INFORMATION DISPLAY INPUT/OUTPUT CHECK MODE

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Note

•  In this mode, it is possible to verify the items in the following chart.

Check Code Table

Check code	Check item	Related items
01	Information display	CAN system •  DTC U2516: CAN system communication error
02	•  Audio unit •  Climate control unit •  Instrument cluster	CAN system •  DTCU0184: Communication error to audio unit •  DTCU0166: Communication error to climate control unit •  DTCU0181: Communication error to instrument cluster
04	TNS relay	•  TNS relay •  TNS signal wiring harness
—	LCD	LCD

Note

•  The check codes are displayed in numerical order. (While performing the inspection, if you want to inspect a check code with a number smaller than the code number you are currently inspecting, terminate the check mode then repeat the inspection from the beginning.)

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Check Code Inspection

Check code 01

Check code 01	CAN system
INSPECTION CONDITION		DISPLAY	ACTION
Select the check code 01.			CAN system of information display is normal.
			CAN system communication error. (DTC U2516) (See DTC TABLE[MULTIPLEX COMMUNICATION SYSTEM])

Check code 02

Check code 02	•  Communication status to audio unit •  Communication status to climate control unit •  Communication status to instrument cluster
INSPECTION CONDITION		DISPLAY		ACTION
Select the check code 02. (The diagnostic results will be displayed once each in the order of audio unit, heater control unit, and instrument cluster.)				All communications are normal.
		Audio unit		Communication to audio unit is normal.
				Communication error to audio unit. (DTC U0184) (See DTC TABLE[MULTIPLEX COMMUNICATION SYSTEM])
				Vehicle without audio unit.
		Climate control unit		Communication to climate control unit is normal.
				Communication error to climate control unit. (DTC U0166) (See DTC TABLE[MULTIPLEX COMMUNICATION SYSTEM])
		Instrument cluster		Communication to instrument cluster is normal.
				Communication error to instrument cluster. (DTC U0181) (See DTC TABLE[MULTIPLEX COMMUNICATION SYSTEM])

Check code 04

Check code 04		TNS relay ON/OFF signal
STEP	INSPECTION CONDITION		DISPLAY	ACTION
1	Turn the headlight switch to the TNS position. (TNS relay ON)			Go to the next step.
				Verify that the voltage of information display terminal C is B+. •  If the voltage is as specified, replace the information display. •  If the voltage is not as specified, inspect the following parts: ―  TNS relay ―  Wiring harness (Battery—TNS relay—information display)
2	Turn the headlight switch off. (TNS relay OFF)			Verify that the voltage of the information display terminal C is 1.0 V or less. •   If the voltage is as specified, replace the information display. •  If the voltage is not as specified, inspect the following parts: ―  TNS relay ―  Wiring harness (TNS relay—information display)
				Input signal to the information display is normal.

LCD

Check code —	LCD
DISPLAY		ACTION
		All segments and dots illuminated.	LCD is normal.
		Except above	Replace the information display.