P1356 – Audi DTC

Audi DTC P1356 – Cylinder 1, ignition circuit Short to B+

DTC P1356 meaning on Audi

DTC P1356 on an Audi indicates a fault in the ignition circuit of cylinder 1, specifically a short to B+ (battery positive). This means that there is an unintended connection between the ignition system of cylinder 1 and the positive battery terminal, causing a disruption in the proper functioning of the ignition system.

Audi DTC P1356 symptoms

Symptoms of DTC P1356 on an Audi may include rough idling, misfiring, loss of power, engine hesitation, and in some cases, the Check Engine Light may illuminate on the dashboard. The vehicle may also experience difficulty starting or have poor acceleration.

Audi DTC P1356 causes

The common causes of DTC P1356 on an Audi include a faulty ignition coil, damaged wiring in the ignition circuit, poor electrical connections, or a problem with the Engine Control Module (ECM). Additionally, corrosion or moisture in the electrical components can also lead to this fault code.

Audi DTC P1356 seriousness

Ignoring DTC P1356 on an Audi can lead to poor engine performance, reduced fuel efficiency, and potential damage to the catalytic converter. It is important to address this issue promptly to prevent further complications and ensure the vehicle operates optimally.

How to diagnose DTC P1356 on Audi

To diagnose DTC P1356 on an Audi, start by using a diagnostic scanner to retrieve the fault code and perform a visual inspection of the ignition system components, including the ignition coil, spark plugs, and wiring. Check for any visible damage or loose connections. Use a multimeter to test the continuity and resistance of the ignition circuit components to pinpoint the source of the short to B+.

How to fix DTC P1356 on Audi

To fix DTC P1356 on an Audi, begin by addressing the root cause of the issue. Replace any faulty ignition coils, repair damaged wiring, and ensure all electrical connections are secure. Clear the fault code using a diagnostic scanner after making the necessary repairs. Test drive the vehicle to confirm that the issue has been resolved and that the symptoms have disappeared.

How to erase DTC P1356 on Audi

To erase DTC P1356 on an Audi, use a diagnostic scanner to access the vehicle’s onboard computer system. Navigate to the DTC menu, locate the P1356 fault code, and select the option to clear or erase the code. Once the code has been successfully cleared, restart the vehicle to ensure the Check Engine Light is no longer illuminated, indicating that the fault code has been erased.

Recommended tools for Audi diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.