BMW P1591: Throttle Actuation Potentiometer Signal Too High (Right Side)

Is your scanner showing BMW P1591?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

BMW P1591: Throttle Actuation Potentiometer Signal Too High (Right Side)

OVERVIEW
Severity
:
High
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$100-$1000
Can I Still Drive?
:
No

What Does The BMW P1591 Code Mean?

Engine started, battery voltage must be at least 11.5v, all electrical components must be off, parking brake must be engaged (to keep daytime driving lights off), automatic transmission selector must be in park, the exhaust system must be properly sealed.

What Are The Potential Causes Of The BMW P1591 Code?

  • Throttle valve control module is faulty
  • Throttle valve is damaged or dirty
  • Throttle valve must be in closed throttle position
  • Accelerator pedal is out of adjustment (AEG engines only)
  • Throttle position actuator is shorting to ground or power

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> 13547502444 Throttle Body Compatible with BMW 325i 325Ci 325xi 525i X3 Z3 Z4
>>> BMW Accelerator Pedal Module - VNE 35406889822
>>> Twippo 372Pcs Waterproof Wire Connectors Kit

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

BMW P1591, DTCDECODE.

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