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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 120 (Air Conditioning System Diagnosis (HEV)) >> DTC B1812: Vehicle Speed Sensor (TCU) Fault CAN Signal >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Check CAN signal.
  1. Faulty vehicle speed sensor.
  2. CAN Communication.
Enable Conditions
  • Ignition ON.
Threshold Value
  • No signal via CAN for 1.5 seconds or Error value received.
Fail-Safe
  • Substitued vehicle speed = 0 MPH
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