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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)
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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
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No
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Is voltage between ECT ECU No ——> Faulty brake signal
8K and GND terminals as follows?
Brake pedal depressed: 12V
Brake pedal released: 0V
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Yes
v
• Faulty ECU power source and ground
• Faulty throttle position signal