HARRIER BOOK 2

Vehicle Platform: OSPREY

ECU Name: Hella Body Control Module (BCM) DTC

Troubleshooting Data

Version: 1.4

Date: 15 May 2018

Author: Body CoC

Page: 374 of 855

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.

B1306 - 11: Left Rear Door Ajar Switch - Circuit Short to Ground

Overview:

ISO Code (DTC Code)

B1306 - 11

Customer Symptom

1. The IC shows Rear Left door as open status,

even if the Rear Left door is closed as presumed

by the customer.

2. Interior Roof lamp in Auto mode selection will

ON for 10 minutes.

3. The Mis-lock sound occurs on RKE lock

command.

Fault Effects (On Vehicle)

1. Unnecessary battery power consumption

(because Interior Roof lamp in Auto mode

selection will always ON for 10 minutes.)

2. The vehicle will not enter into arm state, when

RKE lock is given and no alarm functionality will

work.

Lamp Status (If Any)

1. Interior Roof lamp in Auto mode selection will

ON for 10 minutes.

2. Rear Left door telltale status on IC shows always

ON.

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 ground fault is

detected for Left Rear Door Ajar 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. Left side wiring harness short to ground

3. Left Rear Door Ajar Switch is damaged or stuck

or faulty

4. BCM ECU fault

Healing Condition

1. Ignition OFF



2. Clear DTC Command

Component Details:

Rear Left door Switch, BCM connector

Functionality:

If the Rear Left door Switch is Short to Ground, then the Rear Left door state is in opened/ ajar state.

If the Rear Left door is opened, then BCM shall receive the feedback of Rear Left door as open/ ajar

status.

Preliminary Checks:

1. Check Battery Voltage (9V-16V)

2. Check ECU pins for oxidation, bending & damage.