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Chrysler Sebring, Stratus sedan, Sebring Convertible. Manual - part 162

Symptom:

*NO RESPONSE FROM TRANSMISSION CONTROL MODULE

POSSIBLE CAUSES

NO RESPONSE FROM TRANSMISSION CONTROL MODULE

FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN

FUSED B(+) CIRCUIT OPEN

GROUND CIRCUIT(S) OPEN

POWERTRAIN CONTROL MODULE

PCI BUS CIRCUIT OPEN

BODY CONTROL MODULE

TEST

ACTION

APPLICABILITY

Turn the ignition on.
Note: As soon as one or more module communicates with the DRB, answer
the question.
With the DRB, attempt to communicate with the Instrument Cluster.
With the DRB, attempt to communicate with the Body Control Module (BCM).
Was the DRB able to I/D or establish communications with both of the modules?

All

Yes

→ Go To 2

→ Refer to the Communications category and perform the appropri-

ate symptom.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.

Turn the ignition off.
Disconnect the PCM harness connectors.
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.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the Fused Ignition Switch
Output circuits (cavs 11 and 12) in the appropriate terminal of special tool #8815.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Is the test light illuminated for both circuits?

All

Yes

→ Go To 3

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

Refer to the wiring diagrams located in the Service Information.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.

COMMUNICATION

TEST

ACTION

APPLICABILITY

Turn the ignition off.
Disconnect the PCM harness connectors.
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.
Using a 12-volt test light connected to ground, probe the Fused B(+) circuit in the
appropriate terminal of special tool #8815.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Is the test light illuminated?

All

Yes

→ Go To 4

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

diagrams located in the Service Information.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.

Turn the ignition off.
Disconnect the PCM harness connectors.
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.
Using a 12-volt test light connected to 12-volts, probe each ground circuit in the
appropriate terminal of special tool #8815.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Is the light illuminated at all ground circuits?

All

Yes

→ Go To 5

→ Repair the Ground circuit(s) for an open. Check the main ground

connection to engine block and/or chassis. Refer to the wiring
diagrams located in the Service Information.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.

COMMUNICATION

*NO RESPONSE FROM TRANSMISSION CONTROL MODULE —

Continued

TEST

ACTION

APPLICABILITY

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 PCM harness connectors.
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.
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 appropriate terminal of special tool #8815.
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 and program the Powertrain Control Module in accor-

dance with the service information. WITH THE DRBIII

t PER-

FORM QUICK LEARN AND REPROGRAM PINION FACTOR.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.

→ Go To 6

Turn the ignition off.
Disconnect the PCM harness connectors.
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.
Disconnect the BCM C3 harness connector.
Measure the resistance of the PCI Bus circuit from the BCM C3 harness connector to
the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?

All

Yes

→ Replace the Body Control Module in accordance with the service

information.
Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.

→ Repair the PCI Bus circuit for an open.

Perform 40/41TE (NGC) TRANSMISSION VERIFICATION
TEST - VER 1.

COMMUNICATION

*NO RESPONSE FROM TRANSMISSION CONTROL MODULE —

Continued

Symptom:

*PCI BUS COMMUNICATION FAILURE

POSSIBLE CAUSES

WIRING HARNESS INTERMITTENT

OPEN PCI BUS CIRCUIT AT THE DATA LINK CONNECTOR (DLC)

HIGH VOLTAGE ON THE PCI BUS CIRCUITS AT THE BCM CONNECTORS

MODULE (PCI BUS SHORT TO VOLTAGE)

PCI BUS CIRCUIT SHORTED TO VOLTAGE

LOW RESISTANCE TO GROUND ON THE PCI BUS CIRCUITS AT THE BCM CONNECTORS

MODULE (PCI BUS SHORT TO GROUND)

PCI BUS CIRCUIT SHORTED TO GROUND

TEST

ACTION

APPLICABILITY

Note: Determine which modules this vehicle is equipped with before begin-
ning.
Note: When attempting to communicate with any of the modules on this
vehicle, the DRB will display 1 of 2 different communication errors: a NO
RESPONSE message or a BUS +/- SIGNALS OPEN message.
Turn the ignition on.
Using the DRB, attempt to communicate with the following control modules:
Body Control Module (BCM)
Instrument Cluster (MIC)
Airbag Control Module
Controller Antilock Brake (CAB)
Was the DRB able to communicate with one or more Module(s)?

All

Yes

→ Go To 2

→ Go To 3

Turn the ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Note: If the DRB can not communicate with a single module, refer to the
category list for the related symptom.
Were any problems found?

All

Yes

→ Repair wiring harness/connectors as necessary.

Perform BODY VERIFICATION TEST - VER 1.

→ Test Complete.

COMMUNICATION

Content .. 160 161 162 163 ..