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Mazda
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2002
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Tribute LX, 4WD
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Repair and Diagnosis
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External Pages
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Different car
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Section 60 (Engine Controls [Self-Diagnostics 2.3L])
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Diagnostic Tests
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DTC P0638: Throttle Actuator Control Range/Performance
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Possible Causes
Possible Causes
WARNING:
This page is about a different car, the 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes are:
PCM malfunction
Throttle body malfunction