There are many ECU controlled systems used in LEXUS
GX470 2006 MY.
1. SFI System (2UZ-FE)
2. Electronic Modulated Suspension & Rear Air Suspension System
3. Kinetic Dynamic Suspension System (KDSS)
4. Tire Pressure Warning System
5. ABS with EBD & BA & TRAC & VSC System
6. Electronic Controlled Automatic Transmission (ECT)
7. Power Tilt and Power Telescopic Steering Column
8. Air Conditioning System
9. Supplemental Restraint System (SRS)
10. Lighting System
11. Wiper and Washer System
12. Audio System
13. LEXUS Navigation System
14. Rear Seat Audio System
15. Rear Seat Entertainment System
16. Back Monitor System
17. Combination Meter
18. Power Window Control System
19. Power Mirror Control System (w/ memory)
Front Power Seat Control System (w/ memory)
21. Power Door Lock Control System
22. Wireless Door Lock Control System
23. Key Reminder Warning System
24. Engine Immobilizer System
25. Theft Deterrent System
26. Multiplex Communication System
27. Can Communication System
28. Cruise Control System
Note. By many Systems is avaible reading "flash-codes" by flashing
I had diagnostic GX470 V8 UXJ120L-GKAZKA a 2005
(Check Engine Lampe ON).
LEXUS GX470 REPAIR MANUAL RM1164U" (p.225) "said": "...5.
DLC3 (Data Link Connector 3). The vehicle's ECM uses the ISO 15765-4
communication protocol. The terminal arrangement of the DLC3 complies with SAE
J1962 and matches the ISO 15765-4 format...".
had search "ISO 14230 5 Baud", but don't connecting to Read DTC, Data
Stream, etc. ;-(
Read "Flash-code" by using Malfunction Lamps by self made Break Box after short pins Tc&CG of J1962 Data Link Connector, e.g. Kinetic Dynamic Suspension System on Lexus GX470 a
select CAN instead of KWP2000 and Turn Fast Mode off - "ALL is
using Lexus Itelligent Tester II (complying
with SAE J1978) and Repair Manual RM1164U I know thah it Car have Performance Pressure Control
Solenoid "D" - Shift Solenoid VALVE SLT (P2714).
The linear solenoid valve (SLT) controls the transmission line pressure for smooth transmission operation based on signals
from the throttle position sensor and the vehicle speed sensor.
The ECM adjusts the duty cycle of the SLT solenoid valve to control hydraulic line pressure coming from the primary regulator
valve. Appropriate line pressure assures smooth shifting with varying engine
DTC Detection Condition: ECM detects a malfunction on SLT (ON side) according to the revolution difference of the turbine and the output shaft, and
also by the oil pressure. (2-trip detection logic).
Area: Shift solenoid valve SLT remains open or closed; Valve body is blocked; Automatic transmission (clutch, brake or gear, etc.).
Malfunction Thresholds: Summation of C1 clutch heat generations = R (Turbine speed - Output speed x Temporary
ratio). INSPECT SHIFT SOLENOID VALVE(SLT): 5.0 to 5.6 Ohm
do check it Out, but the Valve and Connector was O'k (as spec.).
Problem was solved by using repair Manual (p. "FLUID LEVEL CHECK") and
after fill A/T Fluid (3.0 L - !) with "FLUID TEMPERATURE CHECK without
On this Car Transmission requires Toyota Genuine ATF WS.