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TRANSMISSION CONTROL SYSTEM (4L30–E) 7A1–53 DTC P0730/Flashing Code 81 Transmission Incorrect Gear Ratio D07RT015 Circuit Description D The Powertrain Control Module (PCM) calculates the D The slippage of the converter at a high enough engine D This DTC detects a slip at each gear. This is a type Conditions For Setting The DTC D No Output Speed Sensor DTC(s) P0722, P0723. D Not in Park, Neutral or Reverse. D Engine speed is greater than 3500 rpm. D 3 seconds since upshift. D 3 seconds since downshift. D 3 seconds since garage shift (N → D). D And one of the following conditions occur: – Slip is greater than 753 rpm in 1st gear. – Slip is greater than 713 rpm in 2nd gear. – Slip is greater than 694 rpm on 3rd gear. – Slip is greater than 685 rpm on 4th gear. D All conditions met for 5.5 seconds. Action Taken When The DTC Sets D Maximum line pressure. D The PCM will illuminate the CHECK TRANS Lamp. |