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Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2012 Lexus CT 200h. However, it is still accessible from the selected car via links, so may be relevant.
PARKING ASSIST MONITOR SYSTEM

DTC Code Detection Item Trouble Area See
C1611 ECU Malfunction 1. Parking assist ECU initialization (not initialized parking assist ECU)
2. Back camera position setting (initialized parking assist ECU)
3. Steering angle setting (initialized parking assist ECU)
4. Parking assist ECU		 Refer to DTC C1611: ECU Malfunction
C1612 IG Voltage is Low or High 1. Harness or connector
2. Parking assist ECU		 Refer to DTC C1612: IG Voltage is Low or High
C1613 ACC Voltage is Low or High 1. Harness or connector
2. Parking assist ECU		 Refer to DTC C1613: ACC Voltage is Low or High
C1621 Back Camera Power Supply Failure 1. Harness or connector
2. Rear television camera assembly
3. 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 1. Harness or connector
2. Rear television camera assembly
3. Parking assist ECU		 Refer to DTC C1621: Back Camera Power Supply Failure; DTC C1622: Open or Short Circuit in Back Camera Signal
C1625 Open or Short in Steering Angle Sensor +B 1. Harness or connector
2. Steering sensor (spiral with sensor cable sub-assembly)		 Refer to DTC C1625: Open or Short in Steering Angle Sensor +B
C1626 Steering Angle Sensor Failure 1. Steering sensor (spiral with sensor cable sub-assembly)
2. Parking assist ECU		 Refer to DTC C1626: Steering Angle Sensor Failure
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 1. Back camera position setting
2. Steering angle setting
3. Main body ECU
4. 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 U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U1110: Lost Communication with Clearance Sonar Module
U0126 Lost Communication with Steering Angle Sensor Module CAN communication system Refer to DTC U0073: Control Module Communication Bus Off; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U1110: Lost Communication with Clearance Sonar Module
U0129 Lost Communication with Brake System Control Module CAN communication system Refer to DTC U0073: Control Module Communication Bus Off; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U1110: Lost Communication with Clearance Sonar Module
U0140 Lost Communication with Body Control Module CAN communication system Refer to DTC U0073: Control Module Communication Bus Off; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U1110: Lost Communication with Clearance Sonar Module
U1110 Lost Communication with Clearance Sonar Module CAN communication system Refer to DTC U0073: Control Module Communication Bus Off; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U1110: Lost Communication with Clearance Sonar Module
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