Every control module on the 2023-2026 Toyota Sequoia — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Transmission Control Module (TCM) 3.8 hr R&R dealer / factory tool +0.6 hr ▸ programming details
📍 Integrated within 10-speed automatic transmission valve body, accessed from underneath vehicle
🔧 Toyota Techstream with TIS subscription
⚠️ 10-speed automatic; requires transmission fluid drain and valve body removal; VIN registration and adaptive learning reset required
Battery Management ECU / Hybrid Battery Control Module (BATTERY ECU) 3.0 hr R&R dealer / factory tool +0.8 hr ▸ programming details
📍 Integrated with hybrid battery pack under rear cargo floor
🔧 Toyota Techstream with TIS subscription
⚠️ Monitors hybrid battery cell voltages and temperature; high voltage safety procedures required; calibration needed
ABS Actuator / Brake Control Module (ABS/VSC ECU) 2.8 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Engine compartment, driver side near master cylinder, integrated actuator and control unit
🔧 Toyota Techstream with TIS subscription
⚠️ Brake system bleed required after replacement; includes VSC/traction control functions; VIN registration needed
Electric Power Steering Control Module (EPS ECU) 2.2 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Integrated with steering column assembly, accessed from under dash driver side
🔧 Toyota Techstream with TIS subscription
⚠️ Steering angle sensor calibration required after replacement; torque sensor zero-point learning needed
Air Conditioning Amplifier / HVAC Control Module (A/C AMP) 2.0 hr R&R aftermarket tool +0.3 hr ▸ programming details
📍 Behind center dash, integrated with climate control head unit
🔧 Toyota Techstream or Autel/Launch
⚠️ Actuator calibration required after replacement; tri-zone climate control standard
4WD Control ECU / Transfer Case Control Module (4WD ECU) 2.0 hr R&R aftermarket tool +0.3 hr ▸ programming details
📍 Under vehicle, mounted on or near transfer case assembly
🔧 Toyota Techstream or Autel/Launch
⚠️ Controls 4WD system operation and transfer case shifting; initialization required after replacement
SRS Airbag Control Module (SRS ECU) 1.8 hr R&R dealer / factory tool +0.4 hr ▸ programming details
📍 Center console area, beneath center stack
🔧 Toyota Techstream with TIS subscription
⚠️ Battery disconnect required; wait 90 seconds before work; crash data retrieval available; VIN registration required
Power Back Door ECU (PBD ECU) 1.8 hr R&R aftermarket tool +0.3 hr ▸ programming details
📍 Inside liftgate, driver side near hinge area
🔧 Toyota Techstream or Autel/Launch
⚠️ Power liftgate with hands-free operation; height memory relearn required; pinch protection calibration needed
Audio / Navigation / Multimedia System (RADIO/NAV) 1.8 hr R&R relearn only +0.2 hr ▸ programming details
📍 Center dash, integrated head unit (14-inch touchscreen standard)
🔧 Self-initialization or Toyota Techstream
⚠️ Audio Multimedia system with cloud navigation; OTA update capable; Bluetooth/phone pairing needed
Body Control Module / Multiplex Network Body ECU (BCM) 1.5 hr R&R dealer / factory tool +1.0 hr ▸ programming details
📍 Behind driver side kick panel, above fuse box area
🔧 Toyota Techstream with TIS subscription
⚠️ Controls lighting, power windows, locks, wipers; extensive configuration required for vehicle options
Pre-Collision Camera / Lane Departure Camera (PCS CAMERA) 1.5 hr R&R dealer / factory tool +1.2 hr ▸ programming details
📍 Behind windshield, top center near rearview mirror
🔧 Toyota Techstream with TIS subscription and calibration targets
⚠️ TSS 2.5 system; windshield replacement requires recalibration; static calibration with targets required
Parking Assist ECU / Clearance Sonar ECU (PA ECU) 1.5 hr R&R aftermarket tool +0.3 hr ▸ programming details
📍 Behind rear bumper cover, center area
🔧 Toyota Techstream or Autel/Launch
⚠️ Sensor calibration required; front and rear sensors standard; integrated with parking assist system
Adaptive Variable Suspension Control ECU (AVS ECU) 1.5 hr R&R aftermarket tool +0.3 hr ▸ programming details
📍 Under vehicle, near rear axle
🔧 Toyota Techstream or Autel/Launch
⚠️ Standard on most trims; height sensor calibration may be required; load-leveling function
Gateway ECU / Communication Gateway (GATEWAY) 1.3 hr R&R dealer / factory tool +0.6 hr ▸ programming details
📍 Behind driver side kick panel or integrated with BCM
🔧 Toyota Techstream with TIS subscription
⚠️ Manages CAN bus and Ethernet communication between modules; VIN registration required
Combination Meter / Digital Instrument Cluster (METER) 1.2 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Instrument panel, behind steering wheel
🔧 Toyota Techstream with TIS subscription
⚠️ 12.3-inch digital cluster; mileage programming required by dealer; VIN registration mandatory; configuration for vehicle options needed
Engine Control Module / Powertrain Control Module (ECM/PCM) 1.2 hr R&R dealer / factory tool +0.8 hr ▸ programming details
📍 Engine compartment, driver side firewall area, mounted on bracket near brake master cylinder
🔧 Toyota Techstream with TIS subscription
⚠️ Twin-turbo V6 hybrid system; VIN registration and immobilizer pairing required; seed-key authentication needed
Smart Key ECU / Immobilizer ECU (SMART KEY ECU) 1.2 hr R&R dealer / factory tool +0.8 hr ▸ programming details
📍 Behind center dash near steering column
🔧 Toyota Techstream with TIS subscription
⚠️ All keys must be registered; ECM/PCM pairing required; security seed-key authentication mandatory; digital key support
Pre-Collision System Millimeter Wave Radar (PCS RADAR) 1.2 hr R&R dealer / factory tool +1.0 hr ▸ programming details
📍 Behind front grille, center position behind Toyota emblem
🔧 Toyota Techstream with TIS subscription and alignment tool
⚠️ TSS 2.5 system; radar aiming/calibration required after replacement; requires alignment targets and procedure
Power Seat Control Module (SEAT ECU) 1.2 hr R&R relearn only +0.2 hr ▸ programming details
📍 Under driver and/or passenger seat, integrated with seat track assembly
🔧 Self-initialization or Toyota Techstream
⚠️ Memory seat position relearn required; ventilation/heating functions integrated; massage function on Capstone trim
Wireless Charging Module (QI CHARGER) 1.0 hr R&R no coding
📍 Center console, front storage area
⚠️ Qi wireless phone charging; plug-and-play replacement
Adaptive Front Lighting System ECU / LED Control Module (AFS ECU) 1.0 hr R&R aftermarket tool +0.2 hr ▸ programming details
📍 Behind headlight assemblies or integrated within headlight housing
🔧 Toyota Techstream or Autel/Launch
⚠️ Auto-leveling and adaptive beam control; headlight aiming required after replacement
Data Communication Module / Telematics Control Unit (DCM) 1.0 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Behind center dash or under rear cargo area, near antenna connection
🔧 Toyota Techstream with TIS subscription
⚠️ Safety Connect / Remote Connect functions; 4G LTE with Wi-Fi hotspot; cellular subscription required; VIN registration needed
Trailer Brake Control Module (TRAILER ECU) 1.0 hr R&R aftermarket tool +0.2 hr ▸ programming details
📍 Under driver side dash or behind center console, near brake pedal assembly
🔧 Toyota Techstream or Autel/Launch
⚠️ Factory integrated trailer brake controller standard; calibration for trailer weight required; up to 9,000 lb towing
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour?
Tell us — corrections ship fast here.