LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (On-Board Diagnostic - Start Stop Unit) >> DTC B10E7-11: IG1 Relay Circuit Malfunction >> Notes

DTC B10E7-11: IG1 Relay Circuit Malfunction: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
System malfunction location  IG1 relay circuit malfunction
Detection condition 
  • The ignition is switched ON (engine off or on) and the starter stop unit detects voltage from IG1 relay output monitor as less than 2.5 V  for 0.5 s or more  while the engine is not being cranked.
Fail-safe  -
Possible cause 
  • IG1 relay malfunction
  • Start stop unit connector or terminal malfunction
  • Short to ground in wiring harness between IG1 relay terminal E and start stop unit terminal 2S
  • Start stop unit malfunction
G10938193