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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (Automatic Transmission - 5ET50 (MKE)) >> Diagnostic Information and Procedures >> DTC P27A7 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

P27A7 is a informational DTC.

NOTE:

Solenoid performance data is only available for the variable force solenoid, not the On/Off solenoids.

  1. If the T12 Automatic Transmission Assembly or the Q23 Line Pressure Control Solenoid was replaced.
    • Obtain the solenoid performance data for the variable force solenoids from the TIS Service Information web site. Program the data into the existing T6 Power Inverter Module. Perform the Transmission Service Fast Learn Procedure.
    • Go to next step: If the T12 Automatic Transmission was not replaced.
  2. If the T6 Power Inverter Module was replaced.
    • Obtain the existing solenoid performance data for the variable force solenoids from the TIS Service Information web site. Program the data into the new T6 Power Inverter Module. Perform the Transmission Service Fast Learn Procedure.
    • Go to next step: If the T6 Power Inverter Module was not replaced.
  3. If the Q23 Line Pressure Control Solenoid was replaced.
    • Obtain the solenoid performance data from the TIS Service Information web site for the new solenoids. Program the data into the existing T6 Power Inverter Module.
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