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Home >> Mazda >> 2020 >> CX-3 FWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> On-Board Diagnostic - Active Driving Display >> DTC U0402-68: Error Signal Received From TCM (Active Driving Display) >> Diagnostic Procedure

Diagnostic Procedure

DTC U0402:68 (ACTIVE DRIVING DISPLAY) DIAGNOSTIC PROCEDURE

Step Inspection Action
1 VERIFY DTCs FOR TCM Yes Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (EW6A-EL/EW6AX-EL)] .)
No Go to the next step.
2 DRIVE VEHICLE THEN VERIFY DTCs FOR TCM AGAIN Yes Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (EW6A-EL/EW6AX-EL)] .)
No Go to the next step.
3 VERIFY THAT REPAIRS HAVE BEEN COMPLETED Yes Replace the active driving display, then go to the next step.
(See ACTIVE DRIVING DISPLAY REMOVAL/INSTALLATION .)
No Go to the next step.
4 VERIFY IF OTHER DTCs DISPLAYED
  • Are any other DTCs displayed?
Yes Repair the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE (ACTIVE DRIVING DISPLAY) .)
No DTC troubleshooting completed.