Every control module on the 2025-2026 Toyota RAV4 — 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) 3.5 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Integrated with valve body inside automatic transmission pan
🔧 Toyota Techstream
⚠️ Requires transmission fluid drain; VIN registration and adaptive reset required; 8-speed models
Plug-In Hybrid Battery Management ECU (PHEV ECU) 3.0 hr R&R dealer / factory tool +1.5 hr ▸ programming details
📍 Under rear cargo floor, near high-voltage battery pack
🔧 Toyota Techstream
⚠️ PHEV models only; high-voltage safety procedures required; charging system registration mandatory
Air Conditioning Amplifier / HVAC Control Module (A/C AMP) 2.8 hr R&R relearn only +0.2 hr ▸ programming details
📍 Behind center dash, integrated with HVAC unit
🔧 Techstream or basic scan tool
⚠️ Actuator calibration relearn required; dash removal necessary; dual-zone climate models
Electric Power Steering Control Module (EPS ECU) 2.5 hr R&R aftermarket tool +0.4 hr ▸ programming details
📍 Integrated with steering column assembly, below dash
🔧 Autel/Launch or Techstream
⚠️ Steering angle sensor calibration required after replacement
ABS Actuator / Brake Control Module (ABS) 1.8 hr R&R aftermarket tool +0.3 hr ▸ programming details
📍 Engine compartment, driver side near master cylinder
🔧 Autel/Launch or Techstream
⚠️ Brake bleeding required after replacement; VIN registration recommended; integrates VSC/traction control
Body Control Module / Multiplex Network Body ECU (BCM) 1.5 hr R&R dealer / factory tool +1.0 hr ▸ programming details
📍 Behind driver side lower dash panel, above kick panel
🔧 Toyota Techstream
⚠️ Controls lighting, wipers, power windows; extensive configuration required for options
4WD Control ECU / All-Wheel Drive Control Module (4WD ECU) 1.5 hr R&R relearn only +0.3 hr ▸ programming details
📍 Under vehicle, mounted to transfer case or near rear differential
🔧 Techstream or aftermarket
⚠️ AWD models only; initialization drive cycle required; dynamic torque vectoring
Power Back Door ECU (PBD ECU) 1.2 hr R&R relearn only +0.3 hr ▸ programming details
📍 Inside liftgate, driver side panel
🔧 Techstream or aftermarket
⚠️ Power liftgate models; height memory relearn required; hands-free kick sensor on higher trims
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 to bulkhead
🔧 Toyota Techstream with TIS subscription
⚠️ VIN registration and immobilizer pairing required; seed-key authentication; updated software architecture
Audio / Multimedia Display / Navigation System (RADIO/NAV) 1.2 hr R&R relearn only +0.3 hr ▸ programming details
📍 Center dash, integrated display unit
🔧 Techstream or self-initialization
⚠️ Audio Multimedia system; 8-inch or 10.5-inch touchscreen; wireless Apple CarPlay/Android Auto
SRS Airbag Control Module (SRS ECU) 1.0 hr R&R aftermarket tool +0.3 hr ▸ programming details
📍 Center console area, under center floor carpet between front seats
🔧 Autel/Launch or Techstream
⚠️ Crash data must be cleared; occupant classification system calibration may be needed
Driver Monitoring System Camera (DMS CAMERA) 1.0 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Instrument cluster area, facing driver
🔧 Toyota Techstream
⚠️ Driver attention monitoring; calibration and privacy settings configuration required
Gateway ECU / Communication Gateway (GATEWAY) 1.0 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Behind driver side lower dash panel, near BCM
🔧 Toyota Techstream
⚠️ CAN bus hub; VIN registration required; rare failure point
Smart Key ECU / Immobilizer ECU (SMART KEY ECU) 1.0 hr R&R dealer / factory tool +1.0 hr ▸ programming details
📍 Behind lower center dash, near steering column
🔧 Toyota Techstream
⚠️ All keys must be re-registered; ECM pairing required; security seed-key authentication
Pre-Collision System Millimeter Wave Radar (PCS RADAR) 1.0 hr R&R dealer / factory tool +0.8 hr ▸ programming details
📍 Behind front grille, center lower bumper area
🔧 Toyota Techstream
⚠️ TSS 3.0 system; radar aiming/calibration required after replacement; front end removal
Pre-Collision Camera / Lane Departure Camera (PCS CAMERA) 0.8 hr R&R dealer / factory tool +0.8 hr ▸ programming details
📍 Windshield mounted, behind rearview mirror
🔧 Toyota Techstream with calibration target
⚠️ TSS 3.0 system; static calibration required; windshield replacement affects aim
Combination Meter / Instrument Cluster (METER) 0.8 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Instrument panel, behind steering wheel
🔧 Toyota Techstream
⚠️ Mileage programming required; VIN registration mandatory; updated digital display
Power Seat Control Module (SEAT ECU) 0.8 hr R&R relearn only +0.2 hr ▸ programming details
📍 Under driver or passenger seat
🔧 Techstream or self-initialization
⚠️ Power seat models; memory seat position relearn required on higher trims
Data Communication Module / Telematics Control Unit (DCM) 0.8 hr R&R dealer / factory tool +0.5 hr ▸ programming details
📍 Behind glove box or overhead console area
🔧 Toyota Techstream
⚠️ Connected Services; cellular subscription activation required; 4G LTE or 5G capability
Adaptive Front Lighting System ECU / LED Headlight Control Module (AFS ECU) 0.7 hr R&R relearn only +0.2 hr ▸ programming details
📍 Behind driver side headlight assembly
🔧 Techstream or aftermarket
⚠️ LED/adaptive headlights standard; auto-leveling calibration required; automatic high beam function
Clearance Sonar ECU / Parking Assist ECU (SONAR ECU) 0.6 hr R&R relearn only +0.2 hr ▸ programming details
📍 Behind rear bumper, driver side
🔧 Techstream or aftermarket
⚠️ Sensor calibration relearn required; front and rear sensors on higher trims
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?
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