Power Steering System-Power Steering Gear4-77Replacement1. Drain the power steering system fluid
2. Loosen the high pressure pipes.
Loosen the high pressure pipes with special tool
3. Loosen the low pressure pipes
Loosen the low pressure pipes with special tool
4. Separate the tie rod from the steering knuckle
(1) Remove the cotter pin, loosen the groove type lock nut
(2) Separate the tie rod ball stud joint from the steering knuckle
taper hole5. Loosen the thread screw of the high and low pressure pipe on the steering gear assembly
6. Remove the boot and press plate
7. Disconnect the power steering gear assembly from the steering column
Remove the steering gear pinion shaft spline lock bolt on the universal joint yoke
8. Remove power steering gear assembly
Remove 2 steering gear assembly set bolts. Remove the power steering gear assembly
9. Installation is in the reverse order of the removal
Notice:
(1) Insert the steering gear pinion shaft spline into the spline hole of the universal joint yoke, make sure that
the positions of the notch of the steering gear pinion shaft and the lock bolt of the universal joint yoke are
correct
(2) Secure the power steering gear with 2 bolts, torque: 125~152N.m
(3) Tighten the steering gear pinion shaft spline lock bolt on the universal joint yoke, torque: 22~34N.m
(4) Install the boot and press plate
(5) Install the threaded connector of the power steering high and low pressure pipe to the power steering gear,
torque: 25~32N.m
Power Steering System
-Power Steering Gear4-78 (6) Connect the tie rod ball stud pin with the steering knuckle, make sure that the mating surface of the tie rod
ball stud pin and the steering knuckle is clean, tighten the slot nut, torque: 27~39N.m. Install the cotter pin,
make sure of the correct installation
(7) Add appropriate amount of specified power steering fluid, bleed the power steering system
(8) Check the power steering pipeline system for leakage
(9) Check the front wheel alignment and front wheel left and right limit turn angle, adjust the toe in if
necessary and tighten the tie rod lock nut
(10) Check the position of the steering wheel. It is required that the steering wheel spokes are basically
symmetrical when the vehicle is driven straight ahead, reassemble the steering wheel if necessary
III. Wiper switch assemblyReplacement
1. Detach steering wheel assembly
(1) Disconnect the main power source of the vehicle.
(2) Remove the passenger SRS module assembly, and cautiously put it in a safe place.
(3) Loosen steering wheel lock-bolts and remove the assembly.
2. Remove wiper switch (1) Disconnect the connector.
(2) Remove the 2 tapping screws that are for mounting the wiper switch, take out the wiper switch from the
bracket of the combination switch.IV. Washer nozzleAdjustment
1. Inspect washer nozzle
(1) Start the engine, check if the position where the washer fluid from the nozzle sprays the windshield is in
the upper center wiped by the blades.
(2) Change the height (left/right) of the nozzle hole to adjust the point where washer fluid sprays the windshield.Wiper and Washer System -Replacement and Adjustment5-25
5-62 (22) There are problems in the configuration of the airbag ECU (DTC 93D6)
When using the scan tool to test the airbag ECU, the DTC is 93D6, indicating that there are problems in the
configuration of the airbag ECU.
Step Operation Yes No
1 When using the scan tool to test the airbag ECU, is the DTC 93D6? Go to step 2 other
2Go to step 3
3 Go to step 4 Go to step 1
4 The fault has been removed, use the scan tool to eliminate the DTC.Check whether the configuration of the airbag ECU is consistent with the
actual on-board configuration?
After the troubleshooting, switch on the power supply, observe the status
of the warning light. The warning light shall goes off after lighting up for
4 seconds (self-check). (23) The impact signal output interface of the airbag ECU is short to ground or the impact output circuit is
disconnected. (DTC 93D7)
When using the scan tool to test the airbag ECU, the DTC is 93D7, indicating that the impact signal output
interface of the airbag ECU is short to ground or the impact output circuit is disconnected.IV. Diagnosis of collided vehicle No matter airbag is unfolded or folded, inspection and maintenance of collided vehicle should be performed
according to the following sequence.
1. Check ECU diagnosis signal.
(1) Connect scanner diagnosis joint
(2) Use scanner to read out diagnosis result.
2. Repair sequence
(1) when airbag is unfolded.
The following components should be replaced with new parts
a. Airbag assembly on passenger side
b. ECU
c. Airbag assembly on driver side
d. Seat belt with pretensionerNote:
due to impact, when battery power is insufficient, scanner can not communicate with ECU, now check and
service instrument board wire harness or use external power supply.SRS (Supplemental Restraint System)-SRS-General Information (2 ) Check the following components, if there is any abnormity, replace with new parts
a. Clock spring.
b. Steering wheel, steering column, lower steering shaft assembly
(3 ) The installation status of driver airbag assembly in relation to steering wheel
a. Check and see if there is abnormal noise in the steering wheel, the action of the same is good, or the
clearance is normal.
b. Check the connecter of the wire harness for damage and the terminal for distortion.
6. Steering wheel, steering column and steering lower shaft component.
(1) Check the installation status of driver airbag assembly.
(2) Check the steering wheel for any abnormal noise and see if the clearance is normal.
7. Check the wire harness connector (instrument panel wire harness).
Check and see if the wire harness is securely installed, if the joint is damaged and if the terminal is distorted.V. Warning marks When using or maintaining an airbag, the warnings shall be indicated. When maintaining, proceed in
accordance with the description of mark. In addition, if the mark is damaged or stained, it shall be replaced.
(1) Steering wheel, see Fig. 1.
(2) Driver airbag assembly, see Fig. 2.
(3) Clock spring, see Fig. 3.
Fig. 1.Fig. 2.Warning markFig. 3.Warning
mark (4) ECU, see Fig. 4.
(5) Sunshade, see Fig. 5.VI. SRS electronic control unit (ECU)Removal and Installation
1. Operations prior to Removal
(1) Turn the ignition switch OFF.
(2) Remove negative (-) terminal cable of the battery. Put it in a proper position or wrap it up with insulating
tape.Fig. 4.Fig. 5.5-64SunshadeSRS (Supplemental Restraint System)-SRS-General Information
Notice
1. Work must be started 60s after the negative (-) terminal cable is detached from battery. The detached
negative (-) terminal cable shall be protected with insulating tape for insulation.
2. Never attempt to dismantle or repair an ECU. If there is any trouble, replace the ECU with a new one.
3. Prevent the ECU from shock or vibration. If pitting, crack or distortion is found, replace the ECU with a
new one.
4. Every time an airbag is deployed, the ECU shall be replaced with a new one.
5. When disassembling or maintaining the parts around ECU, attention must be given to avoid contacting the
ECU. 2. Removal procedures:
(1) Remove the miscellaneous box in the middle consoce.
(2) Remove the connectors to SRS ECU.
(3) Remove ECU.
3. Installation procedures:
(1) Install ECU.
(2) Install the connectors to SRS ECU.
(3) Install the miscellaneous box in the middle consoce.
(4) Connect negative (-) terminal cable of the battery.
4. Key points for Installation:
(1) Install ECU.Notice
If the ECU cannot be installed correctly, the airbag will not act normally.
5. Check
a. ECU case for pitting, crack and distortion
b. The connector for damage and distortion.Notice
If pitting, crack or distortion is found on an ECU, replace it with a new one.VII. Airbag assembly & clock spring1.Removal and Installation of driver airbag and clock spring
Operations prior to removal
(1)Take out the ignition key after the steering wheel and front
wheel are adjusted to straightforward direction.
(2)Remove negative (-) terminal cable from the battery.
Removal procedures of the driver airbag assembly:
(1) Unscrew the screws of the two sides, see fig.15-65SRS (Supplemental Restraint System)-SRS-General Information (2) Check after installation.
a. Turn the ignition switch ON.
b. The warning light goes on within 4s, and then goes out.
(3) If the light doesn't go out, check the trouble and eliminate it.
For other ECU inspections, see Troubleshooting.
fig.1
(2) Disconnect the connector of the wire harness.
(3) Remove the components of airbag assembly.
(4) Remove steering wheel.
Removal procedures of clock spring:
(1) Remove the driver airbag assembly (disconnect the connector).
(2) Remove steering wheel gently (see the precaution).
(3) Remove the steering column cover and disconnect the connector of wire harness in the lower end.
(4) Remove clock spring.
Installation procedures of the driver airbag assembly
(1) Pre-Check
1- Install steering wheel
2- Connect the wire harness
3- Install driver airbag assembly
4- Screw up the installation screws of the two sides
(2) Connection of the negative (-) terminal of the battery
(3) Check after installation.
Installation procedures of clock spring:
(1) Pre-Check
1- Connection and fixation of the clock spring and combination switch
2- the connector of wire harness in the lower end
3- the steering column cover
4-Thread the line at the upper end of the clock spring through hole on the body part of the steering wheel
5-Install the steering wheel
6-Connect wiring harness
7-Install the airbag assembly components
(2) Connect the negative (-) terminal cable of the battery
(3) Check after installation5-66Key points for installation
(1)Pre-Check
a. The new airbag or clock spring shall be checked before being installed.SRS (Supplemental Restraint System)-SRS-General InformationNotice
Use scanner to do adiagnossis of airbag circnit, not to break down.
Keep the removed driver airbag assembly upside down in a clean and dry place.Notice
Keep the removed clock sprint in a clean and dry place.fig.2Installation nutRemoval of steering wheel (see the figure 2)
(1) Remove the installation screws from the middle and remove
the steering wheel.(Disconnect the horn connector)
5-67Notice
When connecting or disconnecting the turn the ignition switch OFF first.
d. Turn the ignition switch ON.
e. Read the diagnostic circuit and see if the other locations than the troubled area of the airbag are normal.
f. Turn the ignition switch OFF.
g. Remove the negative (-) terminal cable from the battery, and protect it with insulating tape for insulation.Notice
Work must be started 60s after the negative (-) terminal cable is disconnected from battery.
(2) Installation of clock spring
Screw up the clock spring clockwise to the end, rotate it counter-
clockwise by 2.5 turns, and align it with the mark (see the figure 3).Notice
If the center of the clock spring cannot be aligned, the steering
wheel will not turn midway, or cause bad performance to the clock
spring circuit, consequently hamper the normal action of the airbag.
(3) Installation of the components of the steering wheel and airbag assembly
a. When the center of the clock spring is aligned, install the components of the steering wheel and airbag
assembly.
b. After being installed, rotate the left and right sides of the steering wheel to position, and make sure there
is no abnormality.
(4) Check after installation
a. Slightly rotate the steering wheel left and right, make sure that there is no abnormality or noise. (Driver
airbag module, clock spring)
b. Turn the ignition switch ON.
c. The warning light goes on within 4s, and then goes out.figure 3SRS (Supplemental Restraint System)-
SRS-General Information b. Connect negative (-) terminal cable of the battery.
c. Connect the diagnostic connector (16 pins).Notice
In case of scrapping an airbag, it shall be noted that the airbag shall be deployed according to the specified
procedures before being scrapped.SRS Air Bag
Warning LightNotice
When installing the components of the steering wheel and
airbag assembly, attention should be given to protect the wire
harness of the clock spring from seizure.
d. The trouble shall be eliminated if the warning light remains on when the ignition switch is turned on or
after it goes out after 4s.