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TML Park Distance Controller (PDC) ECU DTC
Troubleshooting guide for Nexon
Version: 0.2
Date: 08Jun17
Author:
Ravi Teja
Page: 75 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.
B1920 – 12 :Proximity Sensor Power Supply Output - Short to Battery
Overview:
Write up for the system:-
Proximity Sensor- This module is used to supply proximity data of an obstacle in warning zone
with respect to rear bumper during active park assist.
Pre-Check Points:
No
ISO Code
9920-12
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 proximity sensor
power supply output is short to Battery.
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