The J1587 serial data line is used as the standard communication link for on-board vehicle instrumentation, off-board service diagnostics and fleet management.
The instrument cluster module is linked to the Engine Control Moduel (ECM) via these data link wires. The function is used to calculating functions related to date limits.
Conditions for diagnostic trouble code (DTC):
1) The message is unavailable or not regularly updated
Probable cause
1) Instrument cluster
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