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Diesel Engines
Info. / Comm.
Volume 1
Climate Control
Diagnostic Manual, Info./Comm., Volume 1
Printable version
LOCATION:
1.13 Instrument Cluster (IC)
> 25 Electrical Test Program - Test
Electrical Test Program - Test
Test scope
Test connection
Test condition
Nominal value
Possible cause/Remedy
1.0
Instrument cluster (A1)
Voltage supply
Circuit 30
3
(1A.3)
12
(1A.12)
A1
11
(1A.11)
11
(1A.11)
Ignition:
OFF
Remove Instrument cluster (A1)
Disconnect connector 1
(30-pole)
11 - 14 V
Fuse 10 in fuse and relay box (F1),
Wiring,
1.1
1.1
Voltage supply
Circuit 15
3
(1A.3)
A1
9
(1A.9)
Ignition:
ON
11 - 14 V
Fuse 3 in fuse and relay box (F1),
Wiring,
A1
2.0
HHT interface
Connection between A1 and data link connector (X11/4)
15
X11/4
11
(1B.11)
Ignition:
OFF
Remove A1,
Disconnect connector 1
(30-pole)
5
Wiring.
3.0
ECL and windshield washer level:
ECL level switch (S41), windshield washer level switch (S42) and wiring
12
(1B.12)
A1
4
(1B.4)
Ignition:
OFF
Coolant level and windshield washer fluid level: OK
Remove A1
Disconnect connector 1 (30 pole).
233 - 297
Wiring
3.1
Values O.K.:
A1
3.1
ECL switch (S41)
1
S41
2
Ignition:
OFF
Remove expansion tank
Disconnect connector at S41 (refer to
21
/6 for component location).
Coolant level OK
102 - 120
S41
Values O.K.:
3.2
3.2
Windshield washer fluid level switch (S42)
1
S42
2
Ignition:
OFF
Disconnect connector at S42 (refer to
21
/7 for component location).
Washer fluid level OK
145 - 185
S42