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Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Warning Systems >> Wheels & Tires System (DTC/Circuit Diagnosis) (Except Hybrid) >> DTC/Circuit Diagnosis >> DTC C1729: Vehicle Speed Signal >> DTC Logic >> DTC Detection Logic

DTC Detection Logic

DTC

Display Item

Malfunction detected condition

Possible causes

C1729

VHCL SPEED SIG ERR

Vehicle speed signal not detected.
  • CAN communication malfunction
  • Low tire pressure warning control unit malfunction
  • ABS actuator and electric unit (control unit) malfunction
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