DTC U0162-00: Communication Error With Center Display

U0162-00: (CMU) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with center display
Detection condition	When any of the following conditions is met. The connectivity master unit (CMU) detects the same malfunction 3 times or more continuously from the following items during communication between the center display and connectivity master unit (CMU). Connector connection malfunction Open circuit in signal circuit Center display malfunction Connectivity master unit (CMU) malfunction The connectivity master unit (CMU) detects that it cannot communicate with the center display 3 times or more continuously within the specified time. The connectivity master unit (CMU) receives an error signal from the center display 3 times or more continuously within the specified time. When the connectivity master unit (CMU) requests a center display status verification signal, it cannot receive it 3 times or more continuously.
Fail-safe	Not applicable
Possible cause	Malfunction in wiring harness (including connector/terminal) between center display and connectivity master unit (CMU) (See CIRCUIT INSPECTION .) (See CONNECTOR INSPECTION .) Malfunction in wiring harness (including connector/terminal) between battery/lead-acid battery and center display (See CIRCUIT INSPECTION .) (See CONNECTOR INSPECTION .) Malfunction in wiring harness (including connector/terminal) between center display and body ground (See CIRCUIT INSPECTION .) (See CONNECTOR INSPECTION .) Center display malfunction (Refer to [CENTER DISPLAY INSPECTION] in service information.) Connectivity master unit (CMU) malfunction (Refer to CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION in service information.)
Repeatability verification procedure	Clear the DTC recorded in the memory. (See CLEARING DTC .)
Courtesy of MAZDA MOTORS CORP.
1	Battery/lead-acid battery
2	Center display
3	Connectivity master unit (CMU)