Possible Causes
WARNING: This page is about a different car, the 2002 Mazda 626 and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
Following items are possible causes for DTC P1783:
- Transaxle cooling system malfunction.
- Excessive load.
- Damaged transaxle clutch(es).
- Incorrect ATF fluid level.
- Damaged or corroded transaxle harness connector.