We use cookies for basic analytics — nothing loads until you accept. You can decline and keep browsing normally. Privacy Policy

TOYOTA / LEXUS | PETROL · Petrol / Hybrid

DENSO GEN1 ECU

Send your DENSO GEN1 read file and get it back with IMMO OFF, DTC Removal and CAT OFF applied — online, in minutes, checksum corrected where required.

Toyota Denso Gen1 ECUs used in Toyota, Lexus and Scion petrol vehicles, approx. 2003-2015.

DENSO GEN1 at a glance

ECU manufacturer
Denso
Vehicle brand
TOYOTA / LEXUS | PETROL
Fuel / powertrain
Petrol / Hybrid
File size
0.4–1 MB
Hardware
Processors: Denso NEC 76F0038 / 76F0039 / 76F0040 / 76F0070 / 76F0085 All types
Hardware
Denso NEC 76F00XX (FID:24), Denso NEC TCM 76F00XX (FID:26)

DENSO GEN1 features

DENSO GEN1 IMMO OFF

20 credits

Removes the immobilizer check so the engine starts without key or immobilizer-module authentication — for ECU swaps and lost-key situations.

Also known as: gen1 denso immo off · denso gen1 immo off · gen1 immo off · gen1 immo delete

DENSO GEN1 DTC Removal

20 credits

Permanently switch off selected diagnostic trouble codes so they no longer set, store or light the check-engine lamp. Pick the exact codes you need disabled.

Also known as: gen1 denso dtc · denso gen1 dtc · gen1 dtc · gen1 dtc off · gen1 dtc delete

DENSO GEN1 CAT OFF

20 credits

Disables catalytic-converter efficiency monitoring and its related fault codes for vehicles running without a catalyst.

Fault codes it switches off: P0420 · P0430

Also known as: gen1 denso cat off · denso gen1 cat off · gen1 cat off · gen1 cat delete

DENSO GEN1 EVAP OFF

20 credits

Disables evaporative-emission system monitoring and its related fault codes.

Fault codes it switches off: P00FE · P017F · P043E · P043F · P0440 · P0441 · P0442 · P0443 · P0444 · P0445 · P0446 · P0447 and 103 more

Also known as: gen1 denso evap off · denso gen1 evap off · gen1 evap off · gen1 evap delete

DENSO GEN1 Lambda / O2 OFF

20 credits

Disables rear (post-cat) oxygen-sensor monitoring and its related fault codes.

Fault codes it switches off: P0030 · P0031 · P0032 · P0036 · P0037 · P0038 · P0040 · P0041 · P0042 · P0043 · P0044 · P0050 and 332 more

Also known as: gen1 denso o2 off · denso gen1 o2 off · gen1 o2 off · gen1 lambda off

DENSO GEN1 VMAX / Speed Limiter OFF

30 credits

Removes or raises the factory top-speed limiter.

Also known as: gen1 denso vmax off · denso gen1 vmax off · gen1 vmax off · gen1 speed limiter removal

DENSO GEN1 DPF OFF

20 credits

Disables diesel-particulate-filter monitoring, regeneration and related fault codes for DPF-delete builds.

Fault codes it switches off: P006B · P0470 · P0471 · P0472 · P0473 · P0474 · P0475 · P0476 · P0477 · P0478 · P0479 · P047A and 189 more

Also known as: gen1 denso dpf off · denso gen1 dpf off · gen1 dpf off · gen1 dpf delete

DENSO GEN1 EGR OFF

20 credits

Disables exhaust-gas-recirculation monitoring and its related fault codes for EGR-delete builds.

Fault codes it switches off: P0400 · P0401 · P0402 · P0403 · P0404 · P0405 · P0406 · P0407 · P0408 · P0409 · P040A · P040B and 156 more

Also known as: gen1 denso egr off · denso gen1 egr off · gen1 egr off · gen1 egr delete

Cars and engines using the DENSO GEN1

Typical applications — always confirm the ECU type on the unit or in your read file before ordering.

VehiclesEnginePower
Toyota Aygo, Toyota Yaris 1.0 1KR-FE 64-69 hp
Toyota Yaris, Toyota Vitz 1.3 2SZ-FE and 1NR-FE 87-100 hp
Toyota Corolla, Toyota Auris, Toyota Yaris 1.6 1ZR-FE 124-132 hp
Toyota Corolla, Toyota Auris, Toyota Avensis, Toyota Matrix, Scion xB 1.8 1ZZ-FE and 2ZR-FE 129-136 hp
Toyota Prius XW20/XW30, Toyota Auris HSD 1.8 hyb 2ZR-FXE 99 hp engine / 136 hp system
Toyota Camry, Toyota RAV4, Toyota Highlander, Scion tC 2.4 2AZ-FE 152-166 hp
Toyota Avensis, Toyota RAV4, Toyota Camry 2.0 1AZ-FE and 3ZR-FE 147-158 hp
Toyota Hilux, Toyota Fortuner, Toyota Tacoma, Toyota HiAce 2.7 2TR-FE 159-166 hp
Toyota FJ Cruiser, Toyota Tacoma, Toyota Prado, Toyota 4Runner 4.0 1GR-FE 236-270 hp
Toyota Camry, Toyota Sienna, Toyota Highlander, Toyota RAV4, Lexus RX350, Lexus ES350 3.5 2GR-FE 270-275 hp

DENSO GEN1 engines

1.0 1KR-FE 1.3 2SZ-FE and 1NR-FE 1.6 1ZR-FE 1.8 1ZZ-FE and 2ZR-FE 1.8 hyb 2ZR-FXE 2.4 2AZ-FE 2.0 1AZ-FE and 3ZR-FE 2.7 2TR-FE 4.0 1GR-FE 3.5 2GR-FE

Frequently asked questions

What can be done on a DENSO GEN1 ECU?

Dr.Tuning supports IMMO OFF, DTC Removal, CAT OFF, EVAP OFF, Lambda / O2 OFF, VMAX / Speed Limiter OFF, DPF OFF, EGR OFF on the DENSO GEN1, processed online in minutes.

Which cars use the DENSO GEN1 ECU?

The DENSO GEN1 is found in Toyota Aygo, Toyota Yaris, Toyota Vitz, Toyota Corolla, Toyota Auris, Toyota Avensis, Toyota Matrix, Scion xB, Toyota Prius XW20/XW30, Toyota Auris HSD, Toyota Camry, Toyota RAV4, Toyota Highlander, Scion tC, Toyota Hilux, Toyota Fortuner, Toyota Tacoma, Toyota HiAce, Toyota FJ Cruiser, Toyota Prado, Toyota 4Runner, Toyota Sienna, Lexus RX350, Lexus ES350.

Which engines does the DENSO GEN1 control?

Engines include 1.0 1KR-FE, 1.3 2SZ-FE and 1NR-FE, 1.6 1ZR-FE, 1.8 1ZZ-FE and 2ZR-FE, 1.8 hyb 2ZR-FXE, 2.4 2AZ-FE, 2.0 1AZ-FE and 3ZR-FE, 2.7 2TR-FE, 4.0 1GR-FE, 3.5 2GR-FE.

How do I modify a DENSO GEN1 file?

Read the ECU with your tool, upload the file to Dr.Tuning, choose the features you need, and download the modified file — checksums are handled where required.