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Home >> Dodge or Ram Truck >> 2003 >> Durango 2WD V8-4.7L VIN N >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Relays and Modules - A/T >> Control Module >> Testing and Inspection >> Quick Learn Procedure >> Quick Learn Function

Quick Learn Function

QUICK LEARN
The Quick Learn function customizes adaptive parameters of the PCM to the transmission Characteristics of a vehicle. This gives the customer improved "as received" shift quality compared to the initial parameters stored in the PCM.

Notes about Quick Learn Features
The nature of the Quick Learn function requires that certain features must be taken into consideration.
- Quick Learn should generally not be used as a repair procedure unless directed by a repair or diagnostic procedure. If the transmission system is exhibiting a problem that you think is caused by an invalid CVI, you should try to relearn the value by performing the appropriate driving maneuver. In most cases, if a Quick Learn makes a vehicle shift better, the vehicle will return with the same problem.
- Before performing Quick Learn, it is imperative that the vehicle be shifted into OD with the engine running and the oil level set to the correct level. This step will purge air from the clutch circuits to prevent erroneous clutch volume values which could cause poor initial shift quality. Cycle the transmission through all gears 2-3 times immediately before performing Quick Learn. For best results, Quick Learn should be run with the transmission sump temperature > 90 °F.
- If an unused PCM is installed on a vehicle with a HOT engine, Quick Learn will cause the PCM to report a cold calculated oil temperature. This requires monitoring the calculated oil temperature using the DRBIII(R). If the temperature is below 16 °C (60 °F), the transmission must be run at idle or driven in gear until it goes above 16°C (60 °F ). If the temperature is above 93 °C (200 °F), the transmission must cool to below 93 °C (200 °F).
- First gear is engaged in overdrive after Quick Learn is completed. Place the vehicle in park after performing Quick Learn.

The Quick Learn function should be performed:
- Upon installation of a new service PCM
- After replacement or rebuild of internal transmission components or the torque converter
- If one or more of the clutch volumes indexes (CVI's) contain skewed readings because of abnormal conditions.

The Quick Learn procedure is performed with the DRBIII(R) by selecting "Transmission" system then "Miscellaneous" functions, then "Quick Learn". Follow the procedure instructions displayed on the DRBIII(R). To perform the Quick Learn procedure, the following conditions must be met.


NOTE: The oil temperature must be between 16 °C (60 °F) and 93°C (200 °F). Above 32°C (90°F) for best results. Cycle the transmission through all gears 2-3 times immediately before performing Quick Learn.


- It is imperative that the vehicle oil level set to the correct level. Shift the transmission into OD with the engine running, this step will purge the air in the clutch circuits to prevent erroneous clutch volume values, which could cause poor initial shift quality.
- Shift the transmission to neutral.
- The brakes must be applied.
- The engine must be idling.
- The throttle angle (TP sensor) must be less than 3 degrees.
- The shift lever position must stay in neutral, after shifting to neutral the engine idle speed will ramp up to 1600 rpm and the DRBIII(R) will prompt the operator to shift to OD. Do not shift to OD until the engine idle speed stabilizes at 1600 rpm.
- The shift lever must stay in OD after the "Shift to Overdrive" prompt until the DRBIII(R) indicates the procedure is complete.

NOTE:
- The above conditions must be maintained during the procedure to keep the procedure from being aborted.
- After the quick Learn Procedure is complete, the vehicle should be drive learned per the Drive Learn Procedure.

CLUTCH VOLUMES
The LR clutch volume is updated when doing a manual downshift into 1st gear with vehicle speed above 40 km/h (25 MPH) and throttle angle below 5 °. The transmission temperature must be above 43 °C (110 °F). The clutch volume should be between 45 and 134.


NOTE: You must manually move the shift lever into the low position.

The 2C clutch volume is updated when doing a 3-2 shift with throttle angle between 10 ° and 54 °. The transmission temperature must be above 43 °C (110 °F). The clutch volume should be between 25 and 85.

The 2CA clutch volume is updated when doing a 4th-4 prime shift with throttle angle between 10 ° and 54 ° The transmission temperature must be above 43 °C (110 °F). The clutch volume should be between 25 and 85.

The OD clutch volume is updated when doing a 2-3 shift with throttle angle between 10 ° and 54 °. The transmission temperature must be above 43 °C (110 °F). The clutch volume should be between 30 and 100.

The 4C clutch volume is updated when doing a 3-4 shift with throttle angle between 10 ° and 54 °. The transmission temperature must be above 43 °C (110 °F). The clutch volume should be between 30 and 85.

The UD clutch volume is updated when doing a 4-3 shift with throttle angle between 10 ° and 54 °. The transmission temperature must be above 43 °C (110 °F). The clutch volume should be between 30 and 100.

NO START INFORMATION (POWERTRAIN)

IMPORTANT NOTE:
If the Powertrain Control Module has been programmed, DTC will set in the ABS and Air bag modules. In addition, if the vehicle is equipped with a Sentry Key Immobilizer Module (SKIM), Secret Key data must be updated to enable starting.

FOR ABS AND AIR BAG SYSTEMS:
1. Enter correct VIN and Mileage in PCM.
2. Erase codes in ABS and Air Bag modules.

FOR SKIM THEFT ALARM:
1. Connect the DRBIII(R) to the data link connector.
2. Go to Theft Alarm, SKIM, Misc. and place the SKIM in secured access mode, by using the appropriate PIN code for this vehicle.
3. Select Update the Secret Key data, data will be transferred from the SKIM to the PCM (This is required to allow the vehicle to start with the new PCM).
4. If three attempts are made to enter secured access mode using the incorrect PIN, secured access mode will be locked out for one hour. To exit this lock out mode, leave the ignition key in the Run/Start position for one hour. Ensure all accessories are turned off. Also monitor the battery state and connect a battery charger if necessary.

After reading System Description and Functional Operation, you should have a better understanding of the theory and operation of the on-board diagnostics, and how this relates to the diagnosis of a vehicle that may have a driveability related symptom or complaint.
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