P1191 – Hyundai DTC

Hyundai DTC P1191 – Electronic throttle system (ETS), limp-home valve – malfunction

DTC P1191 meaning on Hyundai

DTC P1191 on a Hyundai refers to a malfunction in the Electronic Throttle System (ETS) limp-home valve. This code indicates that there is an issue with the operation of the limp-home valve within the electronic throttle system.

Hyundai DTC P1191 symptoms

Symptoms of DTC P1191 on a Hyundai may include:

• Reduced engine power
• Engine stalling
• Difficulty accelerating
• Check Engine Light illuminated

Hyundai DTC P1191 causes

Common causes of DTC P1191 on a Hyundai include:

• Malfunctioning limp-home valve
• Faulty electronic throttle system components
• Wiring or connection issues
• Software glitches

Hyundai DTC P1191 seriousness

The seriousness of DTC P1191 on a Hyundai depends on the underlying cause. If left unresolved, it can lead to drivability issues and potential safety concerns. It is recommended to address this issue promptly to prevent further damage or inconvenience.

How to diagnose DTC P1191 on Hyundai

To diagnose DTC P1191 on a Hyundai, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the trouble codes
2. Inspect the electronic throttle system components for any visible damage
3. Check the wiring and connections for any signs of wear or corrosion
4. Perform a throttle body inspection and cleaning
5. Test the limp-home valve for proper operation

How to fix DTC P1191 on Hyundai

To fix DTC P1191 on a Hyundai, the following steps may be taken:

1. Replace the malfunctioning limp-home valve
2. Repair or replace any faulty electronic throttle system components
3. Repair any damaged wiring or connections
4. Update the software if necessary
5. Clear the trouble codes and perform a test drive to ensure the issue is resolved

How to erase DTC P1191 on Hyundai

To erase DTC P1191 on a Hyundai, follow these steps:

1. Use a diagnostic scanner to clear the trouble codes
2. Disconnect the battery for a few minutes to reset the system
3. After performing the necessary repairs, clear the codes again to ensure they do not return

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