Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2012 Lexus GX 460. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the information in the DTC chart. Inspect fuses and relays before investigating the trouble areas shown in the table below.

REAR VIEW MONITOR SYSTEM (W/ SIDE MONITOR SYSTEM)

DTC Code	Detection Item	Trouble Area	Refer to
C1611	ECU Malfunction	Parking assist ECU	Refer to DTC C1611: ECU Malfunction
C1612	IG Voltage is Low or High	- Harness or connector - Parking assist ECU	Refer to DTC C1612: IG Voltage is Low or High
C1613	ACC Voltage is Low or High	- Harness or connector - Parking assist ECU	Refer to DTC C1613: ACC Voltage is Low or High
C1621	Back Camera Power Supply Failure	- Harness or connector - Rear television camera assembly - Parking assist ECU	Refer to DTC C1621: Back Camera Power Supply Failure; DTC C1622: Open or Short Circuit in Back Camera Signal
C1622	Open or Short Circuit in Back Camera Signal	- Harness or connector - Rear television camera assembly - Parking assist ECU	Refer to DTC C1621: Back Camera Power Supply Failure; DTC C1622: Open or Short Circuit in Back Camera Signal
C168B	AVC-LAN Communication Malfunction	AVC-LAN communication	Refer to DTC C168B: AVC-LAN Communication Malfunction; DTC C168C: AVC-LAN Command Time Out
C168C	AVC-LAN Command Time Out	AVC-LAN communication	Refer to DTC C168B: AVC-LAN Communication Malfunction; DTC C168C: AVC-LAN Command Time Out
C168D	Vehicle Information Unmatched	Parking assist ECU	Refer to DTC C168D: Vehicle Information Unmatched
U0073	Control Module Communication Bus Off	CAN communication system	Refer to DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Main Body ECU; DTC U1114: Lost Communication with Main Switch Module
U0100	Lost Communication with ECM	CAN communication system	Refer to DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Main Body ECU; DTC U1114: Lost Communication with Main Switch Module
U0129	Lost Communication with Brake System Control Module	CAN communication system	Refer to DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Main Body ECU; DTC U1114: Lost Communication with Main Switch Module
U0140	Lost Communication with Main Body ECU	CAN communication system	Refer to DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Main Body ECU; DTC U1114: Lost Communication with Main Switch Module
U1114	Lost Communication with Main Switch Module	CAN communication system	Refer to DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Main Body ECU; DTC U1114: Lost Communication with Main Switch Module