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P0884-POWER UP AT SPEED (CONTINUED) For the Transmission circuit diagram (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes POWER UP AT SPEED Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS- Theory of Operation If a vehicle loses power to the Transmission Control System, the solenoids (LR, 2C, OD, UD, 4C) will go to their This code identifies that power to the Transmission Control System was restored when the gear selector was in a 9 Drive 9 position while the vehicle was moving at speeds above 32 Kmh (20 MPH). This DTC does not indicate a problem with the transmission or Transmission Control System, instead, it suggests intermittent problems in Diagnostic Test 1. CHECK FOR INTERMITTENT POWER AND GROUND CIRCUITS This DTC is set when the Transmission portion of the Powertrain Control Module is initialized while the vehicle is Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. NOTE: Due to the integration of the Powertrain and Transmission Control Modules, the transmission part of With the scan tool, check the EATX DTC EVENT DATA to help identify the conditions in which the DTC was set. If there are no possible causes remaining, view repair. Repair Check all power and ground circuits to the PCM and repair as necessary. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. 21 - 194 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS WK |