LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2021 >> LS 500 Base, AWD >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> DTC Index (3 Of 3) >> Park Assist / Monitoring DTCS >> Parking Assist Monitor System
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Parking Assist Monitor System

PARKING ASSIST MONITOR SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [12/2017 - 10/2020]

DTC Code Description
C1611 ECU Malfunction
C1621 Back Camera Power Supply Failure
C1625 Open or Short in Steering Angle Sensor +B
C1626 Steering Angle Sensor Failure
C168D Vehicle Information Unmatched
C1691 Back Camera Initialization Incomplete
C1694 Steering Angle Initialization Incomplete
U0100 Engine ECU Communication
U0126 Steering Sensor Communication
U0140 Lost Communication with Body Control Module
U0163 Lost Communication with Navigation Control Module
U0233 Lost Communication with Blind Spot Monitor Master Module
U1000 CAN Communication Failure (Message Registry)
U1110 Lost Communication with Clearance Sonar Module
PARKING ASSIST MONITOR SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [10/2020 - 10/2022]

DTC Code Description
C1611 ECU Malfunction
C1621 Back Camera Power Supply Failure
C1625 Open or Short in Steering Angle Sensor +B
C1626 Steering Angle Sensor Failure
C168D Vehicle Information Unmatched
C1691 Back Camera Initialization Incomplete
C1694 Steering Angle Initialization Incomplete
U0100 Engine ECU Communication
U0126 Steering Sensor Communication
U0140 Lost Communication with Body Control Module
U0163 Lost Communication with Navigation Control Module
U0233 Lost Communication with Blind Spot Monitor Master Module
U1000 CAN Communication Failure (Message Registry)
U1110 Lost Communication with Clearance Sonar Module
PARKING ASSIST MONITOR SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [10/2022 - 10/2023]

DTC Code Description
C1617-04 Camera Malfunction System Internal Failure
U0100-87 Lost Communication with ECM/PCM "A" Missing Message
U0126-87 Lost Communication with Steering Angle Sensor Module Missing Message
U0129-87 Lost Communication with Brake System Control Module "A" Missing Message
U0130-87 Lost Communication with Steering Effort Control Module Missing Message
U0131-87 Lost Communication with Power Steering Control Module "A" Missing Message
U0132-87 Lost Communication with Suspension Control Module "A" Missing Message
U0140-87 Lost Communication with Body Control Module Missing Message
U0155-87 Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message
U0163-87 Lost Communication with Navigation Control Module Missing Message
U0198-87 Lost Communication with Telematic Control Module "A" Missing Message
U0233-87 Lost Communication with Side Obstacle Detection Control Module "B" Missing Message
U1110-87 Lost Communication with Intuitive Parking Assist Module Missing Message
PARKING ASSIST MONITOR SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [10/2023 - ]

DTC Code Description
C1617-04 Camera Malfunction System Internal Failure
U0100-87 Lost Communication with ECM/PCM "A" Missing Message
U0126-87 Lost Communication with Steering Angle Sensor Module Missing Message
U0129-87 Lost Communication with Brake System Control Module "A" Missing Message
U0131-87 Lost Communication with Power Steering Control Module "A" Missing Message
U0132-87 Lost Communication with Suspension Control Module "A" Missing Message
U0140-87 Lost Communication with Body Control Module Missing Message
U0155-87 Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message
U0163-87 Lost Communication with Navigation Control Module Missing Message
U0198-87 Lost Communication with Telematic Control Module "A" Missing Message
U0233-87 Lost Communication with Side Obstacle Detection Control Module "B" Missing Message
U1110-87 Lost Communication with Intuitive Parking Assist Module Missing Message
U114F-87 Lost Communication with Power Integration Module Missing Message