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 P0705:
- TR switch malfunction.
- Short to power or ground in TR circuit(s) between TR switch and PCM.
- Damaged connectors or wiring harness between TR switch and PCM.
- PCM malfunction.