Ford DTC P1464 – ACCS to PCM High During Self-Test
DTC P1464 meaning on Ford
DTC P1464 for Ford refers to “ACCS to PCM High During Self-Test.” This diagnostic trouble code indicates that the Accessory Control Circuit (ACCS) signal to the Powertrain Control Module (PCM) was detected as high during the self-test process.
Ford DTC P1464 symptoms
Symptoms of Ford DTC P1464 may include:
- Check Engine Light (MIL) illuminated
- Engine performance issues
- Possible stalling or rough idling
Ford DTC P1464 causes
Common causes of Ford DTC P1464 include:
- Faulty ACCS sensor
- Wiring or connection issues in the ACCS circuit
- PCM communication problems
Ford DTC P1464 seriousness
While DTC P1464 may not always result in immediate drivability issues, it is important to address this code promptly to prevent potential engine performance problems or further damage.
How to diagnose DTC P1464 on Ford
To diagnose DTC P1464 on a Ford vehicle, follow these steps:
- Use a diagnostic scanner to retrieve the trouble codes stored in the PCM.
- Inspect the ACCS sensor and its wiring for any visible damage or corrosion.
- Check the PCM connections and communication for any faults.
How to fix DTC P1464 on Ford
To fix DTC P1464 on a Ford vehicle, consider the following:
- Replace the faulty ACCS sensor if necessary.
- Repair any damaged wiring or connections in the ACCS circuit.
- If PCM communication issues are detected, address them accordingly.
How to erase DTC P1464 on Ford
To erase DTC P1464 on a Ford vehicle, use a diagnostic scanner to clear the trouble codes stored in the PCM. Ensure that the underlying issue causing the code has been resolved before clearing the code.
Recommended tools for Ford 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.