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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P0121: Throttle Position Sensor Circuit Range/Performance >> Diagnostic Aids
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Diagnostic Aids

Using hand-held tester or scan tool, read FREEZE FRAME data. Freeze frame data records engine conditions when malfunction is detected.

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