazard lights
The installation location of the turn signal is shown in Figure 3.1. The turn signal control switch is located in the combination switch under the steering wheel. Turning this switch to the right or left will make the turn signal turn right or left.
The hazard light switch is used when the vehicle has a problem while participating in traffic. When the hazard light switch is turned on, all the turn signals on the vehicle will light up at a certain frequency. The hazard light switch is usually placed separately from the turn signal switch (some old cars integrate the hazard and turn signal switches on the same combination switch cluster).
Figure 3.1 Turn signal switch Figure 3.2 Hazard switch
The part that generates the flashing frequency for the lights is called a turn signal relay. The turn signal relay usually has 3 terminals: B (positive power supply); E (negative power supply); L (providing the turn signal switch to distribute to the
lamp)
2.1.1. Circuit diagram
To generate the frequency for the turn signal, a turn signal relay is used in the turn signal circuit. The current from the turn signal relay will be sent to the turn signal switch assembly to distribute the current to the turn signal lights for the driver's purpose.
Figure 3.3. Schematic diagram of a turn signal circuit without a hazard switch
1. Battery; 2. Electric lock; 3. Turn signal relay; 4. Turn signal switch; 5. Turn signal lamp; 6. Turn signal lamp; 7. Hazard switch
Figure 3.4 Schematic diagram of turn signal circuit with hazard switch
1. Battery; 2. Combination switch cluster; 3. Turn signal;
4. Turn signal light; 5. Turn signal relay
Today's cars no longer use three-pin turn signal relays (B, L, E) but use eight-pin turn signal relays (figure 3.5) (pin number 8 is used for hazard lights).
For this type, the current supplying the turn signal lights is supplied directly from the turn signal relay to the lights.
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Measurement and Remote Control – Electrical Engineering Industry - 8 -
Enforcement of fines from practice in District 2, Ho Chi Minh City - 8
If the result is not as specified, replace the power window motor assembly.
2. Check the operation of the front right electric window lift motor assembly
Apply battery voltage to the CSĐ controller and check the operation of the lifting motor.
Standard :
Measurement location
Standard | |
Rotary motor | |
Battery positive terminal (+) → Terminal 1 | same direction |
Battery negative terminal (-) → Terminal 2 | copper |
lake | |
Rotary motor | |
Battery positive terminal (+) → Terminal 2 | reverse |
Battery negative terminal (-) → Terminal 1 | clockwise |
clock |
If the result is not as specified, replace the power window motor assembly.
4.5.3. Installation sequence
1. Install the front CSĐ lifting motor assembly
- Apply MP grease to the sliding and rotating areas of the lifting motor.
- Use T25 carambola screwdriver to install the CSĐ lifting motor assembly with 3 screws.
Torque: 5.4 N*m{ 55 kgf*cm , 48 in.*lbf }
2. Install the front window lift assembly
- Apply MP grease to the sliding and rotating areas of the front window lifter.
Note: Do not apply grease to the window lift spring.
- Temporarily tighten bolt A onto the front door window lifter
- Install the front window lifter into the car door panel. Use bolt A to hang the front window lifter on the car door panel.
Attention: Do not drop the window lifter.
- Install the front door window lifter with 5 bolts and tighten bolt A.
Torque: 8.0 N*m
- Install the connector
3. Install front door glass
- Insert the door glass into the car door panel along the glass track as indicated by the arrows in the drawing.
Attention: Be careful not to break the glass.
- Install the front door glass onto the front door glass lifter with 2 bolts.
Torque: 8.0 N*m
4. Install the repair hole cover first
- Stick butyl tape on the door panel, then install the cover.
New front door repair hole as shown in the drawing.
Attention:
When installing the repair hole cover, pull the connecting rod and connectors through the repair hole.
Do not allow to wrinkle or fold after covering the repair hole.
After installing the repair hole cover, check the quality of the seal.
5. Install the front door panel bracket
Install the front door panel mounting bracket with 2 screws.
6. Install the front door vertical strip
7. Install the exterior rearview mirror assembly
8. Install the front door panel
- Connect the front door lock control cable and the front door inside lock cable
- Install 9 clamps and front door trim panel
- Tighten the screws
9. Install the upper front armrest support
- Install the connector.
- Install the 7 lugs and 2 clips and install the support plate on the front armrest base.
- Tighten the screws.
10. Install the front door lower frame trim. Fit the tabs and clips, then install the front door lower frame trim.
11. Connect negative battery cable Torque: 5.4 Nm
Attention: Be careful not to mix up the battery terminals.
4.6. Rear CSĐ lifting motor
Use the same procedure for both the right and left sides.
4.6.1. Disassembly sequence
1.Remove the negative battery cable
2.Remove the upper rear door armrest support plate
- Remove the screw.
- Release the 7 tabs and 2 clips, then remove the upper support plate of the rear door armrest.
- Disconnect the connector.
3.Remove front and rear door panels
- Remove the screw
- Release 7 clamp joints
- Disconnect the rear door lock remote control cable and the rear door interior brake cable and remove the rear door trim panel.
4. Remove the rear door panel bracket
Remove 2 screws and rear door trim mounting bracket
5.Remove the rear door repair hole cover
- Remove the connectors and clips, then remove the rear door service hole cover.
Note: Peel off any remaining tape on the door.
6.Remove the rear door brake assembly
Remove the 3 bolts, then remove the rear door latch assembly.
Attention:
Do not drop or damage the door stopper when removing the bolts.
Remove the door jamb through the repair hole.
7.Remove the rear door gasket
Release the 32 clamps and remove the rear door gasket.
Note: Peel off any remaining tape on the door.
8.Remove the rear door vertical strip
Note: Avoid damaging the paint when removing the vertical strip. Use a screwdriver with a tape-wrapped head and gently separate the vertical strip latches from the vehicle door.
9. Remove the rear door glass slide rail
Note: The glass slide rail is very sharp, be careful when removing it. When working in this area, be gentle and careful to avoid hitting other parts around the work area.
4.6.2. Testing sequence
10.Remove the rear door glass divider
Remove the 2 bolts, screws and rear window divider. Note: Do not drop or damage the rear window divider when removing the bolts and screws.
11.Remove the rear door glass assembly
Remove the rear window glass from the rear window lifter.
12. Remove the rear window lift assembly.
- Disconnect the connector.
- Loosen bolt A.
- Remove the 3 bolts, then remove the rear window lifter.
Attention:
Do not drop or damage the rear window lift assembly after removing the bolts.
Remove the window lift through the repair hole.
13. Remove the rear CSĐ lifting motor assembly
Using a T25 screwdriver, remove the 3 screws and the electric window lift motor assembly.
1. Check the left rear lift motor
Apply battery voltage to the CSĐ controller and check the operation of the lifting motor.
Standard :
Measurement location
Standard | |
Battery positive terminal (+) → Terminal 1 Battery negative terminal (-) → Terminal 2 | Clockwise rotation motor lake |
Battery positive terminal (+) → Terminal 2 | Rotary motor |