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2013
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6 i Touring Plus
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Repair and Diagnosis
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Symptom Troubleshooting [Engine Control System MZR 2.5]
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No.9 Fast Idle/Runs On
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Notes
July 1:
So it begins
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No.9 Fast Idle/Runs On: Notes
9
FAST IDLE/RUNS ON
DESCRIPTION
Engine speed continues at fast idle after warm-up.
Engine runs after ignition is off.
POSSIBLE CAUSE
Cooling fan system malfunction
ECT sensor malfunction
Improper load signal input
Refrigerant pressure sensor malfunction
Evaporator temperature sensor malfunction
Climate control unit malfunction
Communication error between climate control unit and instrument cluster
Communication error between instrument cluster and PCM
Erratic signal from PSP switch
CPP switch malfunction (MTX)
Neutral switch malfunction (MTX)
TR switch malfunction (ATX)
Communication error between TCM and PCM (ATX)
Air leakage from intake air system
Improper operation of drive-by-wire control system
APP sensor malfunction