Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2005 Lexus GS 430 and 2005 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

DTC REFERENCE

Terms	Meaning
Physical address	Three-digit code (shown in hexadecimal) which is given to each component comprising the AVC-LAN. Corresponding to the function, individual symbols are specified.
Logical address	Two-digit code (shown in hexadecimal) which is given to each function comprising the inner system of the AVC-LAN.

PHYSICAL ADDRESS: 110 MULTI DISPLAY

HINT:

*1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for starting an engine.
*2: It is stored when 180 sec. has passed after the power supply connector is pulled out after engine start.
*3: It may be stored when the engine key is turned again after engine start.
*4: It may be stored when the engine key is turned 1 min. again after engine start.

Logical address: 01 (Communication control)

Fig 1: Diagnosis Trouble Code Chart - (Communication Control)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Logical address: 21 (Switch)

Fig 2: Diagnosis Trouble Code Chart - (Switch)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Logical address: 34 (Front passenger monitor)

DTC

DTC	Diagnosis item	diagnosis content	Countermeasure and inspected parts
10	Error in Picture Circuit	Error in power supply system for picture circuit (abnormal voltage) is detected.	Replace multi-display assembly.
11	Back-light Error (No current)	Decline in power output from inverter circuit for back-light.	Replace multi-display assembly.
12	Back-light Error (Excess current)	Excess power output from inverter circuit for back-light.	Replace multi-display assembly.

PHYSICAL ADDRESS: 190 RADIO RECEIVER ASSEMBLY ASSEMBLY

HINT:

*1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for starting an engine.
*2: It is stored when 180 sec. has passed after the power supply connector is pulled out after engine start.
*3: It may be stored when the engine key is turned 1 min. again after engine start.
*4: It may be stored when the engine key is turned again after engine start.
*5: When 210 sec. has passed after pulling out the power supply connector of the master component with the ignition switch in ACC or ON, this code is stored.

Logical address: 01 (Communication control)

Fig 3: Diagnosis Trouble Code Chart - (Communication Control)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Logical address: 61 (Cassette switch)

Fig 4: Diagnosis Trouble Code Chart - (Cassette Switch)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Logical address: 60 (Radio receiver assembly)

DTC

DTC	Diagnosis item	diagnosis content	Countermeasure and inspected parts
43	AM Tuner Error	Abnormal condition is detected in AM tuner Inspect radio receiver assembly	Replace radio receiver assembly.
44	FM Tuner Error	Abnormal condition is detected in FM tuner Inspect radio receiver assembly	Replace radio receiver assembly.

PHYSICAL ADDRESS: 178 NAVIGATION ECU
HINT:
- *1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for starting an engine.
- *2: When 210 sec. has passed after pulling out the power supply connector of the master component with the ignition switch in ACC or ON, this code is stored.
- *3: It may be stored when the engine key is turned 1 min. again after engine start.
- *4: It may be stored when the engine key is turned again after engine start.
1. Logical address: 01 (Communication control)
  
  Fig 5: Diagnosis Trouble Code Chart - (Communication Control)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Logical address: 58 (Navigation ECU)
  
  Fig 6: Diagnosis Trouble Code Chart - (Navigation ECU)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
PHYSICAL ADDRESS: 440 STEREO COMPONENT AMPLIFIER
HINT:
- *1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for starting an engine.
- *2: It may be stored when the engine key is turned 1 min. again after engine start.
- *3: It may be stored when the engine key is turned again after engine start.
- *4: When 210 sec. has passed after pulling out the power supply connector of the master component with the ignition switch in ACC or ON, this code is stored.
  Logical address: 01 (Communication control)
  
  Fig 7: Diagnosis Trouble Code Chart - (Communication Control)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

PHYSICAL ADDRESS: 240 CD AUTO CHANGER

HINT:

*1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for starting an engine.
*2: It may be stored when the engine key is turned 1 min. again after engine start.
*3: It may be stored when the engine key is turned again after engine start.
*4: It may be stored when the engine key is turned again after engine start.
*5: When 210 sec. has passed after pulling out the power supply connector of the master component with the ignition switch in ACC or ON, this code is stored.

Logical address: 01 (Communication control)

Fig 8: Diagnosis Trouble Code Chart - (Communication Control)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Logical address: 63 (CD auto changer)

DTC

42	No Disc Readout	Disc can not be read.	Inspect CD
44	CD Error	Error is detected in CD auto changer	Replace CD auto changer
45	EJECT Error	Magazine cannot be ejected	Replace CD auto changer
46	Scratched/ Reversed Disc	Scratches or dirt is found on CD surface or CD is set upside down.	Inspect CD
47	CD Auto Changer Temp. Too High	Readout cannot be done because temperature around player's pick-up (reading part) is too high.	With IG switch OFF, leave vehicle in cool shaded place for a while and recheck. After deleting the DTC memory, if same code detected, replace CD auto changer.
48	CD Auto Changer Excess Current	Excess current is applied CD auto changer	Replace CD auto changer