Contents Wiring diagrams Section: Computer Relearn All sections

Computer Relearn Procedures: Other Dodge Pickup R1500

Computer Relearn ~5376 words

BODY CONTROLS

Vehicles equipped with body, air conditioning, anti-lock brake or memory computers may require a computer relearn procedure after components are replaced or the vehicle battery is disconnected. Vehicle computers memorize and store vehicle information and operation selections. When the vehicle battery is disconnected, vehicle computer memory may be lost, requiring relearning or resetting. Depending on the vehicle and how it is equipped, the following secondary memories may exist

  1. Air conditioning. See appropriate AUTOMATIC A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.
  2. Clock operation.
  3. Power window operation. See appropriate POWER WINDOWS article in ACCESSORIES & EQUIPMENT.
  4. Power sliding door operation. See appropriate POWER SLIDING DOORS article in ACCESSORIES & EQUIPMENT.
  5. Radio presets.
  6. Remote keyless entry and/or keyless entry keypad custom features. See appropriate REMOTE KEYLESS ENTRY SYSTEMS article in ACCESSORIES & EQUIPMENT.
  7. Sun roof operation. See appropriate POWER SUN ROOF article in ACCESSORIES & EQUIPMENT.

These do not affect primary vehicle systems. For secondary vehicle systems, see appropriate article for relearn procedures. Other computer relearn procedures are required for primary vehicle system operation. These may include

  1. Initial control unit programming.
  2. Traction control yaw sensor initializing.
  3. Multiplex communication.
  4. Anti-theft system or engine immobilizer system passwords.

ENGINE CONTROLS

Vehicles equipped with an engine control module, may require a computer relearn procedure after vehicle battery is disconnected. Vehicle computers memorize and store vehicle operation patterns for optimum driveability and performance. When the vehicle battery is disconnected, this memory is lost, which may result in a driveability problem. Depending on the vehicle and how it is equipped, the following driveability problems may exist

  1. Rough or unstable idle.
  2. Hesitation or stumble.
  3. Rich or lean running.
  4. Poor fuel mileage.
  5. Harsh or poor transmission/transaxle shift quality.

Default data is used until NEW data from each key start is stored. As the computer restores its memory from each new key start, driveability is restored.

Driveability problems may occur during the computer relearn stage. To accelerate computer relearn process after battery removal and installation, a period of driving may be necessary to relearn computer. No specific procedure is supplied by manufacturer, except for shift quality.

BODY CONTROL MODULE (CONCORDE, INTREPID, SEBRING CONVERTIBLE, SEBRING SEDAN, STRATUS SEDAN & 300M)

Turn ignition switch to ON position for at least 15 seconds (to learn VIN). On vehicles equipped with Vehicle Theft Security System (VTSS), use scan tool to enable VTSS. Using scan tool, program all other options as necessary.

DRIVE LEARN PROCEDURE (DAKOTA - 4.7L, DURANGO - 4.7L & RAM PICKUP 1500 - 4.7L)

Note. Using DRBIII®, perform the following transmission drive learn procedures based on customer complaint or if symptom exists.

Procedure To Learn A Smooth 1st Neutral To Drive Shift

Note. Transmission fluid temperature must be between 80-110°F (27-43°C).

Perform this procedure only if the complaint is for a delayed or harsh shift the first time the transmission is put into gear after the vehicle is allowed to set with the engine not running for at least 10 minutes. Use the following steps to have the TCM learn the 1st N-1 UD Clutch Volume Index (CVI).

  1. Start vehicle only when the engine and ignition have been off for at least 10 minutes.
  2. With the vehicle at a stop and the service brake applied, record the UD CVI while performing a Neutral to Drive shift. During the shift, the UD CVI will temporarily show a different value which is the 1st N-1 UD CVI. The 1st N-1 UD CVI account for air entrapment in the UD clutch that may occur after the engine has been off for a period of time.
  3. Repeat steps 1 and 2 until the recorded 1st N-1 UD CVI value stabilizes.

Procedure To Learn A Smooth Neutral To Drive Garage Shift

Note. It is important that this procedure be performed when the transmission fluid temperature is between 80-110°F (27-43°C). If this procedure takes too long to complete fully for the allowed transmission fluid temperature, the vehicle may be returned to the customer with an explanation that the shift will improve daily during normal vehicle usage. TCM also learns at higher fluid temperatures, but these values (line pressure correction values) are not available for viewing on the DRBIII®.

Note. The transmission fluid temperature must be between 80-110°F (27-43°C) to learn the UD CVI. Additional learning occurs at temperatures as low as 0°F (-17°C) and as high as 200°F (94°C). This procedure may be performed at any temperature that experiences poor shift quality. Although the UD CVI may not change, shift quality should improve.

Perform this procedure if the complaint is for a delayed or harsh shift when the transmission is put into gear after the vehicle has had its first shift. Use the following steps to have the TCM learn the N-1 UD Clutch Volume Index (CVI).

  1. Start the engine and shift to Drive.
  2. Move the vehicle forward to a speed of at least 10 MPH and come to a stop. This ensures no air is present in the UD hydraulic circuit.
  3. Perform repeated N-1 shifts at a stop while pausing in Neutral for at least 2-3 seconds and monitor UD CVI volume until the value stabilizes. The value will change during the N-D shift. This is normal since the UD value is different for the N-1 shift than the normal value shown, which is used for 4-3 coastdown and kickdowns. Perform repeated shifts in this temperature range until the UD CVI value stabilizes and the N-1 shifts become smooth.
  4. This procedure may be performed at any temperature that experiences poor N-1 shift quality. Although the UD CVI may not change, shift quality should improve.

Procedure To Learn The 1st 2-3 Shift After A Restart Or Shift To Reverse

Note. The transmission fluid temperature must be above 80°F (27°C).

Use the following steps to have the TCM learn the 1st 2-3 shift OD Clutch Volume Index (CVI).

  1. With the engine running, select Reverse gear for over 2 seconds.
  2. Shift the transmission to Drive and accelerate the vehicle from a stop at a steady 15 degree throttle opening and perform a 2-3 shift while noting the OD CVI. During the shift, a different value may appear on the DRBIII® screen, which is the 1st 2-3 OD CVI.
  3. Repeat steps 1 and 2 until the 1st 2-3 upshift becomes smooth and the 1st 2-3 OD CVI stabilizes.

Procedure To Learn A Smooth 2-3 & 3-4 Upshift

Note. Transmission fluid temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the OD and 4C Clutch Volume Index (CVIs).

  1. Accelerate the vehicle from a stop at a steady 15 degree throttle opening and perform multiple 1-2, 2-3 and 3-4 upshifts. The 2nd 2-3 shift following a restart or shift to Reverse will be shown during the shift as a value between the 1st 2-3 OD CVI and the normal OD CVI. Updates to the normal OD CVI will occur after the 2nd shift into 3rd gear, following a restart or shift to Reverse.
  2. Repeat step 1 until the 2-3 and 3-4 shifts become smooth and the OD and 4C CVI become stable.

Procedure To Learn A Smooth 4-3 Coastdown & Part Throttle 4-3 Kickdown

Note. Transmission fluid temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the UD shift volume.

  1. At a vehicle speed between 40-60 MPH, perform repeated 4-3 kickdown shifts.
  2. Repeat step 1 until the UD volume becomes somewhat stable and the shift becomes smooth.

Procedure To Learn A Smooth 1-2 Upshift & 3-2 Kickdown

Note. Transmission fluid temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the 2C shift volume.

  1. With a vehicle speed below 30 MPH and the transmission in 3rd gear, perform multiple 3-2 kickdowns.
  2. Repeat step 1 until the 3-2 kickdowns become smooth and the 2C CVI becomes stable.

Procedure To Learn A Smooth Manual 2-1 Pulldown Shift As Well As A Neutral To Reverse Shift

Note. Transmission fluid temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the LR volume.

  1. With the vehicle speed around 25-30 MPH in manual 2nd, perform manual pulldowns to Low or 1st gear at closed throttle.
  2. Repeat step 1 until the LR CVI become stable and the manual 2-1 becomes smooth.

Procedure To Learn A Smooth Neutral To Reverse Shift

Note. Transmission fluid temperature must be above 110°F (43°C).

Perform the following shifts. With the vehicle at a stop, perform Neutral to Reverse shifts until the shift is smooth. An unlearned Neutral to Reverse shift may be harsh or exhibit a double bump. If any of the shifts are still not smooth after the clutch volume stabilizes, an internal transmission problem may be present.

Procedure To Learn A Smooth 4-5 Upshift for 545RFE

Note. Transmission fluid temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the 2CA CVI.

  1. Accelerate the vehicle through 55 MPH at a steady 10-15 degree throttle opening and perform multiple 4-5 upshifts.
  2. Repeat step 1 until the 4-5 shift becomes smooth and the 2C(A) CVI becomes stable. There is a separate 2C volume used and learned for 4-5 shifts, 2C(A). It is independent of the 2C CVI learned on 3-2 kickdowns

ENGINE CONTROL MODULE PROGRAMMING (DIESEL)

Note. If battery is disconnected, Engine Control Module (ECM) is disconnected or replaced, or Accelerator Pedal Position Sensor (APPS) has been disconnected or replaced, ECM must be programmed to match the APPS.

Ensure all components are connected. Turn ignition switch to ON position, engine off. Slowly depress accelerator pedal to the floor and release accelerator pedal to idle position one time. This ensures that APPS calibration has been programmed into the ECM. Turn ignition switch to OFF position.

IMMOBILIZER SYSTEM (SEBRING COUPE & STRATUS COUPE)

If immobilizer ECU, PCM (2.4L A/T and 3.0L) or ECM (2.4L M/T) is replaced, all keys will have to be reprogrammed. If immobilizer ECU is replaced, vehicle secret code and password will need to be registered into new immobilizer ECU.

Encrypted Code Registration

  1. Obtain vehicle secret code from customer or manufacturer. Connect scan tool to Data Link Connector (DLC) located under left side of instrument panel. Insert valid ignition key and turn the ignition switch to ON position. Under MAIN MENU select SYSTEM SELECT and press YES. Select IMMOBILIZER and press YES.
  2. Select SPECIAL FUNC and press YES. Select PASSWORD SET and press YES. Enter vehicle secret code and 4-digit password into new immobilizer ECU. If an incorrect code is entered 5 times in a row, immobilizer ECU will detect tampering and enter start-prevention mode. Engine operation and special functions will be disabled.
  3. To clear start-prevention mode, turn the ignition switch to ON position and leave in ON position for 20 minutes. Connect a battery charger if necessary. Start-prevention mode will cancel after 20 minutes. After completing encrypted code registration procedure, all ignition keys will need to be input. See «KEY ID REGISTRATION»(ref-158775-S22110039462003102000000) .

Key ID Registration

Ensure all ignition keys (new and existing) for vehicle are available during key ID registration. All ignition keys will need to be input into immobilizer ECU.

  1. Connect scan tool to Data Link Connector (DLC) located under left side of instrument panel. Insert valid ignition key and turn the ignition switch to ON position. Under MAIN MENU select SYSTEM SELECT and press YES.
  2. Select IMMOBILIZER and press YES. Select SPECIAL FUNC and press YES. Select KEY ID REGISTR and press YES. If DTC 11 is set, scan tool will display CAN'T EXECUTE. If CAN'T EXECUTE is not displayed, go to next step. If CAN'T EXECUTE is displayed, go to DTC NO. 11: TRANSPONDER COMMUNICATION SYSTEM OR RADIO INTERFERENCE OF ENCRYPTED CODE under DIAGNOSTIC TESTS in ANTI-THEFT SYSTEMS - SEBRING COUPE & STRATUS COUPE article in ACCESSORIES & EQUIPMENT.
  3. Scan tool will display PLEASE ENTER PASSWORD. Using arrow keys, select password. Press YES when correct 4-digit password is selected. NOTE: If an incorrect code is entered 5 times in a row, immobilizer ECU will detect tampering and enter start-prevention mode. Engine operation and special functions will be disabled. To clear start-prevention mode, turn the ignition switch to ON position and leave in ON position for 20 minutes. Connect a battery charger if necessary. Start-prevention mode will cancel after 20 minutes.
  4. Scan tool will display ARE YOU READY?. Press YES to begin registration. When registration is complete, scan tool will display COMPLETE. If an error occurs during registration, scan tool will display CAN'T EXECUTE. If ignition key is already registered, scan tool will display KEY ID HAS BEEN REGISTERED.
  5. Scan tool will display number of keys registered. To register additional keys (up to 8 different keys), insert next key and turn the ignition switch to ON position within 5 seconds. Then press YES on scan tool. After all ignition keys are registered, press NO on scan tool. This will complete key ID registration. Turn ignition to OFF position and leave off for a minimum of 10 seconds.
  6. Check that vehicle can be started with each key. Check that no MFI or immobilizer ECU DTCs did not set. If DTCs set, repair as necessary. If no DTCs set, turn the ignition switch to LOCK position and disconnect scan tool. Procedure is complete.

INSTRUMENT CLUSTER (RAM VAN)

Cruise, overdrive off and transmission temperature indicators are programmable. New instrument cluster will automatically program itself according to vehicle equipment when ignition is turned on.

PINION FACTOR PROCEDURE

Note. After replacing the PCM, you must reprogram pinion factor.

POWERTRAIN CONTROL MODULE PROGRAMMING

Note. ECM/PCM programming for Sebring Coupe and Stratus Coupe is not available from manufacturer.

Note. On Concorde, Intrepid, 300M and some Durango models, the PCM and the Transmission Control Module (TCM) are incorporated into one control module and may be referred to as the New Generation Controller (NGC). The NGC PCM has 4 harness connectors. After replacing the NGC PCM, reprogram pinion factor and perform shift quality quick learn procedures.

Note. If replacing Powertrain Control Module (PCM), the correct vehicle mileage and Vehicle Identification Number (VIN) must be programmed into the PCM to prevent Diagnostic Trouble Codes (DTC) from being set in the Controller Anti-Lock Brake (CAB) module, Sentry Key Immobilizer Module (SKIM) and Air Bag Control Module (ACM).

Note. If replacing both PCM and SKIM at the same time, first program PCM, then program SKIM. Replace all ignition keys and program them to new SKIM.

  1. Connect scan tool to Data Link Connector (DLC), located under left side of instrument panel. Using scan tool, select THEFT ALARM, SKIM, then MISC. Select PCM REPLACED (GAS ENGINE). Obtain 4-digit Personal Identification Number (PIN) from vehicle owner or manufacturer. NOTE: If 3 attempts are made incorrectly to enter PIN, secured access mode will be locked out for one hour. To exit lock out mode, leave ignition switch in ON position for one hour. Ensure battery voltage is maintained with battery charger, if necessary.
  2. Enter secured access mode by entering PIN code for vehicle. Select ENTER to update PCM VIN. SKIM will now send secret key data to PCM.
  3. Select BACK to go to SELECT SYSTEM menu. Select ENGINE, MISC then SRI MEMORY CHECK. Scan tool will display IS ODOMETER READING BETWEEN XX AND XX?
  4. Select YES or NO. If NO is selected, scan tool will display ENTER ODOMETER READING. Enter odometer reading from instrument panel odometer and press ENTER.

SENTRY KEY IMMOBILIZER MODULE PROGRAMMING

CAUTIONLarge metallic objects, or items such as magnetic pass-keys, may cause vehicle starting problems. These devices do not cause damage to system. Devices may cause intermittent malfunctions if positioned too close to ignition lock cylinder during vehicle start-up. Move objects away from ignition lock cylinder and try to start vehicle.

Note. If the PCM and the SKIM are replaced at the same time, program the VIN into the PCM first. All vehicle keys will then need to be replaced and programmed to the new SKIM.

  1. Connect scan tool to Data Link Connector (DLC), located under left side of instrument panel. Turn the ignition on (transmission in Park/Neutral).
  2. Using scan tool, select THEFT ALARM, SKIM, then MISCELLANEOUS.
  3. Select SKIM MODULE REPLACEMENT (GASOLINE).
  4. Obtain 4-digit Personal Identification Number (PIN) from vehicle owner or manufacturer. Enter secured access mode by entering PIN code for vehicle.
  5. Select COUNTRY CODE. Enter correct country. Select UPDATE VIN. SKIM will learn VIN from Powertrain Control Module (PCM). Press ENTER to transfer secret key data from PCM to SKIM. This will ensure the current vehicle ignition keys will still operate the SKIS system.

Programming Ignition Keys Using Customer Learn Method

To program ignition keys using customer learn method, 2 programmed valid ignition keys must be available. If 2 programmed valid ignition keys are not available, scan tool method must be used.

  1. Insert first valid ignition key into ignition lock cylinder. Turn ignition on for at least 3 seconds, but no more than 15 seconds. Turn ignition off and remove key.
  2. Within 15 seconds, insert second valid ignition key and turn ignition on. After 10 seconds a chime will sound and theft alarm indicator will flash. Turn ignition off and remove key.
  3. Within 60 seconds, insert new ignition key and turn ignition on. After 10 seconds a chime will sound and theft alarm indicator will stop flashing then turn on for 3 seconds and turn off. New key is now programmed to SKIM.
  4. Repeat this procedure for additional new keys. A maximum of 8 keys can be programmed to vehicle. Customer learn method will automatically exit if SKIM senses a non-blank ignition key when a blank ignition key should be sensed, if 8 keys are already programmed or ignition switch is turned off for more than 50 seconds.

TRANSMISSION SHIFT QUALITY QUICK LEARN PROCEDURE (DAKOTA - 4.7L, DURANGO - 4.7L & RAM PICKUP 1500 - 4.7L)

This program allows the electronic transmission system to recalibrate itself. This will provide the best possible transmission operation.

  1. Transmission shift quality quick learn procedure must be performed to provide proper transmission operation if any of the following have been done: Transmission assembly was replaced. Transmission Control Module (TCM) was replaced. Solenoid pack was replaced. Clutch plate and/or seal replaced. Valve body was reconditioned or replaced.
  2. Transmission shift quality quick learn procedure must be performed using Chrysler's Diagnostic Readout Box (DRBIII®) scan tool. Following conditions must be met when performing transmission shift quality quick learn procedure: Brakes must be applied. Engine speed must be greater than 500 RPM. Throttle position sensor angle must be less than 3 degrees. Shift lever must remain in designated position until prompted to shift to overdrive. Shift lever must remain in overdrive after the shift to overdrive until scan tool indicates procedure is complete. Calculated oil temperature must be 60-200°F (16-93°C).
  3. Connect DRBIII® to Data Link Connector (DLC) below driver's side of instrument panel. Go to TRANSMISSION display on scan tool.
  4. Go to MISCELLANEOUS display on scan tool. Select QUICK LEARN PROCEDURE display on scan tool. Follow instructions displayed on scan tool to perform transmission shift quality quick learn procedure. After quick-learn procedure is completed, perform «DRIVE LEARN PROCEDURE (DAKOTA - 4.7L, DURANGO - 4.7L & RAM PICKUP 1500 - 4.7L)»(ref-158775-S03668743532003102000000) .

TRANSAXLE SHIFT QUALITY QUICK LEARN PROCEDURE

The QUICK LEARN function customizes adaptive parameters of the control module to the transmission characteristics of a vehicle. This gives the customer improved "as received" shift quality compared to the initial parameters stored in the control module.

The nature of the QUICK LEARN function requires that certain features must be taken into consideration.

  1. 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 maneuvers. In most cases, if QUICK LEARN makes a vehicle shift better, the vehicle will return with the same problem.
  2. 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.
  3. If a new control module is installed on a vehicle with a hot engine, QUICK LEARN will cause the control module to report a cold calculated oil temperature. This requires monitoring the calculated oil temperature using the DRBIII®. If the temperature is below 60°F (15°C), the transmission must be run at idle of driven in gear until the temperature goes above 60°F (15°C). If the temperature is above 200°F (93°C), the transmission must cool to below 200°F (93°C).
  4. 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

  1. Upon installation of a new service control module.
  2. After replacement of rebuild of internal transmission components of the torque converter.
  3. If one of more of the clutch volumes indexes contain skewed readings because of abnormal conditions.

To perform the QUICK LEARN procedure, the following conditions must be met.

  1. 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 the air in the clutch circuits to prevent erroneous clutch volume values, which could cause poor initial shift quality.
  2. Place the selector lever in Neutral.
  3. The brakes must be applied.
  4. The engine must be idling.
  5. The throttle angle (TP sensor) must be less than 3 degrees.
  6. The shift lever position must stay in Neutral until prompted to shift into OD.
  7. The shift lever must stay in OD after the "Shift to Overdrive" prompt until the DRBIII® indicates the procedure is completed.
  8. The oil temperature must be 60-200°F (15-93°C).

These conditions must be maintained during the procedure to keep the procedure from being aborted.

The QUICK LEARN procedure is performed with the DRBIII® by selecting TRANSMISSION system, then MISCELLANEOUS functions, then QUICK LEARN. Follow the procedure instructions displayed on the DRBIII®.

VEHICLE DRIVEABILITY COMPUTER RELEARN PROCEDURE

Manufacturer does not provide a specified computer relearn procedure for obtaining proper driveability. If vehicle battery was disconnected or Powertrain Control Module (PCM) was replaced, driving the vehicle will enable the PCM to perform a computer relearn procedure for obtaining proper driveability. Inform customer that driveability may differ from what they are accustomed to until the PCM completes the computer relearn procedure.

DRIVE LEARN PROCEDURE (GRAND CHEROKEE & LIBERTY)

Note. Using DRBIII®, perform the following transmission drive learn procedures based on customer complaint or if symptom exists.

Note. Transmission fluid temperature must be between 80-110°F (27-43°C).

Perform this procedure only if the complaint is for a delayed or harsh shift the first time the transmission is put into gear after the vehicle is allowed to set with the engine not running for at least 10 minutes. Use the following steps to have the TCM learn the 1st N-1 UD Clutch Volume Index (CVI).

  1. Start vehicle only when the engine and ignition have been off for at least 10 minutes.
  2. With the vehicle at a stop and the service brake applied, record the UD CVI while performing a Neutral to Drive shift. During the shift, the UD CVI will temporarily show a different value which is the 1st N-1 UD CVI. The 1st N-1 UD CVI account for air entrapment in the UD clutch that may occur after the engine has been off for a period of time.
  3. Repeat steps 1 and 2 until the recorded 1st N-1 UD CVI value stabilizes.

Note. It is important that this procedure be performed when the transmission fluid temperature is between 80-110°F (27-43°C). If this procedure takes too long to complete fully for the allowed transmission fluid temperature, the vehicle may be returned to the customer with an explanation that the shift will improve daily during normal vehicle usage. TCM also learns at higher fluid temperatures, but these values (line pressure correction values) are not available for viewing on the DRBIII®.

Note. The transmission fluid temperature must be between 80-110°F (27-43°C) to learn the UD CVI. Additional learning occurs at temperatures as low as 0°F (-17°C) and as high as 200°F (94°C). This procedure may be performed at any temperature that experiences poor shift quality. Although the UD CVI may not change, shift quality should improve.

Perform this procedure if the complaint is for a delayed or harsh shift when the transmission is put into gear after the vehicle has had its first shift. Use the following steps to have the TCM learn the N-1 UD Clutch Volume Index (CVI).

  1. Start the engine and shift to Drive.
  2. Move the vehicle forward to a speed of at least 10 MPH and come to a stop. This ensures no air is present in the UD hydraulic circuit.
  3. Perform repeated N-1 shifts at a stop while pausing in Neutral for at least 2-3 seconds and monitor UD CVI volume until the value stabilizes. The value will change during the N-D shift. This is normal since the UD value is different for the N-1 shift than the normal value shown, which is used for 4-3 coastdown and kickdowns. Perform repeated shifts in this temperature range until the UD CVI value stabilizes and the N-1 shifts become smooth.
  4. This procedure may be performed at any temperature that experiences poor N-1 shift quality. Although the UD CVI may not change, shift quality should improve.

Note. The transmission fluid temperature must be above 80°F (27°C).

Use the following steps to have the TCM learn the 1st 2-3 shift OD Clutch Volume Index (CVI).

  1. With the engine running, select Reverse gear for over 2 seconds.
  2. Shift the transmission to Drive and accelerate the vehicle from a stop at a steady 15 degree throttle opening and perform a 2-3 shift while noting the OD CVI. During the shift, a different value may appear on the DRBIII® screen, which is the 1st 2-3 OD CVI.
  3. Repeat steps 1 and 2 until the 1st 2-3 upshift becomes smooth and the 1st 2-3 OD CVI stabilizes.

Note. Transmission fluid temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the OD and 4C Clutch Volume Index (CVIs).

  1. Accelerate the vehicle from a stop at a steady 15 degree throttle opening and perform multiple 1-2, 2-3 and 3-4 upshifts. The 2nd 2-3 shift following a restart or shift to Reverse will be shown during the shift as a value between the 1st 2-3 OD CVI and the normal OD CVI. Updates to the normal OD CVI will occur after the 2nd shift into 3rd gear, following a restart or shift to Reverse.
  2. Repeat step 1 until the 2-3 and 3-4 shifts become smooth and the OD and 4C CVI become stable.

Note. Transmission fluid temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the UD shift volume.

  1. At a vehicle speed between 40-60 MPH, perform repeated 4-3 kickdown shifts.
  2. Repeat step 1 until the UD volume becomes somewhat stable and the shift becomes smooth.

Note. Transmission fluid temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the 2C shift volume.

  1. With a vehicle speed below 30 MPH and the transmission in 3rd gear, perform multiple 3-2 kickdowns.
  2. Repeat step 1 until the 3-2 kickdowns become smooth and the 2C CVI becomes stable.

Note. Transmission fluid temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the LR volume.

  1. With the vehicle speed around 25-30 MPH in manual 2nd, perform manual pulldowns to Low or 1st gear at closed throttle.
  2. Repeat step 1 until the LR CVI become stable and the manual 2-1 becomes smooth.

Note. Transmission fluid temperature must be above 110°F (43°C).

Perform the following shifts. With the vehicle at a stop, perform Neutral to Reverse shifts until the shift is smooth. An unlearned Neutral to Reverse shift may be harsh or exhibit a double bump. If any of the shifts are still not smooth after the clutch volume stabilizes, an internal transmission problem may be present.

Note. Transmission fluid temperature must be above 110°F (43°C).

Use the following steps to have the TCM learn the 2CA CVI.

  1. Accelerate the vehicle through 55 MPH at a steady 10-15 degree throttle opening and perform multiple 4-5 upshifts.
  2. Repeat step 1 until the 4-5 shift becomes smooth and the 2C(A) CVI becomes stable. There is a separate 2C volume used and learned for 4-5 shifts, 2C(A). It is independent of the 2C CVI learned on 3-2 kickdowns

Note. Before replacing the PCM for a failed driver, control circuit or ground circuit, be sure to check the related component/circuit integrity for failures not detected due to a double fault in the circuit. Most PCM driver/control circuit failures are caused by internal failure to components (such as relays and solenoids) and shorted circuits (such as 12-volt pull-ups, drivers and ground sensors). These failures are difficult to detect when a double fault has occurred and only one DTC has set.

Note. If the PCM and the SKIM are replaced at the same time, program the VIN into the PCM first. All vehicle keys will then need to be replaced and programmed to the new SKIM.

The SKIS "Secret Key" is an ID code that is unique to each SKIS. This code is programmed and stored in the SKIM, PCM and transponder chip (ignition key). When replacing the PCM it is necessary to program the secret key into the PCM.

  1. Turn the ignition on (transmission in Park/Neutral).
  2. Use the DRBIII® and select THEFT ALARM, SKIM, then MISCELLANEOUS.
  3. Select PCM REPLACED.
  4. Enter secured access mode by entering the vehicle 4-digit PIN.
  5. Press ENTER to transfer the secret key (the SKIM will send the secret key to the PCM).
  1. Turn the ignition on (transmission in Park/Neutral).
  2. Use the DRBIII® and select THEFT ALARM, SKIM then MISCELLANEOUS.
  3. Select SKIM MODULE REPLACEMENT (GASOLINE).
  4. Program the vehicle 4-digit PIN into the SKIM.
  5. Select COUNTRY CODE and enter the correct country.
  6. Select UPDATE VIN (the SKIM will learn the VIN from the PCM).
  7. Press ENTER to transfer the VIN (the PCM will send the VIN to the SKIM)
  8. The DRBIII® will ask if you want to transfer the secret key. Select ENTER to transfer secret key from the PCM. This will ensure the current vehicle ignition keys will still operate the SKIS.

Using Customer Learn Method

To program ignition keys using customer learn method, 2 programmed valid ignition keys must be available. If 2 programmed valid ignition keys are not available, scan tool method must be used.

  1. Cut the additional Sentry Key Transponder blank(s) to match the ignition switch lock cylinder key code.
  2. Insert first valid ignition key into ignition lock cylinder. Turn ignition on for at least 3 seconds, but no more than 15 seconds. Turn ignition off and remove key.
  3. Within 15 seconds, insert second valid ignition key and turn ignition on. After 10 seconds a chime will sound and SKIS indicator will begin to flash. Turn ignition off and remove key.
  4. Within 60 seconds, insert new ignition key and turn ignition on. After 10 seconds a chime will sound and the SKIS indicator will stop flashing then turn on for 3 seconds and turn off. New key is now programmed to SKIM.
  5. Repeat this procedure for additional new keys. A maximum of 8 keys can be programmed to vehicle. Customer learn method will automatically exit if SKIM senses a non-blank ignition key when a blank ignition key should be sensed, if 8 keys are already programmed or ignition switch is turned off for more than 50 seconds.

SHIFT QUALITY QUICK-LEARN PROCEDURE

The quick learn procedure requires the use of the DRBIII® scan tool.

This program allows the electronic transmission system to recalibrate itself. This will provide the proper transmission operation. The quick learn procedure should be performed if any of the following procedures are performed

  1. Transmission assembly replacement.
  2. Transmission control module replacement.
  3. Solenoid Pack Replacement.
  4. Clutch plate and/or seal replacement.
  5. Valve body replacement or recondition.

To perform the quick learn procedure, the following conditions must be met

  1. The brakes must be applied.
  2. The engine speed must be above 500 RPM.
  3. The throttle angle (TPS) must be less than 3 degrees.
  4. The shift lever position must stay in Park until prompted to shift to overdrive.
  5. The shift lever position must stay in overdrive after the SHIFT TO OVERDRIVE prompt until the DRBIII® indicates the procedure is completed.
  6. The calculated oil temperature must be 60-200°F (16-93°C).