Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mazda >> 2017 >> MX-5 Miata Club, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Door Locks >> On-Board Diagnostic - Retractable Fastback Control Module >> DTC U200B-16; Hall Effect Switch Power Supply Malfunction >> Notes

DTC U200B-16; Hall Effect Switch Power Supply Malfunction: Notes

Description Hall effect switch power supply malfunction
Detection condition
  • The retractable fastback control module detects Hall effect switch power supply voltage of less than 4 V.
Fail-safe
  • Stops retractable fastback operation
Possible cause
  • Short to ground in wiring harness between retractable fastback control module terminal 4P and front roof link motor (RH) terminal B
  • Short to ground in wiring harness between retractable fastback control module terminal 4T and front roof link motor (LH) terminal B
  • Short to ground in wiring harness between retractable fastback control module terminal 4Q and rear roof link motor (RH) terminal D
  • Short to ground in wiring harness between retractable fastback control module terminal 4U and rear roof link motor (RH) terminal D
  • Short to ground in wiring harness between retractable fastback control module terminal 4X and top lock motor terminal D
  • Retractable fastback control module malfunction
Fig 1: Retractable Fastback Control Module Communication Diagram (U200B 16)
G11275666Courtesy of MAZDA MOTORS CORP.