Mazda CX-9 Grand Touring 2009 Manual page 554

VOLTAGE SPECIFICATION
Battery temp. (°C {°F}) Minimum voltage (V)
4 {39}
10 {50}
16 {61}
21 {70}
BACK-UP CURRENT
1. Verify that the ignition switch is off (key has been removed) and that all doors are closed.
2. Disconnect the negative battery cable.
3. Connect the tester between the negative battery terminal and negative battery cable, leave the battery
undisturbed for 30 min , and then measure the back-up current.
If not within the specification, measure the back-up current while removing the fuses one by one
from the inside of the main fuse block and the inside of the fuse block.
NOTE:
CAUTION:
NOTE:
Battery back-up current (When the ignition switch is off, the ignition key is removed, and all doors
are closed.)
Vehicles with immobilizer system: 50-60 mA
Vehicles without immobilizer system: 55 mA or less
4. Inspect and repair wiring harnesses and connectors of the fuse where the current has decreased.
BATTERY RECHARGING [MZI-3.7]
2008 Mazda CX-9 Grand Touring
2008 ENGINE Charging System (MZI-3.7) - Mazda CX-9
9.3
9.4
9.5
9.6
If the battery is not left undisturbed for 30 min , the tester will indicate
a high value (approx. 300 mA) .
If the key or any electrical accessory is operated within approx. 30
min after the tester is connected, the battery must be left undisturbed
for approx. 30 min from that point.
Operating electrical loads while the back-up current is being
measured can damage the tester.
For vehicles with the immobilizer system, the system periodically
shifts synchronization of the security light flashing. Therefore, 60 mA
(0.1 s) current is supplied when the security light is illuminated, and
50 mA (2 s) current is supplied when the security light is not
illuminated. In addition, the measuring instrument, which shows the
average value, indicates around 55 mA .