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TML Park Distance Controller (PDC) ECU DTC
Troubleshooting guide for Nexon
Version: 0.2
Date: 08Jun17
Author:
Ravi Teja
Page: 30 of 123
Copyright ©
TATA MOTORS Ltd.
This document must not be used in any way, such as copying and redistributing to third parties, without the consent of
author.
B1929 – 23: Proximity Sensor Rear RH Failure – Signal Stuck to Low
Overview:
Write up for sensor:-
Rear Right Sensor – This sensor is placed on right side of rear bumper. In park assist function,
sensor sends the obstacle audio and visual zone information to the Head Unit.
Pre-Check Points:
NO
Trouble Shooting:-
Below given flowcharts guides to troubleshoot the fault:
ISO Code
9929 - 23
Customer Symptom
When user activates Park assist using Reverse
gear/PDC Fascia Switch/HU, Park assist functionality
will not be available and “critical fault” Screen will be
displayed on HU.
Fault Effects (On Vehicle)
Park Assist functionality will not available to the user.
Lamp Status (If Any)
No
Fault Detection Condition
1. When user activates Park assist using
Reverse gear/PDC Fascia Switch/HU, Park
assist functionality will not be available and
critical fault will be displayed on HU.
2. This DTC gets logged when rear right sensor
signal is stuck to low.
Normal Operating Condition
When user activates park assist, sensor sends the
obstacle audio and visual zone information to the
Head Unit.
Probable Trouble Area
x
PDC ECU side Connector
x
Sensor side connectors
x
Wiring harness between PDC ECU and
sensor.
Healing Condition
None