DTC U2510/P1260, U1147/P1260: Communication Error Between Keyless Control Module And PCM (No Response); Communication Error Between Keyless Control Module And PCM (Mismatched Conditions): Notes

WARNING: This page is about a different car, the 2005 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Security Light: 16, DTC U2510/P1260 And U1147/P1260 Detection Condition And Possible Cause

Courtesy of MAZDA MOTORS CORP.