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AUTOMATIC TRANSAXLE DIAGNOSIS TSB Revision AUTOMATIC TRANSAXLE 23A-47 • Voltage at pin 78 increases from around 0.7 volts DTC SET CONDITIONS TROUBLESHOOTING HINTS (The most likely causes for this code to be set:) • Malfunction of the throttle position sensor circuit • Damaged harness, connector • Malfunction of the PCM DIAGNOSIS Required Special Tool: STEP 1. 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 : This malfunction is intermittent. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service − How to Cope with Intermittent Malfunction NO : Go to Step 2. AC001252 MB991502 16 PIN AB |