 |
Test scope |
Test connection
|
Test condition |
Nominal value |
Possible cause/Remedy |
| 1.0 |
Instrument cluster (A1)
Voltage supply
Circuit 30 |
19 
(1.19) |
A1
|
17
(1.17)
|
Remove A1.
Disconnect connector 1,
(Figure 1 and 4). |
11 - 14 V
|
Wiring,
1.1 |
| 1.1 |
Voltage supply
Circuit 15, unfused |
19
(1.19) |
A1
|
1
(1.1)
|
Remove A1.
Disconnect connector 1.
Ignition: ON |
11 - 14 V |
Wiring,
1.2 |
| 1.2 |
Voltage supply
Circuit 15 |
19
(1.19) |
A1
|
18
(1.18)
|
Remove A1.
Disconnect connector 1.
Ignition: ON |
11 - 14 V |
Wiring,
A1 |
| 2.0 |
Instrument cluster (A1)
Illumination
LCD display illumination
|
19
(1.19) |
A1
|
24
(1.24) |
Remove A1.
Disconnect connector 1
(Figure 1 and 4).
Ignition: ON
Turn on parking lights. |
11 - 14 V |
Wiring.
Values OK:
Bulbs,
Bulbs for LCD display,
Exterior lamp switch (S1),
A1
|
| 3.0 |
Fuel level gauge (A1p2)
Wiring and contacts |
2
2  |
B4/1
B4/2
|
3
3 |
Ignition: OFF
Disconnect connector of left fuel level sensor (B4/1)
(  21 , Figure 5).
Jumper connect sockets, then remove connector for right fuel level sensor (B4/2)
( 21 , Figure 5).
Connect resistance substitution unit.
Ignition: ON
Resistance substitution unit setting:
8 +6 
27 ± 5.3
46.5 ± 10.5
96 ± 11.7
145.5 ± 13.2
189 - 7.8 |
Display in
A1p2:
 01)
Res.1)
1/4
1/2
3/4
1/1 |
Wiring,
Instrument cluster (A1),
3.1 |
| [3.0] |
Vehicles (as of 03/94) with recalibrated resistance values. |
|
|
|
Resistance substitution unit setting:
6 +6.6
24 ± 5.3
51 ± 10.5
100.5 ± 11.7
145.5 ± 13.2
189 - 7.8 |
Display in
A1p2:
01)
Res.1)
1/4
1/2
3/4
1/1 |
|
| 3.1 |
Left fuel level sensor (B4/1).
Right fuel level sensor (B4/2). |
2 
2 |
B4/1
B4/2
|
 3
3 |
Disconnect connector at B4/1.
Disconnect connector at B4/2.
|
3 (± 1) Empty
97.5 (± 3) Full
3 (± 1) Empty
97.5 (± 3) Full |
B4/1
B4/2 |
| 4.0 |
Tachometer (A1p5)
Wiring and contacts |
W16/6
|
|
X11/4
17
|
Ignition: OFF
Disconnect all connectors from N3/4 ( 21 , Figure 4).
Connect signal generator and set to a voltage amplitude of approx. 10 V
(Figure 6).
Ignition: ON
|
Engine 111
30 Hz 1000/rpm
130 Hz 4000/rpm
200 Hz 6200/rpm
Engine 104
50 Hz 1000/rpm
195 Hz 4000/rpm
315 Hz 6400/rpm
|
Wiring,
Instrument cluster (A1).
Values OK:
N3/4,
Engine 104: D.M., Engines, Vol. 2 - 1.1,
Engine 111: D.M., Engines, Vol. 2 - 1.2) . |
| 5.0 |
Low engine oil level indicator lamp (A1e12, Figure 2)
Wiring and contacts
|
W3 |
|
S43
1 |
Oil level is OK.
Disconnect connector from oil level switch (S43).
Engine: at Idle
|
A1e12 does not illuminate.
|
Wiring,
S43,
Instrument cluster (A1),
5.1 |
| 5.1 |
Wiring and contacts |
|
|
|
Engine: at Idle
Disconnect connector from S43 ( 21 , Figure 1).
|
A1e12 illuminates after 60± 10 seconds.
|
A1e12,
Wiring,
A1,
5.2 |
| 5.2 |
|
W3 |
|
S43
1 |
Connector unplugged at S43.
|
0 |
S43. |
| 6.0 |
Electronic
speedometer (A1p8)
Wiring and contacts
Vehicles with ASR or ETS as of 06/94:
Left front axle VSS sensor (L6/1) connected to ASR/SPS or ETS/SPS control module (N47-1 or N47-2).
See D.M., Chassis and Drivetrain, Vol. 3, 9.2 23
|
ABS
W16/6
ABS/
ASR
W16/6
ASR/
SPS
or ETS/
SPS
W16/6
|
|
N30
5
(1.5)
N30/1
18
(1.18)
N47-1
N47- 2
|
Ignition: OFF
Disconnect connector from ABS control module (N30) or ASR control module (N30/1), ASR/SPS or ETS/SPS control module (N47-1, N47-2)
( 21 , Figure 4).
Connect signal generator and set to a voltage amplitude of approx. 10 V (Figure 6).
Ignition: ON
|
With increasing frequence input the vehicle speed indicated must also increase.
|
Wiring,
Instrument cluster (A1).
Values OK:
N30 or N30/1,
D.M., Chassis and Drivetrain,
Vol. 2, 5.3 or 6.3 >23
N47-1 or N47-2
D.M., Chassis and Drivetrain,
Vol. 3 - 9.2 >23 |
| 7.0 |
Outside temperature indicator temperature sensor (B14)
( 21 , Figure 1)
Wiring and contacts
|
1
(2.1) |
A1
|
2
(2.2) |
Remove A1.
Disconnect connector 2
(Figure 4).
Measure ambient air temperature at B14,
( 21 , Figure 1).
° F at B14
- 4 ° F
+ 32 ° F
+ 68 ° F
+ 104 ° F
|
29 k
9.8 k
3.7 k
1.6 k
|
Wiring,
B14
Values OK:
A1 |
| 8.0 |
ECT gauge (A1p1)
Wiring and contacts |
W3 |
|
X26/25
2
(B2) |
Separate engine/chassis connector (X26/25)
( 21 , Figure 2) and connect in the resistance substitution unit.
Ignition: ON
130
70
38
22 |
Display ( ° C) in
A1p1:
60 °C
80 °C
100 °C
120 °C
|
Wiring,
A1
Values OK:
ECT gauge sensor (B13).
|
| 9.0 |
Low ECL indicator lamp
(A1e11, Figure 2)
Wiring and contacts
|
|
|
|
Disconnect connector at ECL switch (S41)
( 21 , Figure 2).
Engine: at Idle
|
A1e11 does not illuminate.
|
Wiring,
A1
Values OK:
ECL switch (S41),
9.1
|
| 9.1 |
Wiring and contacts |
1 |
S41 |
2
|
Disconnect connector at S41
Engine: at Idle
|
A1e11
illuminates after approx. 5 - 60
sec.
|
A11e1,
Wiring,
A1
Values OK:
S41 |
| 10.0 |
Low windshield washer fluid level indicator lamp (A1e13, Figure 2)
Wiring and contacts |
|
|
|
Disconnect connector at windshield washer fluid level switch (S42)
( 21 , Figure 6).
Engine: at Idle |
A1e13 does not illuminate.
|
Wiring,
A1
Values OK:
S42,
10.1 |
| 10.1 |
Wiring and contacts |
1 |
S42 |
2 |
Disconnect connector at S42.
Engine: at Idle |
A1e13
illuminates. |
A1e13,
Wiring,
A1
Values OK:
S42
|
| 11.0 |
Brake pad wear indicator lamp (A1e6, Figure 2)
Wiring and contacts |
|
|
|
Disconnect connector at left front brake pad wear sensor connector (S10/1x1)
( 21 , Figure 3).
Disconnect connector at right front brake pad wear sensor connector (S10/2x1)
( 21 , Figure 3).
Engine: at Idle
|
A1e6 does not illuminate. |
Wiring,
A1
Values OK:
S10/1 or S10/2,
11.1 |
| 11.1 |
Wiring and contacts |
1
1 |
S10/1x1
S10/2x1
|
2
2 |
Disconnect connector at S10/1x1.
Engine: at Idle
Disconnect connector at S10/2x1.
Engine: at Idle
|
A1e6
illuminates.
A1e6
illuminates.
|
Brake pad wear indicator
lamp (A1e6),
Wiring,
A1
Values OK:
S10/1 or S10/2,
Left or right front brake pads.
|
| 12.0 |
Low brake fluid level/
parking brake indicator
lamp (A1e7, Figure 2)
Wiring and contacts |
|
|
|
Disconnect connector at brake fluid level switch (S11, 21 , Figure 2) as well as flat pin connector at parking brake switch
(S12, 21 , Figure 3).
Engine: at Idle
|
A1e7 does not illuminate.
|
Wiring,
12.1 |
| 12.1 |
Wiring and contacts |
1 |
S11
|
2
|
Disconnect connector at S11.
Engine: at Idle
Set parking brake.
Connect flat pin connector at S12 ( 21 , Figure 3)
Engine: at Idle
|
A1e7 does not illuminate.
A1e7 illuminates. |
A1e7,
Wiring,
A1
Values OK:
S11,
S12 |
| 13.0 |
Generator charge indicator lamp (A1e5, Figure 3)
Wiring and contacts |
|
|
|
Disconnect D+ connector at generator (G2).
Ignition: ON
|
A1e5 does not illuminate.
|
Wiring,
A1,
13.1 |
| 13.1 |
Wiring and contacts
|
|
|
|
Disconnect D+ connector at generator (G2), and touch to ground.
Ignition: ON |
A1e5 illuminates.
|
A1e5,
Wiring,
A1
Values OK:
Generator (G2).
|
| 14.0 |
SRS MIL (A1e15, Figure 3)
Wiring and contacts |
W16/6 |
|
X11/4
30 |
Connect socket 30 of 38-pole data link connector (X11/4, Figure 6) to ground in right of component compartment
(W16/6, 21 , Figure 4).
Engine: at Idle |
A1e15 illuminates.
|
A1e15,
Wiring,
A1
Values OK: D.M., Body and Accessories, Vol. 5.1 - 16.3 |
| 15.0 |
ABS MIL (A1e17, Figure 3)
Wiring and contacts |
W16/6
|
|
N30
29
(1.29)
|
Ignition: OFF
Disconnect connector at ABS control module (N30, 21 , Figure 4).
Engine: at Idle |
A1e17 illuminates.
|
A1e17,
Wiring,
A1.
Values OK:
D.M., Chassis and Drivetrain,
Vol. 2 - 6.3 |
| 16.0 |
ASD MIL (A1e24, Figure 3)
Wiring and contacts |
W16/6
|
|
N30/2
2
(1.2)
|
Ignition: OFF
Disconnect ASD control module (N30/2) from connector
( 21 , Figure 6).
Engine: at Idle
|
A1e24 illuminates. |
A1e24,
Wiring,
A1
Values OK:
D.M., Chassis and Drivetrain,
Vol. 2 - 4.3 |
| 17.0 |
ASR MIL (A1e22, Figure 3)
Wiring and contacts |
W16/6
|
|
N30/1
10
(1.10) |
Ignition: OFF
Disconnect connector from ASR control module (N30/1) ( 21 Figure 4).
Engine: at Idle
|
A1e22
illuminates.
|
A1e22,
Wiring,
A1
Values OK:
D.M., Chassis and Drivetrain,
Vol. 2 - 5.3 |
| 18.0 |
ASD warning lamp (A1e25)
Wiring and contacts |
W16/6
|
|
N30/2
4
(1.4) |
Ignition: OFF
Disconnect ASD control module (N30/2) from connector
( 21 , Figure 6).
Engine: at Idle |
A1e25 illuminates.
|
A1e25,
Wiring,
A1
Values OK:
D.M., Chassis and Drivetrain,
Vol. 2 - 4.3 |
| 19.0 |
ASR warning lamp (A1e21)
Wiring and contacts |
W16/6
|
|
N30/1
12
(1.12)
|
Ignition: OFF
Disconnect connector from ASR control module (N30/1) ( 21 , Figure 4).
Engine: at Idle
|
A1e21 illuminates. |
A1e21,
Wiring,
A1
Values OK:
D.M., Chassis and Drivetrain,
Vol. 2 - 5.3
|
| 20.0 |
"CHECK ENGINE" MIL (A1e26, Figure 2)
Wiring and contacts |
|
|
|
Ignition: OFF
Disconnect connector from diagnostic module (N59/1)
( 21 , Figure 6).
Engine: at Idle |
A1e26 does not
illuminate.
|
Wiring,
20.1 |
| 20.1 |
Wiring and contacts |
2 |
N59/1
|
9 |
Ignition: OFF
Disconnect connector from N59/1
(Install bridge, Figure 5).
Engine: at Idle |
A1e26 illuminates.
|
Wiring,
A1,
Diagnostic module (N59/1).
Values OK:
D.M., Engines,
Vol. 3 - 8.5
|
Printable version
