Diagnosis System [08/2013 - ]
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
- DESCRIPTION
- Air conditioning system data and the Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform troubleshooting.
- CHECK DLC3
- Check the DLC3. Refer to GENERAL INFORMATION [08/2013 - ] .
- LIST OF OPERATION METHODS
- By operating each of the air conditioning control switches as shown in the diagram below, it is possible to enter diagnostic check mode.
- INDICATOR CHECK
- Turn the power switch off.
- Turn the power switch on (ACC) and wait at least 5 seconds.
- Turn the power switch on (IG) while pressing the air conditioning panel "AUTO" switch and "Recirculation/Fresh" switch simultaneously. Hold both switches until the indicator check screen appears.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*1 Multi-media Module Receiver Assembly (w/ Navigation System) *2 Multi-media Module Receiver Assembly (w/ Audio and Visual System (w/ Multi-display with Parking Assist Monitor System)) *3 Radio Receiver Assembly (w/ Audio and Visual System (w/o Multi-display)) *4 Radio Receiver Assembly (w/ Audio and Visual System (w/ Multi-display without Parking Assist Monitor System)) - The indicator check is automatically performed when panel diagnosis is activated. Check that the indicators light up and go off 4 times at 1 second intervals continuously.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
- The sensor check automatically starts when the indicator check is completed.
- Press the "OFF" switch to cancel check mode.
TEXT IN ILLUSTRATION*1 Multi-display Assembly (w/ Audio and Visual System (w/ Multi-display with Parking Assist Monitor System)) *2 Multi-display Assembly (w/ Navigation System) *3 Accessory Meter Assembly (w/ Audio and Visual System (w/o Multi-display)) *4 Multi-display Assembly (w/ Multi-display without parking Assist Monitor System) *5 Multi-media Module Receiver Assembly (w/ Audio and Visual System (w/ Multi-display with Parking Assist Monitor System)) *6 Multi-media Module Receiver Assembly (w/ Navigation System) *7 Radio Receiver Assembly (w/ Audio and Visual System (w/o Multi-display)) *8 Radio Receiver Assembly (w/ Audio and Visual System (w/ Multi-display without Parking Assist Monitor System)) *a Indicator Blinking Pattern *b ON *c OFF *d 1 Sec.
- SENSOR CHECK (DTC CHECK)
- Start the hybrid system and warm it up.
- Perform the indicator check.
HINT:
After the indicator check is completed, the system enters DTC check mode automatically.
- Read the DTCs displayed on the display.
NOTE:
In sensor check mode, which is automatically entered after indicator check mode, troubleshooting may be partially performed. Be sure to perform the sensor check again.
HINT:
Refer to Diagnostic Trouble Code Chart for details of the codes. Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ] .
- When there are no problems, DTC 00 is output.
- As an example, the illustration shows that DTC 12 is output.
TEXT IN ILLUSTRATION*1 Multi-display Assembly (w/ Audio and Visual System (w/ Multi-display with Parking Assist Monitor System)) *2 Multi-display Assembly (w/ Navigation System) *3 Accessory Meter Assembly (w/ Audio and Visual System (w/o Multi-display)) *4 Multi-display Assembly (w/ Multi-display without parking Assist Monitor System) *5 Multi-media Module Receiver Assembly (w/ Audio and Visual System (w/ Multi-display with Parking Assist Monitor System)) *6 Multi-media Module Receiver Assembly (w/ Navigation System) *7 Radio Receiver Assembly (w/ Audio and Visual System (w/ Multi-display without Parking Assist Monitor System)) *8 Diagnostic Trouble Code (DTC) - If the steps are difficult to read because they change automatically, press the "driver side TEMP UP" switch to display the steps one at a time so that they can be read easily. The items are displayed step by step each time the "driver side TEMP UP" switch is pressed.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
Press the "OFF" switch to finish panel diagnosis.
TEXT IN ILLUSTRATION*1 Multi-media Module Receiver Assembly (w/ Navigation System) *2 Multi-media Module Receiver Assembly (w/ Audio and Visual System (w/ Multi-display with Parking Assist Monitor System)) *3 Radio Receiver Assembly (w/ Audio and Visual System (w/o Multi-display)) *4 Radio Receiver Assembly (w/ Audio and Visual System (w/ Multi-display without Parking Assist Monitor System)) - Clear DTCs
- During the sensor check, press the "FRONT DEF" switch and "REAR DEF" switch simultaneously.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*1 Multi-media Module Receiver Assembly (w/ Navigation System) *2 Multi-media Module Receiver Assembly (w/ Audio and Visual System (w/ Multi-display with Parking Assist Monitor System)) *3 Radio Receiver Assembly (w/ Audio and Visual System (w/o Multi-display)) *4 Radio Receiver Assembly (w/ Audio and Visual System (w/ Multi-display without Parking Assist Monitor System))
- During the sensor check, press the "FRONT DEF" switch and "REAR DEF" switch simultaneously.