2006 GREAT WALL HOVER Service Repair Manual

Safety airbag-15

Yes Present failure codes
Replace SRS safety airbag system unit
See he removal/installation of SRS
safety airbag system unit
History accumulated failure codes
The end of failure diagnosis
4 Place the ignition switch in LOCK position
Release accumulator negative wire and wait for 1 minute
plus
Remove the left trim cover
Shut off SRS safety airbag system unit translation
connector clips
Install back the accumulator negative wire, place the
ignition switch in ON position
Is the potential of SRS safety airbag system unit connector
clips stitch 5,6(grounding) above 9V? No Replace wiring harness
Drive side failure
Failure code
$9021
$9022
$9024
$9025 Driver ’s side safety airbag failure (high or low resistance, shorting grounding, etc.)
Tes t
condition Warni ng
If not correctly handled, the safety airbag module as well as pretension safety belt may possibly be trigged, released
and tensioned, thus make serene damage to people. Therefore, please carefully read the repairing warning before
trouble handling. Please take references in safety airbag system repairing warning
Driver’s side safety airbag
The resistance between the SRS safety airbag system connector clips connectors not within the designated scope
SRS safet y airbag system driver’s side airbag relative wiring harness shorting or shutoff
Possible
caus es Driver’s side safety airbag module failure
Clock spring internal failure
Failure of circuit connector clips between clock spring and SRS safety airbag system electronic-control unit
Shutoff or shorting of wiring harness between clock spring and SRS safety airbag system electronic-control unit.
Misconnection of SRS safety airbag system driver’s side airbag generator connector clip
Procedure Tes t Operation
Normal Next step
1 Check the clock spring
Warni ng
If not correctly handled, the safety airbag module may possibly be
trigged and released thus make serene damage to people. Therefore,
please carefully read the repairing warning before trouble handling.
Please take references in safety airbag system repairing warning.
Are the relative parts of clock spring normal? (The relation bet ween
stitches, unnecessary shutoff or shorting?) if the pr esent clock spring ca n
be replaced by a better one. Abnormal Replace the clock spring
Take references in the
removal/installation for
safety airbag system and
clock spring
Replace the driver’s side
safety airbag module
Tk f i th
Confirm the failure in driver’s side safety airbag module or other parts.
Rl thDAB dl ithbtt

Safety airbag-16
Yes Next step
4 Confirm the failure in clock spring or other parts
configure the special tools fuel and t emperature diagnostic instrument
at 2Ω position
Install back the accumulator negative wire
Place the ignition switch in ON place
Any failure code in display? No Replace clock spring
Take references in the removal
and installation for safety airbag
system and clock spring.
Nor mal Replace SRS safety airbag
system unit; take references in
removal/installation of SRS
safety airbag system unit.
5 Check the wiring harness between clock spring and SRS safety airbag
system electronic-control unit
Place the ignition switch in LOCK position
Release accumulator negative wire and wait for 1 minute plus
Remove PAB trim cover, glove box (passengers’ side safety airbag is
under the trim cover)
Release the passengers’ side safety airbag module connector clip
Release all SRS safety airbag system unit connector clips
Check whether the following troubles are with the harness between
connector clips terminals of SRS safety airbag system unit and clock
spring
Grounding
Power-supply shorting
Shutoff
Is the previous wiring harness normal? Abnormal Replace the wire harness
Nor mal Next step
6 Check the clock spring connector clip
Remove the steering pillar shell
Release the clock spring connector clip
Is the clock spring connector clip normal? Abnormal Replace the wiring harness or
connector clips

Nor mal Next step
7 Check clock spring
Remove clock spring
Take references in removal/installation of safet y airbag system as
well as clock spring
Check clock spring
Take references in the test for safety airbag system and clock spring.
Is the clock spring normal? Abnormal Replace clock spring
Take references in the
removal/installation of safety
airbag system and clock spring.
Nor mal Next step
8 Check the wiring harness between clock spring and SRS safety airbag
system electronic-control unit
Place the ignition switch in LOCK position
Release accumulator negative wire and wait for 1 minute plus
Remove PAB trim cover, glove box (passengers’ side safety airbag is
under the trim cover)
Release the passengers’ side safety airbag module connector clip
Release all SRS safety airbag system unit connector clips.
Check whether the following troubles are with the harness between
connector clips terminals of SRS safety airbag system unit and spring
clock.
Grounding
Power-supply shorting
Shutoff
Is the previous harness normal? Abnormal Replace clock spring
Take references in the
removal/installation of safety
airbag system, and clock spring

Safety airbag-17

Passengers’ side failure

Failure code
$9015
$9016
$9018
$9019 Passengers’ side safety airbag module (high or low resistance or shorting grounding)
Tes t co n d it i o n Warning
If not correctly handled, the safety airbag module as well as pretension safety belt may possibly be
trigged, released and tensioned, thus make serene damage to people. Therefore, please carefully read the
repairing warning before trouble handling. Please take references in safety airbag system repairing warning
If with passengers’ side safety airbag failure
The resistance between SRS safety airbag system unit connector clip stitch 13 and stitch 14 not within the
designated scope.
The wiring harness shorting between safety airbag system unit stitch 13 and stitch 14
Open loop between SRS safety airbag system unit connector clip stitch 13 and stitch 14,
Possible causes Passengers’ side safety airbag module failure
The failure of connector clip between passengers’ side safety airbag module and SRS safety airbag system
electronic-control unit
The failure of connector clip between SRS safety airbag system unit and grounding jumper.
The circuit shutoff or shorting between passengers’ side safety airbag module and SRS safety airbag system
electronic-control unit
The circuit shutoff or shorting between SRS safety airbag system unit and grounding jumper
SRS safety airbag system unit failure
Procedure Test Operation

Yes Next step
1 Is the vehicle with passengers’ side safety airbag module
No Step 5
Present failure code
Next step
Check passengers’ side safety airbag connector clips
Warning

Safety airbag-18
Impact-vehicle diagnosis
Test SRS-ECU diagnostic signals
1. Connect the (X-431 diagnostic test’s) diagnostic joint
2. Read the diagnostic results with X-431 diagnostic tester
Repairing procedure
1.When safety airbag is released.
The following parts should be replaced with new ones
a. Passengers’ side safety airbag module
b. SRS-ECU
c. Driver’s side safety airbag module
2 Check the following parts; replace them with new ones providing something wrong with them.
a. Clock spring
b. Steering-wheel, steering column, bottom steering shaft module
3.Driver’s side safety airbag module’s installation status towards the steering wheel.
a. Check whether abnormal knocking is with the steering wheel, its activity is in good condition and its clearance is normal.
b. Check whether the wiring harness joint is broken and its terminal is deformed.
Caution: Due to the impact, the diagnostic instrument cannot communicate with SRS-ECU when accumulator is lack of
power, in this case, check and maintain the instrument panel wiring harness or utilize the extension power supply.

Safety airbag-19
1. Check whether depression, crack or deformation is with the SRS-ECU bracket.
2. Check whether the joint is broken and terminal is deformed
3. Check SRS-ECU bracket’s installation status
a. Check whether depression, crack or deformation is with the shroud
b. Check whether the joint is broken, terminal is deformed and wiring harness is meshed.
c. Check whether depression, crack or deformation is with the gas generator shield.
d. Make sure the direction of the arrow is straightforward
4. Check the installation status of safety airbag module.
Driver’s side safety airbag module (the following Figure)
generator
bracketconnect the hornconnect the driver’s side
module
Clock spring (right Figure)
1. Check whether the joint and protecting tube are broken and the terminal is deformed.
2. Check whether the shield is deformed.
Steering wheel, steering column and bottom steering shaft module
1. Check the installation status of driver’s side safety airbag module
2. Check whether abnormal knocking is with the steering wheel and its clearance is normal
Passengers’ side safety airbag module (the following Figure)
1. Check the installation status of passengers’ side safety airbag module
2. Check whether the shield is deformed

Safety airbag-20
Wiring harness joint (instrument cluster wiring harness)
Check whether the wiring harness is well installed, the joint is broken and the terminal is deformed.
Warning
The attentions for use and maintenance for SRS safety airbag are displayed in the Figure. Operate according to the sign and, the
destructed and dirty sign must be replaced with a new one steering
wheel in Figure6-1
Driver’s side safety airbag module in Figure 6.2
Clock spring in Figure 6.3
SRS-ECU in Figure 6.4
Sun visor in Figure 6.5
Passengers’ side safety airbag module in Figure 6.6
Passenger side airbag (PAB)

Safety airbag-21
Removal methods for all the parts
Safety airbag electronic-control unit
Caution
Continue the operation 60 seconds after the removal of accumulator negative. Wrap the removed negative with
insulating tape for insulation.
2. The SRS-ECU must not be separated nor repaired replace the failed SRS-ECU with a new one.
3. Prevent the SRS-ECU from shock and vibration, replace the SRS-ECU with depression, crack or deformation with a
new one.
4. Do replace the SRS-ECU with a new one after the safety airbag is released.
5. Do not damage the SRS-ECU when removing or maintaining the parts next to it.
Figure 61 Figure 62
Figure 6
3 Figure 64
Figure 6
5 Figure 66 warning signswarning signs
passengers’ side safety airbag module
warning signs

Safety airbag-22
1. Operations before removal
a. Place the ignition switch in OFF position.
b. Remove the accumulator negative and well preserve it somewhere or wrap it with tape.
2. Removal procedure.
a. Central channel’s side panel (or remove the co-instrument panel)
b. Remove the connector clip connecting with the safety airbag ECU
3. Installation sequence
a. SRS-ECU;
b. Install the connector clip connecting with the safety airbag ECU
c. Central channel’s side panel (or remove the co instrument panel)
d. Connect the grounding jumper.
4. Some points for installation
a. SRS-ECU installation
b. Post-installation test
Place the ignition switch in ON position
SRS alarm lamp flashes in 6 seconds and extinguishes.
c. If not extinguishes, the failure test and troubleshooting must be done.
5. Test
a. Whether the depression, crack or deformation is with the SRS-ECU shield.
b. Whether the terminal is broken or deformed.
Caution: The SRS-ECU safety airbag will not work normally if the SRS-ECU is not correctly installed.
Caution: The SRS-ECU with depression, crack or deformation must be replaced with a new one.
For the inspection of SRS-ECU besides the previous refer to related item of troubleshooting