Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Control Solenoid Valve and Transmission Control Module Assembly Programming and Setup (6T30/6T40/6T45/6T50)

Chevrolet Sonic Repair Manual / Powertrain / Internal Combustion Powertrain Control / Transmission Control / Control Solenoid Valve and Transmission Control Module Assembly Programming and Setup (6T30/6T40/6T45/6T50)

The following service procedures require either a programming or a setup event be performed for a complete repair. The transmission control module (TCM) is part of the control solenoid valve assembly, and is not serviced separately.

Transmission Control Module (TCM) Replacement

If the TCM is replaced, the following procedures must be performed:

  1. TCM Reprogramming
  2. The Transmission Adaptive Values Learn. Refer to Transmission Adaptive Values Learn.
TCM Reprogramming

    Note:

    • Use a scan tool to view and record the Transmission Control Module ?End Model Part Number in the original TCM prior to starting the TCM reprogramming procedure.
    • In some cases, the TCM and ECM may have to be reprogrammed. When a selection for TCM Transmission Control Module ?Programming is not available, select SEQ Programming Sequence ECM/TCM (Automatic Transmission Only).
  1. If the TCM needs to be reprogrammed. Refer to Service Programming System (SPS).
  2. Perform the Transmission Adaptive Values Learn. Refer to Transmission Adaptive Values Learn.

    Note:

    After programming, perform the following to avoid future misdiagnosis:

  1. Turn the ignition OFF for 30 seconds.
  2. Turn the ignition ON with the engine OFF.
  3. Use the scan tool in order to retrieve history DTCs from all modules.
  4. Clear all history DTCs.
Setup for Component Replacement

The replacement of some components will require a setup procedure for complete repair.

If any of the following components are replaced, the Transmission Adaptive Values Learn procedure must be performed:

  • Transmission replacement
  • Any internal transmission repair
  • Any speed sensor

Refer to Transmission Adaptive Values Learn.

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