Engine-Codes - Generic - P1191

P1191 - Electronic Throttle System Limp Home Valve On

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P1191 Possible Causes

  • Faulty Electronic Throttle System (ETS) Motor
  • Faulty Electronic Throttle System (ETS)
  • Electronic Throttle System(ETS)unit
  • Electronic Throttle System(ETS) harness is open or shorted
  • Electronic Throttle System(ETS) circuit poor electrical connection

How do I fix code P1191?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the P1191 code

Labor: 1.0

The cost of diagnosing the P1191 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1191 Meaning

The Electronic Throttle System (ETS) consists of ETS unit, ETS-motor, Accelerator Position Sensor (APS),Throttle Position Sensor (TPS) and Limp home valve.
Among above-mentioned parts, Limp home valve is attached under the throttle body and helps air to flow from the outside through this valve to the engine combustion chamber to prevent the vehicle from engine stall when Powertrain Control Module (PCM) detects ETS system malfunction.

P1191 More Information

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