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AUTOMATIC TRANSMISSION DIAGNOSIS TSB Revision AUTOMATIC TRANSMISSION 23A-13 A/T DIAGNOSTIC TROUBLESHOOTING STRATEGY M1231108500127 Use these steps to plan your diagnostic strategy. If complaint from the customer. 2. Verify that the condition described by the customer exists. 3. Check the vehicle for any A/T Diagnostic Trouble Codes (DTCs). 4. If you can not verify the condition and there are no DTCs, the malfunction is intermittent. For − How to Cope with Intermittent Malfunction . 5. If you can verify the condition but there are no DTCs, or the system can not communicate with . 6. If there is a DTC, record the number of the code, then erase the code from memory using scan tool 7. Reconfirm the symptom with a Road Test. for Diagnostic Trouble Codes. 9. If a DTC is not set again, the malfunction is intermittent. For information on how to cope with − How to Cope with Intermittent Malfunction 10.After repairs are completed, conduct a Road Test duplicating the complaint conditions to confirm the DIAGNOSTIC FUNCTION M1231103300032 CHECK "N" RANGE LIGHT The "N" range light flashes once per second if there is an "N" range light flashing items • Input shaft speed sensor • Output shaft speed sensor • Each solenoid valve • Gear incorrect ratio • A/T control relay system CAUTION If the "A/T TEMP" indicator light is illuminated, it means AC004016 AC A/T TEMP |