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Home >> Mazda >> 2016 >> CX-9 Touring, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> On-Board Diagnostic [Front Body Control Module (FBCM)] >> DTC U0338-09:Error Signal Received From Start Stop Unit >> Notes

DTC U0338-09:Error Signal Received From Start Stop Unit: Notes

Description Error signal received from start stop unit
Detection condition 
  • Front body control module (FBCM) receives the CAN error signals from the start stop unit 3 times  continuously with the ignition switched ON (engine off or on).
Fail-safe 
  • If DTC U0338:09 is detected when the ignition is switched ON (engine off or on), the headlight LO and the TNS (parking lights) are illuminated.
  • If DTC U0338:09 is cleared, the headlight LO and the TNS (parking lights) are turned off, and the operation returns to normal.
Possible cause 
  • DTCs are stored in the start stop unit.
  • Light switch malfunction
  • Start stop unit malfunction
  • Front body control module (FBCM) malfunction
System wiring diagram  Not applicable