
Diagnostic procedure

Dtc p0751
Dtc p0753Mazda 6 Service Manual: Engine Start Function When Key Battery is Dead
CAUTION
When starting the engine by holding the transmitter over the push button start
due to a dead key battery or a malfunctioning key, be careful not to allow the following,
otherwise the signal from the key will not be received correctly and the engine
may not start.
Metal parts of ot ...
Mazda 6 Service Manual: Drive belt auto tensioner inspection
1. Remove the drive belt. (See DRIVE BELT REPLACEMENT.)
2. Verify that the drive belt auto tensioner moves smoothly in the
operational direction.
Replace the drive belt auto tensioner if necessary.
3. Turn the drive belt auto tensioner pulley by hand and verify that it
rotates smoothly ...