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Home >> Chevrolet >> 2017 >> SS Automatic Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6L80 (MYC) - Repair Instructions - On Vehicle >> Repair Instructions - On Vehicle >> Control Solenoid Valve and Transmission Control Module Assembly Replacement
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Control Solenoid Valve and Transmission Control Module Assembly Replacement

Fig 1: Control Solenoid Valve and Transmission Control Module Assembly
GM1657183Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedures

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the transmission control valve assembly. Refer to Control Valve Lower Body and Upper Body Replacement .
1 Manual Shift Shaft Position Switch Assembly Electrical Connector
TIP:  Release the connector lock before disconnecting. Engage the connector lock after connecting.
2 Control Module Assembly Heat Sink Bolt (Qty: 2)
CAUTION:

Refer to Fastener Caution .


TIP:  Tighten in specified sequence.
Tighten 
8 N.m (71 lb in)
3 Control Solenoid Valve Assembly Bolt (Qty: 4)
TIP:  Tighten in specified sequence.
Tighten 
8 N.m (71 lb in)
4 Control Solenoid Valve Assembly Bolt (Qty: 5)
TIP:  Tighten in specified sequence.
Tighten 
8 N.m (71 lb in)
5 Control Solenoid Valve and Module Assembly

Procedure

  1. Inspect the 4 filter plate retaining tabs. A broken tab may not adequately secure the filter plate to the control solenoid valve assembly.
  2. Align the control solenoid valve assembly with the lower valve body locator pin when assembling.

Refer to Control Module References .
6 Filter Plate

Procedure

  1. If a NEW TCM has been installed into the vehicle, the NEW module needs to be reprogrammed. Refer to Service Programming System (SPS) .
  2. Perform the Reset Transmission Adapts. Refer to Reset Transmission Adapts .
  • Discard filter plate and replace with new.
  • The Service Fast Learn Adapts procedure must be performed when one of the following repairs have been made to the vehicle. Failure to perform the procedure after one of the following repairs may result in poor transmission performance, as well as transmission DTCs being set:
    • Transmission internal service/overhaul
    • Valve body repair or replacement
    • Control solenoid valve assembly replacement
    • TCM software/calibration update
    • Any service in response to a shift quality concern