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TROUBLESHOOTING AUTOMATIC TRANSMISSION 23A-59 STEP 2. M.U.T.-III actuator test OK: Operating sound can be heard. Q: Is the check result normal? YES : Intermittent malfunction (Refer to GROUP 00 − How to Cope with Intermittent Malfunction .) NO : Go to Step 3. STEP 3. Connector check: B-15 A/T control Q: Is the check result normal? YES : Go to Step 4. NO : Repair the defective connector. STEP 4. Measure the resistance at A/T control OK: 2.7 − 3.4 Ω (A/T fluid temperature 20°C) Q: Is the check result normal? YES : Go to Step 5. NO : Check the second solenoid valve and STEP 5. Measure the voltage at A/T-ECU connector B-15. (2) Turn the ignition switch to the ON position. connector C-19 terminal No.16 and earth. OK: 6 − 9 V Q: Is the check result normal? YES : Go to Step 8. NO : Go to Step 6. STEP 6. Connector check: B-11 intermediate Q: Is the check result normal? YES : Go to Step 7. NO : Repair the defective connector. STEP 7. Check the harness between A/T control Q: Is the check result normal? YES : Go to Step 8. NO : Repair the wiring harness. STEP 8. M.U.T.-III actuator test OK: Operating sound can be heard. Q: Is the check result normal? YES : Intermittent malfunction (Refer to GROUP 00 − How to Cope with Intermittent Malfunction .) NO : Replace the A/T-ECU. STEP 9. Connector check: B-15 A/T control Q: Is the check result normal? YES : Go to Step 10. NO : Repair the defective connector. STEP 10. Measure the resistance at A/T control OK: 2.7 − 3.4 Ω (A/T fluid temperature 20°C) Q: Is the check result normal? YES : Go to Step 11. NO : Check the solenoid valve harness. STEP 11. Connector check: A-19X A/T control Q: Is the check result normal? YES : Go to Step 12. NO : Repair the defective connector. STEP 12. Check the harness between A/T control Q: Is the check result normal? YES : Go to Step 8. NO : Repair the wiring harness. |