Diagnostic trouble code table

Type	DTC	Faulty function/component	Diagnostic procedure, see
P	1901	No bus communication with DICE. See fault diagnosis 3:5 Bus and diagnostic function.
P	1902	No bus communication with TWICE. See fault diagnosis 3:5 Bus and diagnostics function.
P	1908	No bus communication with MIU. See fault diagnosis 3:5 Bus and diagnostics function.
P	1921	No bus communication with Trionic. See fault diagnosis 3:5 Bus and diagnostics function.
P	1923	No bus communication with TCM. See fault diagnosis 3:5 Bus and diagnostics function.