Physical Address: 178 Navigation Ecu

WARNING: This page is about a different car, the 2003 Lexus GS 430 and 2003 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

HINT: See footnotes in table.

Logical address: 01 (Communication control)

LOGICAL ADDRESS - 01 (COMMUNICATION CONTROL)

DTC

Diagnosis item

Diagnosis content

Countermeasure and inspected parts

D6 ⁽¹⁾

Absence of Master

Component in which this code is recorded has been disconnected from system with ignition in ACC or ON. Or, when this code was recorded, multi-display assembly was disconnected.

Check harness for power supply system of multi-display.
Check harness for communication system of multi-display.
Check harness for power supply system of navigation ECU.
Check harness for communication system of navigation ECU.

D7 ⁽²⁾

Communication Check Error

Component in which this code is recorded has been disconnected from system after engine start. Or, when this code was recorded, multi-display assembly was disconnected. D6

Check harness for power supply system of multi-display.
Check harness for communication system of multi-display.
Check harness for power supply system of navigation ECU.
Check harness for communication system of navigation ECU.

DC ⁽³⁾

Transmission Error

Transmission to component shown by auxiliary code has been failed. (This code does not necessarily mean actual failure.)

If same auxiliary code is recorded in other component(s), check harness for power supply and communication system of all components shown by code.

DD ⁽⁴⁾

Master Reset (Momentary Interruption)

Component that is to be master has been disconnected after engine start.

Check harness for power supply system of multi-display assembly.
Check harness for communication system of multi-display assembly.
If error occurs frequently, replace multi-display assembly.

DF ⁽⁴⁾

Master Error

Due to defective condition of component with a display, master function is switched to audio equipment. Error occurs in communication between sub-master (audio) and master component.

Check harness for power supply of multi-display (CRT display) display.
Check harness for communication system of multi-display (CRT display) display.
Check harness for communication system between multi-display (CRT display) display and radio and player.

E0 ⁽¹⁾

Registration Completion Instruction Error

"Registration Completion Instruction" command from master cannot be received.

Since this DTC is provided for engineering, it may be detected when no actual failure exists.

ON/OFF Instruction Parameter Error

Error is detected in ON/OFF control command from multi-display assembly.

Replace multi-display assembly.

E3 ⁽¹⁾

Registration Request Transmission

Registration Request command is output from slave component.
Registration Request command is output from sub-master component.

Since this DTC is provided for engineering, it may be detected when no actual failure exists.

E4 ⁽¹⁾

Multiple Frame Abort

Multiple frame transmission is aborted.

Since this DTC is provided for engineering purpose, it may be detected when no actual failure exists.

⁽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.

Logical address: 58 (Navigation ECU)

LOGICAL ADDRESS - 58 (NAVIGATION ECU)

DTC	Diagnosis item	Diagnosis content	Countermeasure and inspected parts
10	Gyro Error	Error in gyro sensor is detected. (Abnormal value in voltage output from sensor is detected for more than specified time.)	Replace navigation ECU.
11	GPS Receiver Error	Operation error of GPS receiver is detected.	At an outdoor site with a clear view, operate to display GPS data. If GPS mark is not properly displayed after 15 min. or more, replace navigation ECU.
40	GPS Antenna Error	Open condition of GPS antenna is detected. (Open circuit, connection failure of connectors, etc.)	Inspect antenna and replace if necessary.
41	Power Supply Error of GPS Antenna	Abnormal voltage of GPS antenna cable or short circuit is detected.	Inspect GPS antenna and replace if necessary. (When no continuity is identified between connector's core and sealed part, GPS antenna is normal.) If GPS antenna is normal, replace navigation ECU.
42	Map Disc Error	Data cannot be read for a certain time due to scratches or dirt on disc surface or insertion of disc.	Inspect disc and replace if necessary. (Visually check disc surface and wipe it with soft cloth.)
43	Vehicle Signal Error	Input error of vehicle signal is detected. (When no vehicle signal has been input for a certain time.)	Inspect wire harness. If wire harness is normal, replace navigation ECU.