|
Note:
Interrogate fault memory after completing the function "Read measured value block" => Page 01-16
.
Display group 001
|
Display group 001
|
|
Read measured value block 1
|
⇒
|
◂ Indicated on display
|
|
|
|
xxx
|
xxx
|
xxx
|
xxx
|
|
|
|
|
1
|
2
|
3
|
4
|
◂ Display zones
|
Specification
|
Evaluation
|
|
|
|
|
|
Igniter, front passenger belt tensioner (N 154)1)
|
Correct
or
not fitted
|
=> Page 01-72
|
|
|
|
|
Igniter, driver's belt tensioner (N 153)1)
|
Correct
or
not fitted
|
|
|
|
|
Igniter, front passenger's airbag (N131)
|
Correct
|
|
|
|
Igniter, driver's airbag (N95)
|
Correct
|
|
1)
Only valid for vehicles with electric belt tensioners, the display is not relevant for vehicles with mechanical belt tensioners or "not fitted" will be displayed.
Evaluation for display group number 001
|
|
|---|
|
Display zone
|
Designation
|
Display contents
|
Rectifying fault
|
|
1
|
Igniter for airbag (driver's side) (N95)
|
correct
trig. earth
trig. positive
too low
|
- No faults present
Visual check of wiring
Watch display and check connectors of appropriate current circuit for correct engagement and tight fit.
If display changes to "correct", erase fault memory
Pull igniter connector off airbag unit
Display changes to "too high"
Renew airbag unit
Display remains on "too low"
Separate connector (in steering wheel) on coil connector with slip ring
Display changes to "too high"
Renew wire from coil connector with slip ring to airbag
Display remains on "too low"
Separate connector on coil connector with slip ring (under lower steering column switch trim)
|
|
|
|
|
|
|
Continued on next page
|
|
|
|---|
|
Display zone
|
Designation
|
Display contents
|
Rectifying fault
|
|
1
|
|
|
too high
|
|
Display changes to "too high"
Renew coil connector with slip ring, on vehicles equipped with ESP is installed in a housing with the steering angle sender (G85)
Display remains on "too low"
Renew wiring harness
Pull igniter connector off airbag unit
Connect igniter connector to inert igniter on VAS 5056 => Page 01-86
Display changes to "correct"
Renew wire from coil connector with slip ring to airbag
|
|
|
|
|
|
|
Continued on next page
|
|
|
|---|
|
Display zone
|
Designation
|
Display contents
|
Rectifying fault
|
|
1
|
|
|
too high
|
|
- Display remains on "too high"
Separate connector on coil connector with slip ring (under the lower steering column switch trim)
Connect test box VAS 5056 to driver's circuit wiring harness instead of coil connector with slip ring => Page 01-86
.
Display changes to "correct"
Renew coil connector with slip ring (installed in a housing with the steering angle sender (G85) on vehicles equipped with ESP
Display remains on "too high"
Renew wiring harness
|
|
|
|
|
|
|
Continued on next page
|
|
|
|---|
|
Display zone
|
Designation
|
Display contents
|
Rectifying fault
|
|
2
|
Igniter for airbag (front passenger's) (N131)
|
correct
trig. earth
trig. positive
too low
too high
|
No faults present
Visual check of wiring
Watch display and check connectors of appropriate current circuit for correct engagement and tight fit.
If display changes to "correct", erase fault memory
Separate connector between wiring harness and adapter cable to airbag unit
Display changes to "too high"
Renew airbag unit
Display remains on "too low"
Renew wiring harness
Connect test box VAS 5056 to passenger's circuit wiring harness => Page 01-86
.
Press button on VAS 5056
Display changes to "too low"
Renew airbag unit
Display remains on "too high"
Renew wiring harness
|
|
|
|
|
|
|
Continued on next page
|
|
|
|---|
|
Display zone
|
Designation
|
Display contents
|
Fault elimination
|
|
3
|
Igniter driver's belt tensioner (N153)1)
|
Correct
Too high
Too low
Trig. earth
Trig. positive
not fitted
|
- Visual check of wiring
Watch display and check connectors of appropriate current circuit for correct engagement and tight fit.
If the display changes to "correct", erase fault memory
Replace driver's/front passenger's belt tensioner
|
|
4
|
Igniter front passenger's belt tensioner (N154)1)
|
Correct
Too high
Too low
Trig. earth
Trig. positive
not fitted
|
|
1)
Only valid for vehicles with electric belt tensioners, the display is not relevant for vehicles with mechanical belt tensioners or "not fitted" will be displayed.
Display group 003
|
Display group 003
|
|
Read measured value block 3
|
⇒
|
◂ Indicated on display
|
|
|
|
xxx
|
xxx
|
xxx
|
xxx
|
|
|
|
|
1
|
2
|
3
|
4
|
◂ Display zones
|
Specification
|
Evaluation
|
|
|
|
|
|
Front passenger seat belt latch switch (E25)
|
not fitted
or
Belt:YES
Belt:NO
|
=> Page 01-78
|
|
|
|
|
Driver seat belt latch switch (E24)
|
not fitted
or
Belt:YES
Belt:NO
|
|
|
|
|
Front passenger's seat occupied recognition
|
not fitted
|
|
|
|
Voltage supply
|
correct
|
|
Evaluating display group number 003
|
|
|---|
|
Display zone
|
Designation
|
Display contents
|
Rectifying fault
|
|
1
|
Voltage supply
|
correct
too low
too high
|
- Battery voltage min. 9 Volt
Check alternator: => Current flow diagrams, Electrical fault finding, Fitting locations
Check voltage regulator: => Current flow diagrams, Electrical fault finding, Fitting locations
Visual check of wiring
|
|
2
|
Front passenger's seat occupied recognition
|
not fitted
|
No fault present
|
|
|
|
|
|
|
Continued on next page
|
|
3
|
Driver seat belt latch switch (E24)
|
not fitted
Belt:YES
Belt:NO
too high
too low
to earth
to pos.
n. defin.
|
▪ If the switch is not installed or when the belt tongue is inserted in the latch "Belt:YES" is displayed or when the belt tongue is not inserted in the latch "Belt:NO" is displayed, there is no fault present
Visual check of the wiring
Watch display and check connectors of appropriate current circuit for correct engagement and tight fit
If the display changes to "correct", erase fault memory
|
|
4
|
Front passenger seat belt latch switch (E25)
|
not fitted
Belt:YES
Belt:NO
too high
too low
to earth
to pos.
n. defin.
|
- Renew defective wiring or connectors
Renew driver or front passenger belt lock switch
|
Display group 005
|
Display group 005
|
|
Read measured value block 5
|
⇒
|
◂ Indicated on display
|
|
|
|
xxx
|
xxx
|
xxx
|
xxx
|
|
|
|
|
1
|
2
|
3
|
4
|
◂ Display zones
|
Specification
|
Evaluation
|
|
|
|
|
|
Rear side airbag igniter, front passenger's side (N202)
|
not fitted
|
|
|
|
|
|
Rear side airbag igniter, driver's side (N201)
|
not fitted
|
|
|
|
|
Front passenger's, side airbag igniter (N200)
|
correct
|
=> Page 01-81
|
|
|
Driver's, side airbag igniter (N199)
|
correct
|
|
Evaluating display group number 005
|
|
|---|
|
Display zone
|
Designation
|
Display contents
|
Rectifying fault
|
|
1
|
Driver's side, side airbag igniter (N199)
|
correct
too high
too low
trig. earth
trig. positive
|
- Visual check of wiring
Watch display while checking connectors of respective circuit for correct engagement and tight fit.
If display changes to "correct", erase fault memory.
Renew defective wiring or connections
|
|
2
|
Front passenger's side, side airbag igniter (N200)
|
correct
too high
too low
trig. earth
trig. positive
|
- Renew driver's or front passenger's side, side airbag
|
|
3
|
Rear side airbag igniter, driver's side (N201)
|
not fitted
|
Fault not present
|
|
4
|
Rear side airbag igniter, front passenger's side (N202)
|
not fitted
|
|
Display group 007
|
Display group 007
|
|
Read measured value block 7
|
⇒
|
◂ Indicated on display
|
|
|
|
xxx
|
xxx
|
xxx
|
xxx
|
|
|
|
|
1
|
2
|
3
|
4
|
◂ Display zones
|
Specification
|
Evaluation
|
|
|
|
|
|
Empty1)
|
|
|
|
|
|
|
Empty1)
|
|
|
|
|
|
Front passenger's head airbag igniter (N252)
|
correct
or
not fitted
|
=> Page 01-83
|
|
|
Driver's head airbag igniter (N251)
|
correct
or
not fitted
|
|
1)
Empty means in this case: Display zone is blank
Evaluating display group number 007
|
|
|---|
|
Display zone
|
Designation
|
Display contents
|
Rectifying fault
|
|
1
|
Driver's head airbag igniter (N251)
|
not fitted
correct
too high
too low
Trig. earth
Trig. positive
|
▪ "Correct" will be displayed if no head airbag is fitted, no fault is present
Visual check of wiring
Watch display and check connectors of appropriate current circuit for correct engagement and tight fit.
If display changes to "correct", erase fault memory.
Renew defective wiring or connections
|
|
2
|
Front passenger's head airbag igniter (N252)
|
not fitted
correct
too high
too low
Trig. earth
Trig. positive
|
- Renew driver's or front passenger's head airbag
|
Display group 009
|
Display group 009
|
|
Read measured value block 9
|
⇒
|
◂ Indicated on display
|
|
|
|
xxx
|
xxx
|
xxx
|
xxx
|
|
|
|
|
1
|
2
|
3
|
4
|
◂ Display zones
|
Specification
|
Evaluation
|
|
|
|
|
|
Front passenger's side rear, crash sensor identification (G257)
|
e.g.01
or
not fitted
|
=> Page 01-85
|
|
|
|
|
Driver's side rear, crash sensor identification (G256)
|
e.g.01
or
not fitted
|
|
|
|
|
Front passenger's side crash sensor identification (G180)
|
e.g.01
or
not fitted
|
|
|
|
Driver's side crash sensor identification (G179)
|
e.g.01
or
not fitted
|
|
Evaluating display group number 009
|
|
|---|
|
Display zone
|
Description
|
Display
|
Rectifying fault
|
|
|
Driver's side crash sensor identification (G179)
|
e.g.01
or
not fitted
|
▪ The identification number displayed for the crash sensor (for side crash) must correspond to the displayed crash sensor version number when the control unit version is displayed => Page 01-10
If the crash sensor identification number and the displayed version number do not correspond when the control unit identification is displayed, the crash sensors or the control unit must be renewed respectively
|
|
|
Front passenger's side crash sensor identification (G180)
|
e.g.01
or
not fitted
|
|
|
|
Driver's side rear crash sensor identification (G256)
|
e.g.01
or
not fitted
|
|
|
|
Front passenger's side rear, crash sensor identification (G257)
|
e.g.01
or
not fitted
|
|
|
