cleaning tcm on w163 ml320


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2005-2006 Volkswagen Touareg Update Programming Transmission Control Module (TCM) for Improved Upshifting (OE)

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Filed Under (volkswagen) by admin on 16-03-2011

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Service Requirements: Vehicle must meet ALL of the following criteria. 1 – Procedure is valid only for vehicles that show the OE code in the OTIS View Campaign inquiry screen on the day of repair (see Page 11). 2 – Vehicle must be within the Limited New Vehicle Warranty. 3 – Procedure must be performed within the allotted time frame stated in this Technical Bulletin. Procedure: – Raise hood, inspect for white dot located on accessory drive belt tensioner. – If white dot is present, close out the Required Vehicle Update in O.T.I.S. Input appropriate code ( see page 11). – If white dot is not present, follow instructions to perform update programming (Flashing) of transmission control module. Note: When performing the reflash procedure, ALL DTCs for all systems are erased. DTCs linked to Guided Fault Finding function tests will be lost. Therefore, always address stored DTCs for Customer concerns unrelated to the reflash procedure first. The following “Update – Programming” (flashing) process may overwrite any “TUNED” ECM or TCM programming.A “TUNED” ECM or TCM is described as any ECM or TCM altered so as to perform outside the normal parameters and specifications approved by Volkswagen of America, Inc. If you encounter a vehicle with a “Tuned” ECM or TCM, prior to performing the “Upda- te – Programming” (flashing) procedure: D Your Dealership should place the vehicle owner on notice in writing, that their ECM or TCM was found to have been tuned, and that any damage caused by the tuning of the ECM or TCM (including any adverse emissions consequences) will not be covered by Volkswagen of America, Inc. warranties.

1999 Jeep Grand Cherokee Limited INTERNAL TCM Circuit Description

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Filed Under (Jeep) by admin on 28-05-2010

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The TCM is reporting internal errors. Diagnostic Procedure 1. Turn ignition switch to LOCK position. Remove transmission control relay. Measure resistance between ground and relay ground circuit (Black/Yellow wire) in relay connector. If resistance is greater than 5 ohms, repair open circuit. If resistance s not greater than 5 ohms, go to next step. 2. The TCM has an internal problem and must be replaced. P0715: INPUT SPEED SENSOR ERROR Circuit Description DTC P0715 will set if an excessive change in input RPM has been detected in any gear. Possible Causes Intermittent wiring and connector problems. Faulty input speed sensor. Input speed sensor circuits shorted to ground, shorted to voltage, or open. Faulty TCM.

2009 ACCENT TCM UPDATE – IMPROVED DOWNSHIFT RESPONSE DURING ACCELERATION

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Filed Under (Hyundai) by admin on 27-05-2010

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This bulletin provides a procedure to update the Powertrain Control Module (ECM/ TCM) with the most recent shift calibration for 2009 Accent 1.6L vehicles with automatic transaxles. APPLICABLE VEHICLES: Model: 2009 Accent (MC) 1.6L vehicles with automatic transaxle Applicable vehicle production date range: From the beginning of 2009 model year production through October 1, 2008. Refer to the ROM ID information table to verify the version of the TCM ROM ID before attempting to update the TCM software.

2000 Mercedes-Benz ML320 Engine light is on with no acceleration. Fault code is P0120

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Filed Under (Mercedes-Benz) by admin on 11-06-2010

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2000 Mercedes-Benz ML320 3.2L 2001 Mercedes-Benz E320 3.2L 2001 Mercedes-Benz C240 2.6L 2001 Mercedes-Benz E320 4Matic 3.2L 2001 Mercedes-Benz C320 3.2L 2002 Mercedes-Benz ML320 3.2L Potential Causes: Pedal Sensor Throttle Body Wiring Tech Tips: With new sensor the throttle stops must be relearned. Use compatible scan tool and perform adaptations. ALWAYS verify charging system voltage is correct. Tests/Procedures: 1. Connect scan tool and monitor voltages of pedal sensor B37. Signal 1 (Accelerator pedal position: Idle speed):[0.2...0.5] V Signal 2 (Accelerator pedal position: Idle speed):[0.1...0.5] V Signal 1 (Accelerator pedal position:Kickdown):[4.3...4.8] V Signal 2 (Accelerator pedal position:Kickdown):[2.1...2.5] V 3. Test throttle body voltages with scan tool. Potentiometer #2 signal voltage ignition on, accelerator pedal position CTP 0.3-0.9 VDC, WOT > CTP value Potentiometer #1 signal voltage Ignition on, accelerator pedal position CTP 4.0-4.6 VDC, WOT < CTP value.

2007-2008 Ford Explorer Sport Trac DRIVELINE BUMP WHILE BRAKING BELOW 10 MPH

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Filed Under (Ford) by admin on 07-10-2010

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Some 2006-2008 Explorer, Mountaineer and 2007-2008 Explorer Sport Trac vehicles equipped with a 6R60 transmission may exhibit a bump feeling while braking to a stop less than 10 MPH (16 Km/h). The following procedure will improve the bump felt while braking to a stop. SERVICE PROCEDURE NOTE DO NOT ATTEMPT TO REPLACE THE MECHATRONIC UNIT. MECHATRONIC REPAIR / REPLACEMENT IS NOT AUTHORIZED FOR THIS ISSUE. Install Integrated Diagnostic System (IDS) / Portable Diagnostic Software (PDS) or equivalent and ID the vehicle. Update the powertrain control module (PCM) and transmission control module (TCM) calibration using IDS release 57.11 and higher or 58.2 and higher. This new calibration is not included in the VCM 2008.11 DVD. Calibration files may also be obtained at www.motorcraft.com. Since the TCM cannot be independently reprogrammed, reprogram the Programmable Module Installation (PMI) function to ensure that engine and transmission calibrations are updated to the latest level simultaneously. NOTE a. Verify that the TCM Calibration shows 8L2P-7J104-AC, (8L2P-7J104-CC for builds after 12/3/2007) part number after reprogramming is complete. Select the following from the IDS tool, Toolbox, Powertrain, OBD Test Modes, Mode Level 9 Vehicle Info, TCM Cal Part Number. Clear TCM keep alive memory (KAM) and adaptive tables. a. Using IDS: (1) (2) (3) (4) b. Using PDS: (1) (2) Open Toolbox. Choose Powertrain. Choose Reset KAM. Then Choose TCM. Choose all Tests and Calibrations. Scroll down the menu and Choose Reset TCM KAM.