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Home >> Kia >> 2023 >> Sorento Plug-In Hybrid SX Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Engine Control System Diagnosis (PHEV) (07 Of 10)) >> DTC P1521-00: Engine Coolant Temperature Sensor Circuit High (EHRS) >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2024 Kia Sorento. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • Signal check, high
  • Poor connector connection
  • Open or short to battery in signal circuit
  • Open in ground circuit
  • Faulty exhaust heat recovery sensor
Enable Conditions
  • Auxiliary battery voltage (6 to 16V)
Threshold Value
  • Sensor voltage is greater than 4.9V
Diagnostic Time
  • -
MIL ON Condition
  • -
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