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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 84 (HEV Control System Diagnosis (HEV)) >> DTC P0841: Transmission Fluid Pressure Sensor/Switch A Circuit Range/Performance >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

WARNING: This page is about a different variant/trim than selected.
Item Detecting Condition Possible Cause
CASE1 DTC Strategy
  • Voltage Rationality Check
  1. Engine Clutch Pressure Sensor Stuck.
  2. Faulty Oil pump system
  3. Faulty HCU.
Enable Conditions
  • IG KEY ON
  • HCU READY ON
  • Aux, Battery Voltage is between 10V and 16V
  • Failure Could not be detected with P0842, P0843
  • Gear Position = P/N
  • Clutch phase = Open
  • Engine Clutch Fluid Pressure = 0 bar
Threshold Value
  • Voltage is maintained within 2.0V ~ 4.5V range for 10sec.
DTC
  • 2 Driving Cycle
MIL On Condition
  • -
Service Lamp On Condition
  • 2 Driving Cycle
CASE2 DTC Strategy
  • Voltage Rationality Check
Enable Conditions
  • IG KEY ON
  • HCU READY ON
  • Aux, Battery Voltage is between 10V and 16V
  • Failure Could not be detected with P0842, P0843
  • Gear Position = D
  • No Can Communication Fault
  • Clutch phase = Lock-up
  • Engine Clutch Fluid Pressure ≥ 7 bar
Threshold Value
  • Voltage is lower than 1.0V and rate of charge of voltage is higher than 1.0V/ms for 10sec.
Diagnosis Time
  • 10s
DTC
  • 2 Driving Cycle
MIL On Condition
  • -
Service Lamp On Condition
  • 2 Driving Cycle
Service Lamp On Condition
  • Fault is continuous for 2 Driving Cycle
Mil On Condition
  • -
CAS3 DTC Strategy
  • Voltage Rationality Check
Enable Conditions
  • IG KEY ON
  • HCU READY ON
  • Aux, Battery Voltage is between 10V and 16V
  • Failure Could not be detected with P0842, P0843
  • Offset Compensation Completed
Threshold Value
  • 0.75 Bar <= Offset Error <= 20.0 Bar
Diagnosis Time
  • 10s
DTC
  • 2 Driving Cycle
MIL On Condition
  • -
Service Lamp On Condition
  • 2 Driving Cycle