LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Automatic Transmission - 5ET50 (MKE)) >> Diagnostic Information and Procedures >> DTC P27A7: Transmission Control Solenoid Valve 1 Calibration Incorrect >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
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 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 Hybrid/EV Powertrain Control Module 1. Perform the Transmission Service Fast Learn Procedure.
    • If the T12 Automatic Transmission was not replaced.
  2. If the T6 Hybrid/EV Powertrain Control Module 1 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 Hybrid/EV Powertrain Control Module 1. Perform the Transmission Service Fast Learn Procedure.
    • If the T6 Hybrid/EV Powertrain Control Module 1 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 Hybrid/EV Powertrain Control Module 1.
scientia non olet · About LEMON Manuals