Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 779

4.

SKREEM

NOTE: A dirty (partial) ground can cause abnormal conditions within a system. Ensure the module has a
good ground before continuing.
Turn the ignition off.

Reconnect the SKREEM connector

Back probe the Fused Ignition Switch Output (Run-Start) circuit.

Start the engine.

Using the scan tool, view battery voltage under Data Display in the Engine category.

Compare the voltage on the scan tool to the voltage reading on the voltmeter.

Is the voltage on the scan tool equal to the voltmeter reading +/- .5 volt?

Yes

>> Replace and program the SKREEM in accordance with the Service Information.

Perform SKREEM VERIFICATION TEST.

No

>> Repair the Fused Ignition Switch Output (Run-Start) circuit for high resistance.

Perform SKREEM VERIFICATION TEST.

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B2102-IGNITION RUN/START INPUT HIGH

For a complete wiring diagram Refer to Section 8W.

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•

When Monitored:
With the ignition switch on.

•

Set Condition:
The SKREEM has detected the ignition switch input voltage above a calibrated value.

Possible Causes

FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT

SKREEM

Diagnostic Test

1.

DETERMINING IF DTC IS CURRENT

NOTE: Diagnose any related Powertrain DTC(s) before continuing.
With a scan tool, read and record DTC(s).

With the scan tool, clear DTC(s).

Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 90 seconds per cycle.

Using the scan tool, read DTC(s).

Does the DTC reset?

Yes

>> Go To 3

No

>> Go to 2

2.

INTERMITTENT CONDITION

NOTE: Check for any of the follow conditions:

•

Poor wire to terminal connection

•

Corroded terminals

•

Backed out or loose terminals

•

Broken wire internal to the insulation

•

Dirty (partial) module ground

With the ignition on, wiggle the related wires.

Using a scan tool, read DTC(s).

Does the DTC reset?

Yes

>> Repair the wiring as necessary.

Perform SKREEM VERIFICATION TEST.

No

>>

DTC is not active at this time. Test complete.

3.

FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT SHORTED TO BATTERY VOLTAGE

NOTE: A dirty (partial) ground can cause abnormal conditions within a system. Ensure the module has a
good ground before continuing.
Turn the ignition off.

Disconnect the SKREEM harness connector.

Using a 12 volt test light connected to ground, probe the Fused Ignition Switch Output (Run-Start) circuit in the
SKREEM harness connector.

Does the test light illuminate brightly?

Yes

>> Repair the Fused Ignition Switch Output (Run-Start) circuit for a short to voltage.

Perform SKREEM VERIFICATION TEST.

No

>> Replace and program the SKREEM in accordance with the Service Information.

Perform SKREEM VERIFICATION TEST.

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B210A-SYSTEM VOLTAGE LOW

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
With the ignition switch on.

•

Set Condition:
The SKREEM has detected the system voltage is below a calibrated value.

Possible Causes

FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN

FUSED (B+) CIRCUIT OPEN

SKREEM

Diagnostic Test

1.

DETERMINING IF DTC IS CURRENT

NOTE: Diagnose any related Powertrain DTC(s) before continuing.
With a scan tool, read and record DTC(s).

With the scan tool, clear DTC(s).

Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 90 seconds per cycle.

Using the scan tool, read DTC(s).

Does the DTC reset?

Yes

>> Go To 3

No

>> Go to 2

2.

INTERMITTENT CONDITION

NOTE: Check for any of the follow conditions:

•

Poor wire to terminal connection

•

Corroded terminals

•

Backed out or loose terminals

•

Broken wire internal to the insulation

•

Dirty (partial) module ground

With the ignition on, wiggle the related wires.

Using a scan tool, read DTC(s).

Does the DTC reset?

Yes

>> Repair the wiring as necessary.

Perform SKREEM VERIFICATION TEST.

No

>>

DTC is not active at this time. Test complete.

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VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS

8Q - 87