DTC B109A 14: Headlight Hi Relay Circuit Malfunction: Notes

DTC B109A 14 DETECTION CONDITION AND POSSIBLE CAUSE

Description	Headlight HI relay circuit malfunction
Detection condition	Front body control module (FBCM) detects an open circuit or short to ground in the headlight HI relay circuit with the ignition switched ON (engine off or on).
Fail-safe function	Not applicable
Possible cause	Headlight HI relay malfunction Front body control module (FBCM) connector or terminal malfunction Short to ground in wiring harness between headlight HI relay terminal E and front body control module (FBCM) terminal 2X Open circuit in wiring harness between headlight HI relay terminal E and front body control module (FBCM) terminal 2X Front body control module (FBCM) malfunction
Courtesy of MAZDA MOTORS CORP.