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TROUBLE DIAGNOSIS FOR SYMPTOMS AT-211 D E F G H I J K L M A B AT 2007 Pathfinder A/T Does Not Shift: 2nd gear → 1st gear ECS00ELI SYMPTOM: When shifted from 2 2 to 1 1 position, does not downshift from 2nd to 1st gears. DIAGNOSTIC PROCEDURE 1. CHECK SELF-DIAGNOSIS RESULTS Perform self-diagnosis. Refer to AT-88, "SELF-DIAGNOSTIC RESULT MODE" . Is any malfunction detected by self-diagnostic results? YES >> Check the malfunctioning system. Refer to AT-88, "SELF-DIAGNOSTIC RESULT MODE" NO >> GO TO 2. 2. CHECK 1ST POSITION SWITCH CIRCUIT With CONSULT-II 1. Turn ignition switch “ON”. 2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for 3. Read out “1 POSITION SW” switch moving selector lever to Without CONSULT-II 1. Turn ignition switch “ON”. (Do not start engine) 2. Check voltage between A/T device harness connector terminal and ground. OK or NG OK >> GO TO 3. NG >> Repair or replace damaged parts. 3. CHECK A/T FLUID LEVEL Check the A/T fluid level. Refer to AT-12, "Checking the A/T Fluid (ATF)" . OK or NG OK >> GO TO 4. NG >> Refill ATF. Monitor item Condition Display value 1 POSITION SW When setting the selector ON When setting selector OFF LCIA0339E Item Connector No. Terminal No. Condition Data (Approx.) 1st position switch M156 9 - Ground When setting 0V When setting Battery volt- age |