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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 B1685: Engine RPM Fault - CAN Signal >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Monitor CAN signal
  1. CAN Communication
Enable Conditions
  • Ignition ON
Threshold Value
  • No signal via CAN for 1.5 seconds or Error value received
Fail-Safe
  • Substituted RPM = 0 RPM
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