Cressida L6-3.0L DOHC (7M-GE) (1989)
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1. Engine and oxygen sensor must be cold, 68°F or less.
2. Disconnect the oxygen sensor from electrical connector.
3. Using an ohmmeter, measure the resistance between terminals +B and HT. Fig. 42
4. The OS heater resistance should be 5.1 - 6.3 Ohms.
5. If not as specified, replace the oxygen sensor.
