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Home >> Mazda >> 2023 >> MX-5 Miata Club >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> On-Board Diagnostic - Start Stop Unit >> DTC B10C8-1F: Keyless Antenna (Interior, Center) Circuit Malfunction [Start Stop Unit] >> Notes

DTC B10C8-1F: Keyless Antenna (Interior, Center) Circuit Malfunction [Start Stop Unit]: Notes

DTC B10C8:1F (START STOP UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

Description Keyless antenna (interior, center) circuit malfunction
Detection condition
  • Start stop unit detects an open circuit or short to ground in the keyless antenna (interior, center) circuit with the ignition switched off.
Fail-safe
  • Inhibits the door lock/unlock control using the advanced keyless entry system.
Possible cause
  • Keyless antenna (interior, center) connector or terminal malfunction
  • LF control unit connector or terminal malfunction
  • Short to ground in wiring harness between the following terminals:
    • LF control unit terminal V-Keyless antenna (interior, center) terminal B
    • LF control unit terminal T-Keyless antenna (interior, center) terminal A
  • Open circuit in wiring harness between the following terminals:
    • LF control unit terminal V-Keyless antenna (interior, center) terminal B
    • LF control unit terminal T-Keyless antenna (interior, center) terminal A
  • LF control unit malfunction
  • Keyless antenna (interior, center) malfunction
  • Start stop unit malfunction
G15747494Courtesy of MAZDA MOTORS CORP.