Chrysler 2005 Crossfire SRT6 Service Manual page 826

8F - 14 BATTERY SYSTEM
• Faulty or shorted electronic modules and components.
• An internally shorted generator.
• Intermittent shorts in the wiring.
If the IOD is over thirty-five milliamperes, the problem must be found and corrected before replacing a battery. In
most cases, the battery can be charged and returned to service after the excessive IOD condition has been cor-
rected.
1. Verify that all electrical accessories are off. Turn off all lamps, remove the ignition key, and close all doors. If the
vehicle is equipped with an illuminated entry system or an electronically tuned radio, allow the electronic timer
function of these systems to automatically shut off (time out). This may take up to three minutes. See the Elec-
tronic Module Ignition-Off Draw Table for more information.
ELECTRONIC MODULE IGNITION-OFF DRAW (IOD)
Module
Controller Antilock
Brake (CAB)
Body Control Module
(BCM)
Powertrain Control
Module (PCM)
Transmission Control
Module (TCM)
Instrument Cluster
Shift Lever Assembly
Garage Door Opener
/ Tire Pressure
Monitor
A/C Heater Control
Module
Occupant Restraint
Control Module
Pneumatic System
Equipment (PSE)
Control Module
RKE Module
2. Disconnect the negative battery cable.
3. Set an electronic digital multi-meter to its highest amperage scale. Connect the multi-meter between the discon-
nected battery negative cable terminal 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 battery 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 elec-
tronic timer function will be activated and all of the tests will have to be repeated.
4. After about three minutes, the high-amperage IOD reading on the multi-meter should become very low or non-
existent, depending upon the electrical equipment in the vehicle. If the amperage reading remains high, remove
each fuse in the Underhood Accessory Fuse Block, one at a time until the amperage reading becomes very low,
or nonexistent. If the amperage reading is still high, remove each fuse one at a time in the Illumination Control
Module until the amperage reading becomes very low or nonexistent. If the amperage reading is still high,
remove each fuse one at a time in the Relay Control Module until the amperage reading becomes very low or
nonexistent. Refer to the appropriate wiring information in this service manual for complete Underhood Accessory
Fuse, Illumination Control Module Fuse, Relay Control Module Fuse and circuit identification. This will isolate
Time Out? (If Yes, Interval And Wake-Up
Input)
No
No
No
No
No
No
No
No
No
No
No
IOD After Time
IOD
Out
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
ZH