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AUTOMATIC TRANSAXLE DIAGNOSIS TSB Revision AUTOMATIC TRANSAXLE 23A-306 DIAGNOSIS Required Special Tool: • MB991958: Scan Tool (MUT-III Sub Assembly) • MB991824: V.C.I. • MB991827: MUT-III USB Cable • MB991910: MUT-III Main Harness A STEP 1. Using scan tool MB991958, check actuator test CAUTION To prevent damage to scan tool MB991958, always turn the • Item14: INVECS-II Cancel Command. • Drive the vehicle and confirm the gear shifting corre- spond to the standard shift line of the shift pattern . (4) Turn the ignition switch to the "LOCK" (OFF) position. line of the shift pattern diagram? INVECS-II system, but is not abnormal. NO : Go to Step 2. STEP 2. Check the shift points. fluid is -29 °C (84°F) or less (early), or 125°C (257°F) or more (late)? INVECS-II system, but is not abnormal. NO : Go to Step 3. STEP 3. Disassemble and clean the valve body. Replace the valve body assembly if the damages are thought YES : The procedure is complete. AC305412 AB MB991910 DATA LINK CONNECTOR MB991824 MB991827 AC001860 AB VALVE |