SureTrack Real Fix: Audi A1 Throttle Trouble

by Ross Whiteley

Real Fixes from Mitchell 1’s SureTrack® expert information resource are documented issues from actual shop repair orders and community discussions. Read on to see how SureTrack can help you correct issues that are not easily diagnosed using OEM information alone. SureTrack is currently available free in our ProDemand product.

Car not shifting properly and no codes? Is it the transmission or something else? Follow this Real Fix to see how a bad camshaft position sensor caused the transmission to not shift at the proper speed.

Vehicle

2015 Audi A1 1.0L GB

Title

P1558, Replaced Electronic Throttle Control Motor

Complaint

The customer states that the check engine light is on.

Cause

Connected a scan tool and found code P1558 -Throttle Actuator (G186) – Electrical Malfunction. At idle, used a multi-meter to check for the presence of voltage and ground at the electronic throttle valve and found both were present. Used the scan tool to monitor live data and found that the electronic throttle valve parameter was not within specifications. Used a set of fused jumper wires to repeatedly apply voltage and ground to the electronic throttle valve, and found the valve was inoperative. Performed a visual inspection of the electronic throttle valve and found no obvious faults. These test results verified that the electronic throttle control motor was faulty.

Correction

Replaced the electronic throttle control motor, cleared codes, performed a road test and verified that the vehicle operated properly. The check engine light did not illuminate and no fault codes returned.

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About the Author

Ross Whiteley

Ross Whiteley, Product Marketing Manager of Repair Products for Mitchell 1, has held roles of increasing responsibility at Snap-on over the past 14 years. Previously, Ross served as Product Manager for SUN Collision, Mitchell 1’s sister company, and as a Client Services Manager at Mitchell 1. He began his career after high school as a UPS driver in 1997 and went on to earn his MBA in business management with a concentration in Project Management at Purdue University. In the interim, he held various positions in the auto industry, including roles as Service Consultant at Lithia Chrysler Dodge and Assistant Service Manager at Cascade Automotive.