|DTC Code||DTC Name|
|P0194||Fuel Rail Pressure Sensor Circuit Intermittent|
|DTC No.||Detection Item||DTC Detection Condition||Trouble Area||MIL||Memory|
|P0194||Fuel Rail Pressure Sensor Circuit Intermittent||
ECM internal error
(1 trip detection logic)
||Comes on||DTC stored|
|DTC No.||DTC Detection Drive Pattern|
|P0194||Drive the vehicle with a stop-and-go city drive pattern for more than 15 minutes.|
CAUTION / NOTICE / HINT
When replacing the ECM, perform ECM Initialization and Registration.
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When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing a new ECM, perform all of the initialization and registration procedures for the "Learning Values Write" function by following the instructions shown on the GTS display.
Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
Replace the ECM.
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CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs.Powertrain > Engine and ECT > Clear DTCs
Turn the ignition switch off and wait for 30 seconds or more.
Start the engine.
Drive the vehicle with a stop-and-go city drive pattern for more than 15 minutes.
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
Confirm that the DTC is not output again.Powertrain > Engine and ECT > Trouble Codes
Perform the following procedure using the GTS to determine whether or not the DTC judgment has been carried out.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.Powertrain > Engine and ECT > Utility
Input DTC P0194.
Check that STATUS is NORMAL. If STATUS is INCOMPLETE or N/A, repeat the confirmation driving pattern process.