Group 38 Fault Codes, Instrument Cluster
Troubleshooting
Cable harness
3
For checking the cable harness, see
service information under function
group 371.
Checking component
Note: Faults in the component may be caused by faults
in the cable harness to the control unit. Check the cable
harness before connecting a new component.
Sensor
1
Requirements:
•
The connector for the sensor dis-
connected.
•
Measuring resistance using a
multimeter.
•
Ignition off.
•
Measurement to sensor. (See
page 20 for measurement points.)
Measuring
points
Nominal value
A - B
R
≈
90
@
(220
F)
R
≈
255
@
(160
F)
R
≈
1 k
@ (77
F)
J39200
Checking sub-systems
Ground cable
1
Requirements:
•
Breakout box with adapter con-
nected between instrument cluster
connector B and cable harness.
•
Measuring resistance using a
multimeter.
•
Ignition off.
•
Instrument cluster connected.
Measuring
points
Nominal value
Pin B1- ground
R
≈
0
Note: If the correct value is not
achieved, remove the voltage from the
battery and measure again.
9813194
9998699
J39200
Signal cable
2
Requirements:
•
Breakout box with adapter con-
nected between instrument cluster
connector B and cable harness.
•
Measuring voltage using the multi-
meter.
•
Ignition key in the drive position.
•
Instrument cluster connected.
Measuring
points
Nominal value
Pins B1 - B3
V
max
≈
5 V
V
min
≈
0 V
9813194
9998699
J39200
Verification
Check that the fault has been repaired using the tests in
VCADS Pro (See “Tests in VCADS Pro” page 21).
22