SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2006IMPALA LTZREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSAXLE - 4T65-E - INTRODUCTION (2 OF 2)REPAIR INSTRUCTIONSTRANSMISSION CONTROL MODULE (TCM) REPLACEMENT
2006 Chevrolet Impala LTZ

Transmission Control Module (TCM) Replacement

2006 Chevrolet Impala LTZSECTION Transmission Control Module (TCM) Replacement
Fig 1: Replacing Transmission Control Module (TCM)
GM1617088Courtesy of GENERAL MOTORS CORP.
Transmission Control Module (TCM) Replacement

Callout Component Name
Fastener Tightening Specifications:  Refer to Fastener Tightening Specifications .

Preliminary Procedures

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (RPOs LZE/LZ4/LZ9) or Battery Negative Cable Disconnect/Connect Procedure (RPO LS4) .
  2. Remove the air cleaner housing. Refer to Air Cleaner Assembly Replacement in Engine Controls-3.5 L, Air Cleaner Assembly Replacement in Engine Controls-3.9 L, Air Cleaner Assembly Replacement in Engine Controls-5.3 L
  3. Position the engine control module out of the way. Refer to Engine Control Module (ECM) Replacement in Engine Controls-3.5 L, Engine Control Module (ECM) Replacement in Engine Controls-3.9 L, Engine Control Module (ECM) Replacement in Engine Controls-5.3 L.
1 Module, Transmission Control (TCM).
Tip:  Disconnect the TCM electrical connector.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.