Bosch · OBD1300 Scan Tool
This error message appears during the Cylinder Balance Test if the throttle pedal is moved after the initial press and release, or if noise from the throttle position sensor interferes with the test.
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Ensure the throttle is not touched after the initial press and release during the test.
Review the Cylinder Balance Test procedure in the manual.
Check the wiring and connections to the TPS.
Consider if TPS issues might be causing false readings.