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Vehicle Platform: OSPREY

ECU Name: Hella Body Control Module (BCM) DTC

Troubleshooting Data

Version: 1.4

Date: 15 May 2018

Author: Body CoC

Page: 604 of 855

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.

B2258- 14: Wiper On/Off Relay Short to Ground/ Open

Overview:

ISO Code (DTC Code)

B2258- 14

Customer Symptom

Front Wiper is always ON even though not requested

through switch.

Fault Effects (On Vehicle)

1. Wiper motor is always ON.

Lamp Status (If Any)

NA

Fault Detection Condition

This fault will logged with IGN ON

Normal Operating Condition

IGN ON and No DTC logged. Front wiper operates only

when requested through switch.

Probable Trouble Area

1. BCM connector Fault.

2. Front harness Short to Ground.

3. Relay fault.

4. ECU fault.

Healing Condition

1. Switch request after fault removal

2. Clear DTC command- No DTC logged

Component Details:

BCM drives the wiper motor through this relay by providing GND to the relay coil. Hence in case this output is

shorted to GND the relay will be continuously ON even though user doesn’t request.

Preliminary Checks:

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

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

Trouble Shooting:-