LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> On-Board Diagnostic - Start Stop Unit >> DTC U3004-16; Acc Relay Circuit Malfunction >> Notes

DTC U3004-16; Acc Relay Circuit Malfunction: Notes

DTC U3004-16; ACC RELAY CIRCUIT MALFUNCTION DETECTION CONDITION AND POSSIBLE CAUSES

Description ACC relay circuit malfunction
Detection condition
  • Start stop unit detects that the ACC monitor voltage of less than 2.5 V for 1 s or more with the ignition switched to ACC or ON (engine off or on).
Fail-safe Not applicable
Possible cause
  • ACC relay malfunction
  • ACC relay circuit malfunction
    • Short to ground in wiring harness between IG2 30 A fuse and ACC relay terminal C
    • IG2 30 A fuse malfunction
      • Open circuit in wiring harness between battery positive terminal and ACC relay terminal C
  • Start stop unit connector or terminal malfunction
  • Start stop unit power supply circuit (ACC) malfunction
    • Short to ground in wiring harness between ACC relay terminal D and start stop unit terminal 1E
    • MIRROR 7.5 A fuse malfunction
      • Open circuit in wiring harness between ACC relay terminal D and start stop unit terminal 1E
  • Start stop unit malfunction
G11426288