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Group 38 Fault Codes, Instrument Cluster
Specifications
Pin
Signal type
Measurement
points
Nominal value
Other
A14
Not used
A15
J1939 CAN High
A15 - A2
V
≈
3 -5 V
A16
J1939 CAN Low
A16 - A2
V
≈
0 -3 V
A17
J1587/1708+
A17 - A2
V
≈
0 -5 V
A18
J1587/1708-
A18 - A2
V
≈
0 -5 V
A19
Not used
A20
Not used
A21
Audible hazard warning (signal
from Lighting Control Module)
A21 - A2
V
≈
0 V / V
bat
(Switching)
A22
J1939-3 Low
A22 - A2
V
≈
0 -5 V
4