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AUTOMATIC TRANSAXLE DIAGNOSIS TSB Revision AUTOMATIC TRANSAXLE 23A-231 STEP 8. Using scan tool MB991502, check data list item 11: CAUTION To prevent damage to scan tool MB991502, always turn the Throttle Position Sensor. • With the throttle valve in idle position, voltage should be • With the throttle valve in full-open position, voltage (4) Turn the ignition switch to "LOCK" (OFF) position. Q: Is the sensor operating properly? YES : Go to Step 9. , code number 11, 12, 14: Throttle Position Sensor System. Then check the symptom. STEP 9. Disassemble and clean the valve body. . Q: Is the repair possible and the symptom eliminated? YES : Diagnosis is complete. symptom. Go to Step 10. STEP 10. Replace the PCM. Q: Is the symptom eliminated? YES : Diagnosis is complete. INSPECTION PROCEDURE 8: Shift Shocks when Shifting from "N" to "D," "N" to "R" and Long Delay COMMENT TROUBLESHOOTING HINTS (The most likely causes for this code to be set:) • Abnormal line pressure • Malfunction of the oil pump • Malfunction of the valve body • Malfunction of the PCM AC003081AC MB991502 DATA LINK AC001860 AB VALVE |