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Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Toyota Avalon and 2001 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn the ignition to the OFF position. Access the ECM. See Figure. Disconnect the ECM 17-pin connector E6. Using DVOM, measure the resistance between the ECM harness connector E6 terminal No. 15 and ground. See Figure. If resistance is 11-15 ohms, replace the ECM and retest. If resistance is not 11-15 ohms, go to next step.
  2. Disconnect the transaxle harness 6-pin connector E1 (next to PNP switch). Using DVOM, measure the resistance of Green/White wire between the ECM harness connector E6 terminal No. 15 and transaxle harness connector E1 terminal No. 2. See Figure and Figure . If resistance is zero ohms, go to next step. If resistance is more than zero ohms, repair open in Green/White wire between ECM and transaxle. See WIRING DIAGRAMS .
  3. Remove SL solenoid. Using DVOM, measure the resistance between SL solenoid connector terminal and SL solenoid case. If resistance is 11-15 ohms, check and repair internal transaxle harness for open circuit. See WIRING DIAGRAMS . If resistance is not 11-15 ohms, replace faulty SL solenoid.
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