Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 386
*NO RESPONSE FROM TCM (TRANSMISSION CONTROL MODULE) – NGC
For a complete wiring diagram Refer to Section 8W.
8E - 234
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
LX
Possible Causes
(A209) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z904) GROUND CIRCUIT OPEN
(F202) FUSED IGNITION SW OUTPUT CIRCUIT OPEN OR SHORTED
(D65) CAN C BUS (+) CIRCUIT OPEN
(D64) CAN C BUS (-) CIRCUIT OPEN
POWERTRAIN CONTROL MODULE
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.
With the scan tool, select ECU View.
NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active
on the Bus network. A green check indicates that the module is active on the Bus network.
NOTE: Check the FCM for any active CAN C hardware DTCs, perform DTC before proceeding.
Does the scan tool display a red X next to the module?
Yes
>> Go To 2
No
>> The no response condition is not present at this time. Using the wiring diagram/schematic as a guide,
inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness con-
nectors for broken, bent, pushed out, and corroded terminals.
2.
ATTEMPT TO COMMUNICATE WITH THE PCM
With the scan tool in ECU view, observe the status of the PCM.
Does the scan tool display a red X next to the PCM?
Yes
>> Refer to the No Response From PCM test procedure. Refer to the table of contents in this section.
No
>> Go To 3
3.
(Z904) GROUND CIRCUIT OPEN
Turn the ignition off.
Disconnect the PCM C4 harness connector.
CAUTION: Do not probe the PCM harness connectors. Probing the
PCM harness connectors will damage the PCM terminals resulting
in poor terminal to pin connection. Install Miller Special Tool #8815
to perform diagnosis.
Using a 12-volt test light connected to 12-volts, check each (Z904)
ground circuit.
Does the test light illuminate brightly for each circuit?
Yes
>> Replace and program the Powertrain Control Module in
accordance with the service information.
No
>> Repair the (Z904) ground circuit for an open.
Perform the appropriate TRANSMISSION VERIFICATION
TEST.
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ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 235
*NO RESPONSE FROM VES (MONITOR/DVD MEDIA SYSTEM)
For a complete wiring diagram Refer to Section 8W.
8E - 236
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
LX
Possible Causes
(A300) FUSED B (+) CIRCUIT OPEN OR SHORTED
(Z909) GROUND CIRCUIT OPEN
(D55) AND (D54) CAN B BUS CIRCUITS OPEN
MONITOR/DVD MEDIA SYSTEM
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts.
With the scan tool, select ECU View.
NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active
on the Bus network. A green check indicates that the module is active on the Bus network.
Does the scan tool display a red X next to the module?
Yes
>> Go To 2
No
>> The no response condition is not present at this time. Using the wiring diagram/schematic as a guide,
inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness con-
nectors for broken, bent, pushed out, and corroded terminals.
2.
(A300) FUSED B(+) CIRCUIT OPEN OR SHORTED
Turn the ignition off.
Disconnect the Monitor/DVD Media System harness connector.
Using a 12-volt test light connected to ground, check the (A300) Fused
B(+) circuit.
Does the test light illuminate brightly?
Yes
>> Go To 3
No
>> Repair the (A300) Fused B(+) circuit for an open or short.
Perform BODY VERIFICATION TEST – VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
LX
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 237
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