Trouble No. 4 No lock-up (After warm-up) Warm up engine Coolant temp.: 80°C (176°F) ATF temp.: 50 — 80°C (122 — 176°F) | v Road test Connect a voltmeter to check connector terminals T1 and E1. Is there 7, 5 or 3V in the lock-up range while driving? Yes ——> • Lock-up solenoid stuck • Faulty transmission • Faulty lock-up mechanism | No v Is voltage between ECT ECU No ——> Faulty brake signal 8K and GND terminals as follows? Brake pedal depressed: 12V Brake pedal released: 0V | Yes v • Faulty ECU power source and ground • Faulty throttle position signal