Acura DTC P1778 – Automatic Transaxle
DTC P1778 meaning on Acura
DTC P1778 in an Acura refers to a diagnostic trouble code related to the automatic transaxle. This code specifically indicates a problem with the step motor function within the automatic transaxle system.
Acura DTC P1778 symptoms
Symptoms of DTC P1778 in an Acura may include:
- Harsh shifting between gears
- Transmission slipping
- Delayed engagement when shifting
- Check Engine Light (CEL) illuminated on the dashboard
Acura DTC P1778 causes
Common causes of DTC P1778 in an Acura include:
- Malfunctioning step motor within the automatic transaxle
- Wiring or connector issues related to the step motor
- Low transmission fluid level or dirty fluid
- Internal mechanical issues within the transaxle
Acura DTC P1778 seriousness
DTC P1778 in an Acura should be addressed promptly as it can lead to further damage to the automatic transaxle system if left unresolved. Ignoring this code may result in more severe transmission problems and potential safety hazards.
How to diagnose DTC P1778 on Acura
To diagnose DTC P1778 on an Acura, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the trouble codes
- Inspect the wiring and connectors related to the step motor
- Check the transmission fluid level and condition
- Perform a road test to observe the shifting behavior
How to fix DTC P1778 on Acura
To fix DTC P1778 on an Acura, the following steps may be taken:
- Repair or replace the malfunctioning step motor
- Address any wiring or connector issues in the system
- Ensure the transmission fluid is at the correct level and in good condition
- If internal mechanical issues are found, consider rebuilding or replacing the transaxle
How to erase DTC P1778 on Acura
To erase DTC P1778 on an Acura, the code can be cleared using a diagnostic scanner. After the underlying issue has been addressed and fixed, the code can be cleared to reset the Check Engine Light and ensure the system is functioning properly.
Recommended tools for Acura 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.