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P0613-INTERNAL TCM 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 OR GROUND CIRCUIT POWERTRAIN CONTROL MODULE Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS- Theory of Operation The internal Watchdog (WD) is a separate hardware circuit that continuously monitors the microprocessor. To insure 1) Send the signal too late > 15ms 2) Send the signal too early < 13ms 3) Delay test < 590ms If the watchdog input signal arrives too early or too late, the Watchdog Fault line will go low and the watchdog delay The Delay Test checks the delay time out. The Delay Monitor line is pulled low, which forces the delay to start timing Diagnostic Test 1. CHECK THE WIRING AND CONNECTORS Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or NOTE: Due to the integration of the Powertrain and Transmission Control Modules, the transmission part of Check for any Service Bulletins that may apply. Were there any problems found? Yes >> Repair the power and/or ground circuits as necessary. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. No >> Replace the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. 21 - 42 AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS WK |