Read freeze frame data using TOYOTA hand-held tester or OBD II scan tool. Because freeze frame records the engine conditions when the malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean or rich, etc. at the time of the malfunction.
Remove the THRO fuse from the Engine room J/B. CHECK:
Check the continuity of the THRO fuse. OK:
Check for short in all harness and components connected to THRO fuse.
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