Chrysler Sebring, Stratus sedan, Sebring Convertible. Manual - part 161

TEST

ACTION

APPLICABILITY

Turn the ignition off.
Disconnect the DRBIII

t from the DLC.

Disconnect the PCM harness connectors.
Measure the resistance between the PCM SCI Transmit circuit and the PCM SCI
Receive circuit at the Data Link harness connector (cavs 7 and 12).
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the short between the PCM SCI Transmit and the PCM

SCI Receive circuits.
Perform POWERTRAIN VERIFICATION TEST VER - 1.

→ Go To 5

Turn the ignition off.
Disconnect the PCM harness connectors.
Disconnect the DRBIII

t from the DLC.

Measure the resistance between ground and the PCM SCI Transmit circuit at the
Data Link harness connector (cav 7).
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the PCM SCI Transmit circuit for a short to ground.

Perform POWERTRAIN VERIFICATION TEST VER - 1.

→ Go To 6

Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the DRBIII

t from the DLC.

Measure the resistance between ground and the PCM SCI Receive circuit in the Data
Link harness connector (cav 12).
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the PCM SCI Receive circuit for a short to ground.

Perform POWERTRAIN VERIFICATION TEST VER - 1.

→ Go To 7

Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the DRBIII

t from the DLC.

CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the PCM SCI Receive circuit from the Data Link harness
connector (cav 12) to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 8

→ Repair the PCM SCI Receive circuit for an open.

Perform POWERTRAIN VERIFICATION TEST VER - 1.

COMMUNICATION

*NO RESPONSE FROM PCM (PCM SCI ONLY) —

Continued

TEST

ACTION

APPLICABILITY

Turn the ignition off.
Disconnect the PCM harness connector.
Disconnect the DRBIII

t from the DLC.

CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the PCM SCI Transmit circuit from the Data Link harness
connector (cav 7) to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 9

→ Repair the PCM SCI Transmit circuit for an open.

Perform POWERTRAIN VERIFICATION TEST VER - 1.

If there are no possible causes remaining, view repair.

All

Repair

Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 1.

COMMUNICATION

*NO RESPONSE FROM PCM (PCM SCI ONLY) —

Continued

Symptom:

*NO RESPONSE FROM SENTRY KEY IMMOBILIZER MODULE

POSSIBLE CAUSES

ATTEMPT TO COMMUNICATE WITH THE BCM

GROUND CIRCUIT OPEN

FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN

FUSED B(+) CIRCUIT OPEN

SENTRY KEY IMMOBILIZER MODULE (SKIM)

PCI BUS CIRCUIT OPEN

BODY CONTROL MODULE

TEST

ACTION

APPLICABILITY

Turn the ignition on.
With the DRB, enter Body then Body Computer.
Was the DRB able to I/D or communicate with the BCM?

All

Yes

→ Go To 2

→ Refer to the symptom list for problems related to no communica-

tion with the BCM.
Perform SKIS VERIFICATION.

Turn the ignition off.
Disconnect the SKIM harness connector.
Using a 12-volt test light connected to 12-volts, probe the ground circuit.
Is the test light illuminated?

All

Yes

→ Go To 3

→ Repair the Ground circuit for an open.

Perform SKIS VERIFICATION.

Turn the ignition off.
Disconnect the SKIM harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Fused Ignition Switch
Output circuit.
Is the test light illuminated?

All

Yes

→ Go To 4

→ Repair the Fused Ignition Switch Output circuit for an open.

Refer to the wiring diagrams in the service information.
Perform SKIS VERIFICATION.

COMMUNICATION

TEST

ACTION

APPLICABILITY

Turn the ignition off.
Disconnect the SKIM harness connector.
Using a 12-volt test light connected to ground, probe the Fused B(+) circuit.
Is the test light illuminated?

All

Yes

→ Go To 5

→ Repair the Fused B+ circuit for an open. Refer to the wiring

diagrams in the service information.
Perform SKIS VERIFICATION.

Note: Ensure there is PCI Bus communication with other modules on the
vehicle before proceeding. If not, refer to the symptom list from the menu
and repair as necessary.
Disconnect the SKIM harness connector.
Use Scope input cable CH7058, Cable to Probe adapter CH7062, and the red and
black test probes.
Connect the scope input cable to the channel one connector on the DRB. Attach the
red and black leads and the cable to probe adapter to the scope input cable.
With the DRBIII

t, select Pep Module Tools.

Select lab scope.
Select Live Data.
Select 12 volt square wave.
Press F2 for Scope.
Press F2 and use the down arrow to set voltage range to 20 volts. Press F2 again
when complete.
Connect the Black lead to the chassis ground. Connect the Red lead to the PCI Bus
circuit in the SKIM connector.
Turn the ignition on.
Observe the voltage display on the DRB Lab Scope.
Does the voltage pulse from 0 to approximately 7.5 volts?

All

Yes

→ Replace the Sentry Key Immobilizer Module (SKIM) in accor-

dance with the service information.
Perform SKIS VERIFICATION.

→ Go To 6

Turn the ignition off.
Disconnect the SKIM harness connector.
Disconnect the BCM C2 harness connector.
Measure the resistance of the PCI bus circuit between the SKIM connector and the
BCM C2 connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Replace the Body Control Module in accordance with the service

information.
Perform SKIS VERIFICATION.

→ Repair the PCI Bus circuit for an open.

Perform SKIS VERIFICATION.

COMMUNICATION

*NO RESPONSE FROM SENTRY KEY IMMOBILIZER MODULE —

Continued

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