Chrysler Crossfire. Manual — part 197
*REAR WINDOW DEFOGGER INOPERATIVE (CONTINUED)
POSSIBLE CAUSES
REAR WINDOW DEFOGGER FUSED B(+) CIRCUIT OPEN
REAR WINDOW DEFOGGER GRID OPEN
REAR WINDOW DEFOGGER GRID GROUND CIRCUIT OPEN
CENTRAL LOCKING PUMP/SECURITY SYSTEM MODULE
For a complete Heated Glass Circuit Diagram (Refer to 8 - ELECTRICAL/HEATED GLASS - SCHEMATICS AND
DIAGRAMS).
Diagnostic Test
1.
INSPECT THE REAR WINDOW DEFOGGER INDICATOR ON THE A/C HEATER CONTROL MODULE
Turn the ignition on.
Activate the Rear Window Defogger.
Is the rear window defogger indicator blinking?
Yes
>> Lower the electrical load on the vehicle until the light stops blinking. Once the rear window defogger
indicator stops blinking, the system will resume normal operation.
Perform BODY VERIFICATION TEST.
No
>> Go to 2
2.
MEASURE REAR WINDOW DEFOGGER FUSED B(+) CIRCUIT VOLTAGE
Note: Inspect Fuse 25 located in the Underhood Accessory Fuse Block. If the fuse is open, repair the cause
of the open fuse before continuing.
Turn the ignition off.
Disconnect the Central Locking Pump/Security System Module (CLP/
SSM) harness connector.
Note: Check connector - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage of the Fused B(+) circuit at the CLP/SSM C2 har-
ness connector.
Is the voltage above 10 volts?
Yes
>> Go to 3
No
>> Repair the CLP/SSM Fused B(+) circuit for an open.
Perform BODY VERIFICATION TEST.
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HEATED GLASS - ELECTRICAL DIAGNOSTICS
8G - 7
*REAR WINDOW DEFOGGER INOPERATIVE (CONTINUED)
3.
MEASURE REAR WINDOW DEFOGGER GRID VOLTAGE
Turn the ignition off.
Reconnect the CLP/SSM C2 harness connector.
Disconnect the Rear Window Defogger Grid harness connector termi-
nal 1.
Note: Check connector - Clean/repair as necessary.
Turn the ignition on.
Activate the Rear Window Defogger.
Measure the voltage at the Rear Window Defogger Grid harness con-
nector terminal 1.
Is the voltage above 10 volts?
Yes
>> Repair the Rear Window Defogger Ground circuit for an
open.
Perform BODY VERIFICATION TEST.
No
>> Go to 4
4.
MEASURE REAR WINDOW DEFOGGER SUPPLY CIRCUIT VOLTAGE
Turn the ignition off.
Disconnect the Rear Window Defogger Grid harness connector termi-
nal 2.
Note: Check connector - Clean/repair as necessary.
Turn the ignition on.
Activate the Rear Window Defogger.
Measure the voltage at the Rear Window Defogger Grid harness con-
nector terminal 2.
Is the voltage above 10 volts?
Yes
>> Repair or replace the Rear Window Defogger Grid. (Refer
to 8 - ELECTRICAL/HEATED GLASS/REAR WINDOW
DEFOGGER GRID - STANDARD PROCEDURE).
Perform BODY VERIFICATION TEST.
No
>> Go to 5
8G - 8
HEATED GLASS - ELECTRICAL DIAGNOSTICS
ZH
*REAR WINDOW DEFOGGER INOPERATIVE (CONTINUED)
5.
MEASURE REAR WINDOW DEFOGGER SUPPLY CIRCUIT RESISTANCE
Turn the ignition off.
Disconnect the CLP/SSM C2 harness connector.
Measure the resistance of the Rear Window Defogger Grid Supply cir-
cuit from the CLP/SSM C2 harness connector to the Rear Window
Defogger Grid harness connector terminal 2.
Is the resistance below 5.0 ohms?
Yes
>> Replace the Central Locking Pump/Security System Mod-
ule. (Refer to 8 - ELECTRICAL/VEHICLE THEFT SECU-
RITY/SENTRY
KEY
REMOTE
ENTRY
MODULE
-
REMOVAL).
Perform BODY VERIFICATION TEST.
No
>> Repair the Rear Window Defogger Grid Supply circuit for
an open.
Perform BODY VERIFICATION TEST.
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HEATED GLASS - ELECTRICAL DIAGNOSTICS
8G - 9
BODY VERIFICATION TEST
BODY VERIFICATION TEST
1.
Turn the ignition off.
Disconnect all jumper wires and reconnect all previously disconnected components and connectors.
Note: If the SKREEM or the PCM was replaced, refer to the service information for proper programming
procedures.
If the Body Control Module was replaced, turn the ignition on for 15 seconds (to allow the new BCM to learn VIN)
or engine may not start.
Program all RKE transmitters and other options as necessary.
With the DRB III
T
, erase all Diagnostic Trouble Codes (DTCs) from ALL modules. Start the engine and allow it to
run for 2 minutes. Operate all functions of the system that caused the original complaint.
Ensure that all accessories are turned off and the battery is fully charged.
Turn the ignition off and wait 5 seconds. Turn the ignition on and using the DRB III
T
, read DTCs from ALL modules.
Are any DTCs present or is the original complaint still present?
Are any DTCs present?
YES
>> Repair is not complete, refer to appropriate symptom.
NO
>> Repair is complete.
8G - 10
HEATED GLASS - ELECTRICAL DIAGNOSTICS
ZH
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