Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1397

P0748–MODULATOR PRESSURE SOLENOID CIRCUIT

For a complete wiring diagram Refer to Section 8W

•

When Monitored:
With the ignition on.

•

Set Condition:
The ECM receives a CAN Bus message indicating the presence of a DTC in the TCM.

Possible Causes

VERIFY CURRENT DTC

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)

Diagnostic Test

1.

VERIFY CURRENT DTC

NOTE: Diagnose and repair all ECM DTCs prior to diagnosing any DTCs set in the TCM.

NOTE: This code was set in the ECM by the Transmission Control Module to indicate a transmission fault.
Diagnosis of transmission faults should be done using the Transmission Diagnostic Information.

NOTE: When repairs have been completed, DTCs in the ECM and TCM must be cleared.
Turn the ignition on.

With the scan tool, erase ECM DTCs only.

With the scan tool, read ECM DTCs.

Does this DTC reset?

Yes

>> Refer to Transmission Diagnostic Information for the related symptom(s).

No

>> Test Complete.

9 - 1612

ENGINE ELECTRICAL DIAGNOSTICS - DIESEL

LX

P0753 1–2 / 4–5 SOLENOID CIRCUIT

For a complete wiring diagram Refer to Section 8W

•

When Monitored:
With the ignition on.

•

Set Condition:
The ECM receives a CAN Bus message indicating the presence of a DTC in the TCM.

Possible Causes

VERIFY CURRENT DTC

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)

Diagnostic Test

1.

VERIFY CURRENT DTC

NOTE: Diagnose and repair all ECM DTCs prior to diagnosing any DTCs set in the TCM.

NOTE: This code was set in the ECM by the Transmission Control Module to indicate a transmission fault.
Diagnosis of transmission faults should be done using the Transmission Diagnostic Information.

NOTE: When repairs have been completed, DTCs in the ECM and TCM must be cleared.
Turn the ignition on.

With the scan tool, erase ECM DTCs only.

With the scan tool, read ECM DTCs.

Does this DTC reset?

Yes

>> Refer to Transmission Diagnostic Information for the related symptom(s).

No

>> Test Complete.

LX

ENGINE ELECTRICAL DIAGNOSTICS - DIESEL

9 - 1613

P0758 2–3 SOLENOID CIRCUIT

For a complete wiring diagram Refer to Section 8W

•

When Monitored:
With the ignition on.

•

Set Condition:
The ECM receives a CAN Bus message indicating the presence of a DTC in the TCM.

Possible Causes

VERIFY CURRENT DTC

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)

Diagnostic Test

1.

VERIFY CURRENT DTC

NOTE: Diagnose and repair all ECM DTCs prior to diagnosing any DTCs set in the TCM.

NOTE: This code was set in the ECM by the Transmission Control Module to indicate a transmission fault.
Diagnosis of transmission faults should be done using the Transmission Diagnostic Information.

NOTE: When repairs have been completed, DTCs in the ECM and TCM must be cleared.
Turn the ignition on.

With the scan tool, erase ECM DTCs only.

With the scan tool, read ECM DTCs.

Does this DTC reset?

Yes

>> Refer to Transmission Diagnostic Information for the related symptom(s).

No

>> Test Complete.

9 - 1614

ENGINE ELECTRICAL DIAGNOSTICS - DIESEL

LX

P0763 3–4 SOLENOID CIRCUIT

For a complete wiring diagram Refer to Section 8W

•

When Monitored:
With the ignition on.

•

Set Condition:
The ECM receives a CAN Bus message indicating the presence of a DTC in the TCM.

Possible Causes

VERIFY CURRENT DTC

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)

Diagnostic Test

1.

VERIFY CURRENT DTC

NOTE: Diagnose and repair all ECM DTCs prior to diagnosing any DTCs set in the TCM.

NOTE: This code was set in the ECM by the Transmission Control Module to indicate a transmission fault.
Diagnosis of transmission faults should be done using the Transmission Diagnostic Information.

NOTE: When repairs have been completed, DTCs in the ECM and TCM must be cleared.
Turn the ignition on.

With the scan tool, erase ECM DTCs only.

With the scan tool, read ECM DTCs.

Does this DTC reset?

Yes

>> Refer to Transmission Diagnostic Information for the related symptom(s).

No

>> Test Complete.

LX

ENGINE ELECTRICAL DIAGNOSTICS - DIESEL

9 - 1615