REGISTRATION CAUTION / NOTICE / HINT NOTICE: The Vehicle Identification Number (VIN) must be input into the replacement ECM. HINT: The VIN is in the form of a 17-digit alphanumeric vehicle identification number. The Techstream is required to register the VIN. PROCEDURE 1. DESCRIPTION NOTICE: The Vehicle Identification Number (VIN) must be input into the replacement ECM. HINT: This registration section consists of two parts: Read VIN and Write VIN. (a) Read VIN: Explains the VIN reading process in a flowchart. This process allows the VIN stored in the ECM to be read in order to confirm that the two VINs, the one provided with the vehicle and the one stored in the vehicle's ECM, are the same. (b) Write VIN: Explains the VIN writing process in a flowchart. This process allows the VIN to be input into the ECM. If the ECM is changed, or the ECM VIN and vehicle VIN do not match, the VIN can be registered or overwritten in the ECM by following this procedure. 2. READ VIN (a) Confirm the vehicle VIN. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON. (d) Turn the Techstream on. (e) Enter the following menus: Powertrain / Engine and ECT / Utility / VIN / VIN Read. 3. WRITE VIN (a) Confirm the vehicle VIN. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON. (d) Turn the Techstream on. (e) Enter the following menus: Powertrain / Engine and ECT / Utility / VIN / VIN Write. |
Toyota Tundra Service Manual > Automatic Transmission System: 1-2 Shift (1-2 Shift Valve) (P0781)
DESCRIPTION The 1-2 shift valve performs shifting to 1st gear and other gears. When shifting to 2nd and 4th gears is impossible, or when the ECM directs the transmission to switch to 5th or 6th gear and the engine overruns (clutch slips), this DTC is stored. DTC Code DTC Detection Condition Trouble ...