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Volume 5.1

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LOCATION:    16.2 Airbag (AB)   >   23 Electrical Test Program - Test (driver/passenger-side airbag)


Electrical Test Program - Test (driver/passenger-side airbag)

Test scope
Test connection
Test condition Nominal value Possible cause/Remedy
1.0 Voltage supply
Circuit 15R



X11/13
2
Ignition: OFF
Disconnect and cover battery negative terminal. Disconnect SRS test connection (X11/13).

Ignition key in position "1".








11 - 14 V
Wiring,
Battery voltage,
Ignition/starter switch (S2/1).

2.0 SRS control module (N2/2)
Ignition: ON
Erase DTC
DTC erased. SRS control module (N2/2),
(SMS, Job No. 91-622).
3.0 Driver airbag squib (R12/3)


3
X11/13




4
Ignition: OFF
Disconnect and cover battery negative terminal. Disconnect SRS test connection (X11/13). Connect test cable according to connection diagram. Turn steering wheel from full right to full left stop.













2-5
Wiring,
< 2 short circuit,
> 5 open circuit,
Driver airbag squib connector (X28/4) not connected.
Slip ring or Clock spring contact,
Driver airbag (SMS, Job No. 91-660),
3.1
3.1 Isolation resistance





X11/13

3









X11/13

3




+






Turn ignition key to position "1" and "2".


> 20 k




> 20 k


Wiring,
Short circuit to circuit 31.


Wiring,
Short circuit to circuits 15/15R/30,
If nominal values are obtained but DTC can not be erased,
32 1.0, 2.0,
23 9.0
4.0 Front passenger airbag
squib (R12/8)


5
X11/13



6
Ignition: OFF
Disconnect and cover battery negative terminal. Disconnect SRS test connection (X11/13).






2-5

Wiring,
< 2 short circuit,
> 5 open circuit,
Passenger side airbag (SMS, Job No. 91-680),
4.1
4.1 Isolation resistance





X11/13
5








X11/13

5



+





Turn ignition key to position "1" and "2".


> 20 k



> 20 k

Wiring,
Short circuit to circuit 31.




Wiring,
Short circuit to circuits 15/15R/30,
If nominal values are obtained but DTC can not be erased,
32 1.0, 2.0
23 10.0
5.0 Left front seat belt buckle switch (S68/3)









 

1
(D)








 

X55/3









 

2
(D)

Ignition: OFF
Disconnect and cover battery negative terminal. Disconnect SRS test connection (X11/13).
Disconnect left seat contact strip (X55/3) connector D.
Seat belt tongue in buckle:
Not latched

Latched













400 ±10

100 ±10
Wiring, open circuit,
Short circuit or shorted to circuit 31,
Ground (W26),
Seat belt buckle
(SMS, Job No. 91-502).
5.1  






 

12





 

N2/2






 

10

Disconnect connector to control module (N2/2). Connect left seat contact strip (X55/3).
Seat belt tongue in buckle:
Not latched

Latched








400 ±10

100 ±10
Wiring,
Seat belt buckle.

6.0 Right front seat belt buckle switch (S68/4)









 

1
(D)








 

X55/4









 

2
(D)

Ignition: OFF
Disconnect and cover battery negative terminal. Disconnect SRS test connection (X11/13).
Disconnect right seat contact strip (X55/4) connector D.
Seat belt tongue in buckle:
Not latched

Latched













400 ±10

100 ±10
Wiring, open circuit,
Short circuit or shorted to circuit 31,
Ground (W26),
Seat belt buckle
(SMS, Job No. 91-502).
6.1  







12






N2/2







10
Disconnect connector to control module (N2/2). Connect right seat contact strip (X55/4).
Seat belt tongue in buckle:
Not latched

Latched






 

400 ±10

100 ±10

Wiring,
Seat belt buckle.

7.0 Front passenger airbag
Resistance


12
N2/2



15
Ignition: OFF
Disconnect and cover battery negative terminal. Disconnect SRS test connection (X11/13). Disconnect control module (N2/2) connector.
100 ±10 Wiring,
Ground (W26),
Resistance in connector to control module (N2/2).
8.0 SRS MIL (A1e15)


 


 
Ignition key in position "1". SRS MIL (A1e15)
comes on and then goes out after approx. 4 seconds.
Wiring,
F3-15,
SRS MIL (A1e15),
Intermittent short circuit to circuit 31 (X11/4 - A1e15),
Time limit for DTC readout/erase exceeded.
9.0 Wiring
X11/3
3
4






2






N2/2

N2/2
6
2






6
Ignition: OFF
Disconnect and cover battery negative terminal. Disconnect SRS test connection (X11/13). Disconnect control module (N2/2) connector.


<1






>20 k


Wiring.





Short circuit,
9.1
9.1 Isolation resistance





X11/3

4
3







X11/3

4
3



+
+







Turn ignition key to position "1" and "2".


<20 k





<20 k


Short circuit to 31





Short to circuits 15/15R/30
10.0 Wiring
X11/3
5
6






2






N2/2

N2/2
13
2





13

Ignition: OFF
Disconnect and cover battery negative terminal. Disconnect SRS test connection (X11/13). Disconnect control
module (N2/2) connector.


<1






>20 k


Wiring.





Short circuit,
10.1
10.1 Isolation resistance





X11/3

5
6







X11/3

5
6



+
+








 


<20 k





<20 k


Short circuit to 31





Short to circuits 15/15R/30