DTC U0010:88, U0498:68, 16:Er12, 26:Er81 [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR 2.0 DISI))]

id0902m1002700

DTC	U0010:88 (16:Er12)	CAN system communication error
	U0498:68 (26:Er81)
DETECTION CONDITION		Warning •  Perform the following on-board diagnosis according to FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR 2.0 DISI))] troubleshooting procedure. •  CAN system-related harness malfunction •  CAN system-related module malfunction
POSSIBLE CAUSE		•  Open or short circuit in wiring harness •  Malfunction of connectors between information display, audio unit or car-navigation unit, climate control unit, Bluetooth unit and instrument cluster •  Information display malfunction •  Audio unit or car-navigation unit malfunction •  Climate control unit malfunction •  Bluetooth unit malfunction •  Instrument cluster malfunction

Diagnostic procedure

Caution

•  When disconnecting the connector, verify that there is no looseness, damage, deformation, corrosion, or poor connection of the connector terminals.

Step	Inspection		Action
1	VERIFICATION BEFORE SERVICING •  Are any DTCs, except the following, displayed? ―  U0010:88 ―  U0498:68 ―  16:Er12 ―  26:Er81	Yes	Determine the open circuit location referring to DETERMINING MALFUNCTIONING PART (MS-CAN) [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR 2.0 DISI))].
		No	Go to the next step.
2	INSPECTION OF CONTROL MODULE CONNECTOR OUTPUTTING DTCs •  Inspect the terminal condition of the control module connector outputting DTCs and the mid-connector. •  Are the connector terminals normal without damage, deformation, corrosion, or disconnection?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to Step 9.
3	INSPECTION OF POWER SUPPLY OF CONTROL MODULE OUTPUTTING DTCs •  Refer to the terminal voltage table of the control module outputting DTCs to inspect the terminal voltage and fuse condition. •  Is the power supply voltage normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to Step 9.
4	INSPECTION OF BODY GROUND CONDITION OF CONTROL MODULE OUTPUTTING DTCs •  Inspect the body ground wires and ground point of the control module outputting DTCs. •  Are the ground and ground point normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to Step 9.
5	CAN SYSTEM RELATED WIRING HARNESS INSPECTION •  CAN system related wiring harness inspection: ―  Short to ground ―  Short to power supply ―  Short between twisted pair wiring harness ―  Open circuit •  Is the wiring harness normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to Step 9.
6	INSPECT INFORMATION DISPLAYv •  Disconnect the information display connector. •  Measure the resistance between the following information display connector terminals: ―  Between terminal J and terminal L (part side) •  Is the resistance 118—130 ohms?	Yes	Go to the next step.
		No	Replace the information display, then go to Step 9. (See INFORMATION DISPLAY REMOVAL/INSTALLATION.)
7	INSPECT INSTRUMENT CLUSTER •  Disconnect the instrument cluster connector. •  Measure the resistance between the following instrument cluster connector terminals: ―  Between terminal 2T and terminal 2S (part side) •  Is the resistance 118—130 ohms?	Yes	Go to the next step.
		No	Replace the instrument cluster, then go to Step 9. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
8	CAN RELATED MODULE VERIFICATION •  Remove only one of the CAN-related modules. •  Clear DTCs. •  Inspect the DTCs of all modules. •  Are DTCs U0010:88, U0498:68, 16:Er12, 26:Er81 displayed?	Yes	Reinstall the removed module, remove another module and perform the same inspection. Inspect all of the CAN-related modules using the same procedure. After inspecting all of the modules, go to the next step.
		No	Replace the removed module.
9	AFTER REPAIR VERIFICATION •  Connect all of the modules. •  Clear DTCs. •  Inspect the DTCs. •  Are DTCs displayed?	Yes	Perform the CAN system on-board diagnosis again according to the troubleshooting procedure (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D. (MZR 2.0 DISI))].)
		No	DTC troubleshooting completed.