Diagnostic Test

WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

1) DETERMINE IF RELATED TCM POWER INPUT DTCS ARE PRESENT
With the scan tool, read Transmission DTCs.

Are there any TCM Power Input DTCs present also?

Yes
1. Perform appropriate DTC test(s) in this article.
No
1. Go To step 2).
2) CHECK TO SEE IF P0765 IS CURRENT
With the scan tool, Check the STARTS SINCE SET counter.

NOTE: This counter only applies to the last DTC set.

Is the STARTS SINCE SET counter for P0765 set at 0?

Yes
1. Go To step 3).
No
1. Go To step 8).
3) PCM AND WIRING
Turn the ignition off to the lock position.

Remove the Starter Relay.

CAUTION: Removal of the Starter Relay is to prevent a Transmission, NO RESPONSE, condition and disable the starter.

Install the Transmission Simulator, Miller tool #8333 and the Electronic Transmission Adapter kit 8333-1A.

Ignition on, engine not running.

With the scan tool, actuate the UD Solenoid.

Monitor the UD Solenoid LED on the Transmission Simulator.

Did the UD Solenoid LED on the Transmission Simulator blink on and off during actuation?

Yes
1. Go To step 7).
No
1. Go To step 4).
4) (T59) UD SOLENOID CONTROL CIRCUIT OPEN

Fig 1: Checking UD Solenoid Control Circuit For Open
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off to the lock position.

Disconnect the PCM C4 harness connector.

Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.

CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special Tool #8815 to perform diagnosis.

Measure the resistance of the (T59) UD Solenoid Control circuit from the appropriate terminal of special tool #8815 to the Solenoid/Pressure Switch Assembly harness connector.

Is the resistance above 5.0 ohms?

Yes
1. Repair the (T59) UD Solenoid Control circuit for an open.
2. Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1
No
1. Go To step 5).
5) (T59) UD SOLENOID CONTROL CIRCUIT SHORT TO GROUND

Fig 2: Checking UD Solenoid Control Circuit For Short To Ground
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off to the lock position.

Disconnect the PCM C4 harness connector.

Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.

Measure the resistance between ground and the (T59) UD Solenoid Control circuit.

Is the resistance below 5.0 ohms?

Yes
1. Repair the (T59) UD Solenoid Control circuit for a short to ground.
2. Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1
No
1. Go To step 6).
6) (T59) UD SOLENOID CONTROL CIRCUIT SHORT TO VOLTAGE

Fig 3: Checking UD Solenoid Control Circuit For Short To Voltage
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off to the lock position.

Disconnect the PCM C4 harness connector.

Disconnect the Transmission Solenoid/Pressure Switch Assembly harness connector.

Remove the Transmission Control Relay.

NOTE: Check connectors - Clean/repair as necessary.

Connect a jumper wire between the (Internal) Fused B+ circuit and the (T16) Transmission Control Relay Output circuit in the Transmission Control Relay connector.

Ignition on, engine not running.

Measure the voltage of the (T59) UD Solenoid Control circuit.

Is the voltage above 0.5 volts?

Yes
1. Repair the (T59) UD Solenoid Control circuit for a short to voltage.
2. Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1 .
No
1. 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, then program Pinion Factor in the Front Control Module. (Refer to ELECTRICAL/ELECTRONIC CONTROL MODULES/POWERTRAIN CONTROL MODULE - REMOVAL)
2. Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1
7) UD SOLENOID/PRESSURE SWITCH ASSEMBLY
View repair.

Repair
1. Replace the Transmission Solenoid/Pressure Switch Assembly per the Service Information.
2. Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1
8) 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 wires 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
1. Repair as necessary.
2. Perform 42RLE TRANSMISSION VERIFICATION TEST - VER 1
No
1. Test Complete.