P1568: Idle Speed Control Throttle Position - Mechanical Malfunction
2 vehicles · 1 makes · $1,500-$3,500 repair
Most Reported On
P1568 is an OBD-II diagnostic trouble code meaning “Idle Speed Control Throttle Position - Mechanical Malfunction.” A Volkswagen/Audi-specific code (VAG fault 17976), described in VAG terms as a throttle actuator (J338) mechanical failure. The engine control module commanded an idle throttle position and the electronic throttle body did not mechanically reach it, usually because the throttle plate is binding, sticking, or restricted by carbon. Symptoms are typically a high, low, or hunting idle, stalling at stops, limp mode, and a check engine light. Other manufacturers use P1568 for unrelated faults, so confirm against your vehicle's make. This code is most commonly reported on 2012-2015 Honda Civic (Hybrid), and 2005-2007 Honda Accord, with repair costs ranging from $1,500 to $3,500.
Common Causes
Typical Repair Cost
Based on 2 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
P1568 does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
FAQ
What does P1568 mean?
P1568 stands for "Idle Speed Control Throttle Position - Mechanical Malfunction." A Volkswagen/Audi-specific code (VAG fault 17976), described in VAG terms as a throttle actuator (J338) mechanical failure. The engine control module commanded an idle throttle position and the electronic throttle body did not mechanically reach it, usually because the throttle plate is binding, sticking, or restricted by carbon. Symptoms are typically a high, low, or hunting idle, stalling at stops, limp mode, and a check engine light. Other manufacturers use P1568 for unrelated faults, so confirm against your vehicle's make.
What are the most common causes of P1568?
The most common causes of P1568 are: Carbon buildup in the throttle body restricting or sticking the throttle plate, Bent, binding, or damaged throttle plate or linkage, Throttle body basic setting/adaptation not performed after cleaning, replacement, or battery disconnect, Failed throttle actuator motor inside the throttle body, Faulty throttle position sensor within the throttle body assembly, Wiring, connector, or power/ground fault on the throttle body circuit. The specific cause varies by vehicle.
How much does it cost to fix P1568?
Repair costs for P1568 range from $1,500 to $3,500, depending on the vehicle and root cause.
Which vehicles are affected by P1568?
Au7o has documented P1568 across 2 vehicle models from 1 manufacturers: Honda.
Sources (4)
- NHTSANHTSA Vehicle Page for 2012 Honda Civic - includes complaints and investigations
- ForumReddit r/Honda thread discussing IMA battery failure on 2012 Civic Hybrid
- videoEricTheCarGuy - Honda Civic Hybrid IMA Battery Replacement and Diagnosis
- RecallNHTSA Campaign 05V025 - Ignition-Key Park-Interlock Recall
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.