Chrysler 300M 2002 Service Manual page 281

8F - 12 BATTERY SYSTEM
BATTERY (Continued)
(4) Set an electronic digital multi-meter to its
highest amperage scale. Connect the multi-meter
between the disconnected battery negative cable ter-
minal clamp and the battery negative terminal post.
Make sure that the doors remain closed so that the
illuminated entry system is not activated. The multi-
meter amperage reading may remain high for up to
three minutes, or may not give any reading at all
while set in the highest amperage scale, depending
upon the electrical equipment in the vehicle. The
multi-meter leads must be securely clamped to the
battery negative cable terminal clamp and the bat-
tery negative terminal post. If continuity between the
battery negative terminal post and the negative cable
terminal clamp is lost during any part of the IOD
test, the electronic timer function will be activated
and all of the tests will have to be repeated.
(5) After about three minutes, the high-amperage
IOD reading on the multi-meter should become very
low or nonexistent, depending upon the electrical
equipment in the vehicle. If the amperage reading
remains high, remove and replace each fuse or circuit
breaker in the Power Distribution Center (PDC) and
then in the Junction Block (JB), one at a time until
the amperage reading becomes very low, or nonexist-
ent. Refer to the appropriate wiring information in
this service manual for complete PDC and JB fuse,
circuit breaker, and circuit identification. This will
isolate each circuit and identify the circuit that is the
source of the high-amperage IOD. If the amperage
reading remains high after removing and replacing
each fuse and circuit breaker, disconnect the wire
harness from the generator. If the amperage reading
now becomes very low or nonexistent, refer to Charg-
ing System for the proper charging system diagnosis
and testing procedures. After the high-amperage IOD
has been corrected, switch the multi-meter to pro-
gressively lower amperage scales and, if necessary,
repeat the fuse and circuit breaker remove-and-re-
place process to identify and correct all sources of
excessive IOD. It is now safe to select the lowest mil-
liampere scale of the multi-meter to check the low-
amperage IOD.
CAUTION: Do not open any doors, or turn on any
electrical accessories with the lowest milliampere
scale selected, or the multi-meter may be damaged.
(6) Observe the multi-meter reading. The low-am-
perage IOD should not exceed thirty-five milliam-
peres (0.035 ampere). If the current draw exceeds
thirty-five milliamperes, isolate each circuit using the
fuse and circuit breaker remove-and-replace process
in Step 5. The multi-meter reading will drop to
within the acceptable limit when the source of the
excessive current draw is disconnected. Repair this
circuit as required; whether a wiring short, incorrect
switch adjustment, or a component failure is at fault.
REMOVAL
The battery is accessible without removing
the right front wheel and tire assembly..
(1) Verify that the ignition switch and all accesso-
ries are OFF.
(2) Turn the steering wheel to the full right posi-
tion.
(3) Disconnect and isolate the negative battery
cable remote terminal from the remote battery post.
WARNING: NEVER GET UNDER A LIFTED VEHICLE
IF NOT SUPPORTED PROPERLY ON SAFETY
STANDS.
(4) Remove the air cleaner housing. Refer to the
index for the location of the procedure.
(5) Remove battery splash shield. Refer to the
Body section of the service manual for the procedure.
(6) Disconnect the
equipped.
(7) Remove the two short bolts from the battery
hold down and remove the hold down.
(8) Disconnect the positive battery cable from the
battery.
(9) Slide the battery toward rear of vehicle.
(10) Disconnect the negative battery cable from
the battery.
(11) Remove battery from vehicle.
INSTALLATION
(1) Position the battery in the battery tray.
(2) Connect the positive and negative battery
cables. Torque to 16 N·m (150 in. lbs.).
(3) Connect the heater blanket cord, if equipped.
(4) Install the battery hold down and install the
hold down bolt. Torque to 16 N·m (150 in. lbs.).
(5) Install battery splash shield. Refer to the Body
section for the procedure.
(6) Install the air cleaner housing.
(7) Connect the negative battery cable.
heater blanket cord,
LH
if