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2. If necessary, clean each side of the filter plate assembly and install the filter plate assembly back on the control solenoid (w/body and TCM) valve assembly. Clean the mounting 3. Bolt the DT-47825 to the control solenoid (w/body and TCM) valve assembly mounting surface. See Special Tools. Use the bolts and washers supplied with the tool to attach the 4. Connect the test harness supplied with the DT-47825 to the vehicle harness and to the TCM. See Special Tools. Engage the connector locks. 5. Connect shop air to the DT-47825 air inlet. See Special Tools. Do not exceed the recommended air pressure of 620.5-689.4 Kpa (90-100 psi). 6. With the ignition ON and the scan tool communicating with the vehicle, command the solenoid in question On and Off. Watch the air pressure gage for a change as you command 7. The solenoid should allow air pressure to flow or prevent air pressure flow depending on the solenoid state. The test results are read on the pressure gage. 8. Command the solenoid valve On and Off several times to determine the condition of the solenoid in question. Release the test air pressure from the pressure the gage between Control Solenoid (w/Body and TCM) Valve Assembly Solenoid Performance Test Plate to Solenoid Test Plate Port Key On, Engine Off (KOEO) Normal State Commanded State *Line PC Solenoid 1 G No flow to gage Increase/Decrease Approximately 68-103 Kpa (10-15 psi) per command PC Solenoid 2 C No flow to gage On - Full flow to gage Off - No flow to gage PC Solenoid 3 A Full flow to gage On - Full flow to gage Off - No flow to gage PC Solenoid 4 B No flow to gage On - Full flow to gage Off - No flow to gage PC Solenoid 5 F No flow to gage On - Full flow to gage Off - No flow to gage
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
SERVICE FAST LEARN ADAPTS Service Fast Learn Adapts is a procedure for 6 speed automatic transmissions in which a series of The Service Fast Learn Adapts procedure must be performed when one of the following repairs Transmission internal service/overhaul Valve body repair or replacement Control solenoid (w/body and TCM) valve assembly replacement TCM software/calibration update Any service in response to a shift quality concern Shift Solenoid 1 H Full flow to gage Off - No flow to gage On - Full flow to gage Shift Solenoid 2 D No flow to gage Off - No flow to gage On - Full flow to gage TCC PC Solenoid E No flow to gage On - Full flow to gage Off - No flow to gage * Increment solenoid to maximum pressure and then decrease to minimum pressure to ensure IMPORTANT: Ensure the following conditions are met before performing the Service Fast Learn Adapts procedure: Drive wheels are blocked Parking brake is applied Service brake is applied Zero percent throttle and no external engine RPM control Transmission fluid temperature (TFT) is between 70-100°C
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
1. Using the scan tool, navigate to Service Fast Learn Adapts commands. 1. F1: Transmission Control Module 2. F5: Module Setup 3. F0: Fast Learn Adapts Process 2. Use the scan tool to perform the Service Fast Learn Adapts procedure. 1. PARK test setup 2. DRIVE mode 3. REVERSE mode These stages are automatically initiated and controlled by the scan tool. As the 3. Once the procedure is complete, shut OFF the engine and power down the TCM. You will lose communication to the scan tool. 4. Restart the engine. This will complete the Service Fast Learn Adapts procedure. The following are brief descriptions of each of the 3 different stages. PARK TEST SETUP While the transmission is in PARK, Service Fast Learn Adapts will prepare for test cycles. The Transmission gear selector has been cycled from Park to IMPORTANT: If at any time during the procedure, required conditions are not met, Service Fast Learn Adapts may abort and the IMPORTANT: There are 3 stages required to successfully complete the Service Fast Learn Adapts procedure:
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
The scan tool will instruct the operator to select park and apply the brake only. DRIVE MODE Once the PARK setup has completed, the scan tool instructs the driver to select DRIVE. Once REVERSE MODE Next, the scan tool instructs the driver to select REVERSE. The TCM engages the individual TROUBLESHOOTING If the Service Fast Learn Adapts will not run and the above stated conditions have been met, TFT is between 70-100°C (158-212°F). Brakes and brake switch are functioning properly. No active DTCs. CAUTION: Block the wheels before selecting DRIVE. While in DRIVE, if the Scan Tool loses communication or becomes CAUTION: Block the wheels before selecting REVERSE. While in REVERSE, if the Scan Tool loses communication or becomes IMPORTANT: When the Service Fast Learn Adapts procedure is completed, the transmission will remain in a neutral state.
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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