Dodge Durango (HB). Manual - part 1236

45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1

For the Transmission circuit diagram (Refer to )(Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - 45RFE/
545RFE - SCHEMATICS AND DIAGRAMS).

For a complete wiring diagram Refer to Section 8W.

45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1

1. After completion of the Transmission Verification Test, the Powertrain Verification Test must be per-
formed.

2. Connect the scan tool to the Data Link Connector (DLC).

3. Reconnect any disconnected components.

4. If the PCM has been replaced or reflashed, or the transmission has been repaired or replaced, it is nec-
essary to perform the scan tool Quick Learn Procedure.

5. With the scan tool, erase all Transmission and Engine DTC’s.

6. With the scan tool, display Transmission Temperature. Start and run the engine until the Transmission Temper-
ature is HOT.

7. Check the Transmission fluid level and adjust if necessary. Refer to the Service Information for the Fluid Fill
procedure. (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE/FLUID - STANDARD PRO-
CEDURE)

8. Road test the vehicle.

9. Perform the following shifts from a standing start with a constant throttle opening of 20 to 25 degrees to the
speeds of 97 Km/h or 60 MPH; make fifteen to twenty 1 to 2, 2 to 3, 3 to 4 upshifts and for 545RFE, 4 to 5.

10. Perform the following shifts with speeds below 40 Km/h or 25 MPH; make five to eight wide open throttle kick-
downs to 1st gear. Allow at least 5 seconds each in 2nd and 3rd gear between each kickdown.

11. Check for DTC’s during the road test.

12. Use the EATX OBDII task manager to run Good Trip time in each gear, this will confirm the repair and to
ensure that the DTC has not re-matured.

13. With the scan tool, perform a BATTERY DISCONNECT, this will clear the EATX DTC EVENT DATA

Were there any Diagnostic Trouble Codes (DTCs) set during the road test?

Yes

>> Refer to the Symptom List for the appropriate diagnostic tests.

>> Repair is complete.

AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS

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PRE-DIAGNOSTIC CHECK OUT

For a complete wiring diagram Refer to Section 8W.

Diagnostic Test

PRE-DIAGNOSTIC CHECK OUT

Check the transmission fluid level. If the fluid level is low, locate and repair any leaks and fill the transmission to the
proper level. Refer to the appropriate Service Information for procedures. Many transmission symptoms can be
caused by a low fluid level.

Check the battery. To avoid false diagnosis, testing should only be performed with the battery fully charged.

With the scan tool, read Engine (PCM) DTCs. If DTCs are present, refer to the Driveability Category and perform to
the appropriate diagnostic procedure(s) before proceeding.

With the scan tool, read Transmission (TCM) DTCs. Record all Stored, Active, and Pending DTC information. Diag-
nose any Pending DTC as a matured DTC.

With the scan tool, read EATX DTC EVENT DATA. Use this data to identify the conditions in which the DTC was
set.

Performing a Battery Disconnect will clear all EATX DTC EVENT DATA and reset all learned Transmission values to
the default values, which may temporarily result in erratic shift schedules.

With the scan tool, perform the Shift Lever Position Test. If the test does not pass, refer to the diagnostic procedure
for P0706 Check Shifter Signal.

For Gear Ratio Error DTCs, use the scan tool to view CVI Monitor data. Read and record the Clutch Volume Index
information.

Use the wiring diagram as a guide. Inspect the wiring and connectors related to this circuit. Repair as necessary.

Refer to the When Monitored and Set Conditions for this DTC. DTCs can set at ignition on, at start up, after driving
under specific conditions and after diagnostic monitors have been run.

Refer to applicable Technical Service Bulletins (TSBs) for controller software update information. Some conditions
can be corrected by upgrading the Engine (PCM) or Transmission (TCM) controller software.

Refer to any Service Information Tune Ups or Technical Service Bulletins that apply to this symptom.

Were there any repairs made that fixed the vehicle?

Yes

>> Testing complete.

>> Refer to the Transmission category and perform the appropriate diagnostic procedure(s).

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AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS

P0122-TPS/APP CIRCUITLOW

For the Transmission circuit diagram (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - DIAGNOSIS AND
TESTING).

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
Continuously with the ignition on and engine running.

•

Set Condition:
This DTC will set if the monitored TPS voltage drops below .078 volts for the period of 0.48 seconds.

Possible Causes

RELATED ENGINE TPS/APPS DTC’S PRESENT

POWERTRAIN CONTROL MODULE

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - DIAGNOSIS AND TESTING).

Theory of Operation

Due to the integration of the Powertrain and Transmission Control Modules the New Generation Control Module III
will be referred to as the Powertrain Control Module (PCM). The 3–wire TPS (4.7L V-8 Engine) provides the PCM
with an input signal voltage that represents the throttle blade position of the throttle body. The Throttle Position
Sensor (TPS) is connected to the throttle blade shaft. As the position of the throttle blade changes, the output volt-
age of the TPS changes.

The PCM supplies approximately 5.0 volts to the TPS. The TPS output voltage (input signal to the PCM) represents
the throttle blade position. The PCM receives an input signal voltage from the TPS. This will vary in an approximate
range from 0.26 volts at minimum throttle opening (idle), to 4.49 volts at maximum opening (wide open throttle).

The Accelerator Pedal Position Sensor (APPS) is currently used only with the 5.7L V-8 engine. The APPS is a linear
potentiometer. It provides the PCM with a voltage signal proportional to the angle, or position of the accelerator
pedal. The APPS signal along with inputs from other sensors is used by the PCM to calculate the throttle plate
position.

A mechanical cable is used between the accelerator pedal and the APPS assembly. Although a cable is used
between the accelerator pedal and the APPS assembly, a mechanical cable is not used between the accelerator
pedal and the throttle body. The throttle plate position is electronically controlled by the PCM.

Diagnostic Test

DETERMINING IF RELATED ENGINE TPS/APPS DTC’S ARE PRESENT

With the scan tool, check Engine DTC’s.

Are there any Engine TPS/APPS DTCs present?

Yes

>> Refer to the Drivability Category and perform the appropriate Symptom.

>> Go To 2

AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS

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P0122-TPS/APP CIRCUITLOW (CONTINUED)

CHECK TO SEE IF DTC IS CURRENT

With the scan tool, record the EATX DTC EVENT DATA to help identify the conditions in which the DTC was set.

With the scan tool, erase Transmission DTCs.

NOTE: To erase EATX DTC DTC EVENT DATA information, a BATTERY DISCONNECT must be performed.
Performing a BATTERY DISCONNECT may reset learned Transmission values to controller defaults which
may lead to erratic shift schedules.
Drive the vehicle and try to duplicate the conditions in which the DTC was reported by the EATX DTC EVENT
DATA.

With the scan tool, read Transmission DTCs.

Did the DTC P0122 TPS/APPS LOW, reset?

Yes

>> Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion,

damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems
are found, replace the PCM per the Service Information. With the scan tool, perform QUICK LEARN.

Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1.

>> Go To 3

INTERMITTENT WIRING AND CONNECTORS

The conditions necessary to set the DTC are not present at this time.

Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.

Wiggle the wiring and connectors while checking for shorted and open circuits.

With the scan tool, check the EATX DTC EVENT DATA to help identify the conditions in which the DTC was set.

Were there any problems found?

Yes

>> Repair as necessary.

Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1.

>> Test Complete.

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AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS

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