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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 67 (Automatic Transmission Diagnosis - A340E, A340F) >> Diagnostic Tests >> DTC P0773: SL Solenoid Circuit >> Diagnostic Procedure

Diagnostic Procedure

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  1. Ensure ignition is off. Access ECM. See Figure-Figure . Disconnect appropriate ECM harness connector. Using ohmmeter, measure resistance between ECM connector terminal SL and ground. See PIN VOLTAGE TESTS . If resistance is 11-15 ohms at 68°F (20°C), replace ECM and retest. See appropriate REMOVAL, OVERHAUL & INSTALLATION article in ENGINE PERFORMANCE. If resistance is not within specification, go to next step.
  2. Disconnect solenoid connector at transmission. Check continuity between terminal SL of transmission solenoid connector and corresponding terminal of ECM harness connector. See appropriate ECM PIN VOLTAGE TABLE under PIN VOLTAGE TESTS . See Figure and Figure .
  3. If continuity does not exist, check and repair circuit as needed. If continuity exists, measure resistance between transmission solenoid connector terminal SL and ground. See Figure and Figure . If resistance is 11-15 ohms at 68°F (20°C), replace solenoid. If resistance is not as specified, inspect transmission wiring harness. Replace as needed. If harness is okay, replace solenoid.
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