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Vehicle Platform: OSPREY
ECU Name: Hella Body Control Module (BCM) DTC
Troubleshooting Data
Version: 1.1
Date: 03 Mar 2017
Author: Body CoC
Page: 395 of 784
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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.
B162C - 12: Tailgate State Switch - Circuit short to Battery or Open Circuit
Overview:
ISO Code
B162C - 12
Customer Symptom
1. Interior Roof lamp in Auto mode selection
doesn’t operate when Tailgate is opened.
2. The IC shows Tailgate as closed status, even if
the Tailgate is opened as presumed by the
customer.
3. The Mis-lock sound does not occurs on RKE
lock command.
4. The vehicle will get lock on RKE lock command.
Fault Effects (On Vehicle)
Interior Roof lamp in Auto mode selection does not
operate when Tailgate is opened.
Lamp Status (If Any)
1. Roof lamp in Auto mode selection is OFF.
2. IC shows Tailgate closed status always
Fault Detection Condition
This fault will be logged after the input switch test
routine execution. User has to operate the switch
manually during routine. If short to battery or open
circuit fault is detected for Tailgate State Switch, then
this DTC code will be returned with the routine results.
Normal Operating Condition
There should not be any fault returned by routine
Probable Trouble Area
1. BCM connector Fault
2. Rear side wiring harness Short to battery or
open circuit
3. Tailgate State Switch is damaged or stuck or
faulty
4. BCM ECU fault
Healing Condition
1. Ignition OFF
Æ
ON
2. Clear DTC Command
Component Details:
Tailgate State Switch, BCM connector
Functionality:
If the Tailgate State Switch is short to Battery or Open Circuit, then the Tailgate State is in closed state.
If the Tailgate State is closed, then BCM shall receive the feedback of Tailgate State as closed status.
Preliminary Checks:
1. Check Battery Voltage (12.5 V & above)
2. Check ECU pins for oxidation, bending & damage.
Trouble Shooting: