
Diagnostic procedure

Dtc b1231
Dtc b1869, b1870Mazda 6 Service Manual: Battery Recharging
NOTE
Before performing maintenance or recharging the battery, turn off all
accessories and stop the engine.
To disconnect the battery, remove the negative cable first. Install it
last when connecting the battery.
Be sure to remove the caps before recharging the battery.
I ...
Mazda 6 Service Manual: Road test
Warning
When performing a road test, be aware of other vehicles, people,
impediments, etc. to avoid an accident.
Note
When the legal speed limit must be exceeded, use a chassis
dynamomenter instead of performing a road test.
Road Test Preparation
1. Inspect the engine coolant le ...