Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 607 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- 12: Wiper On/Off Relay Short to BATT Overview: ISO Code (DTC Code) B2258- 12 Customer Symptom Front Wiper is always OFF even though not requested through switch. Fault Effects (On Vehicle) 1. Wiper motor is always OFF. Lamp Status (If Any) NA Fault Detection Condition This fault will logged with IGN ON and user operates combi switch to wiper low speed position. Normal Operating Condition IGN ON and front wiper operates 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 BATT the relay will be continuously OFF even though user requests wiper ON. Preliminary Checks: 1. Check Battery Voltage (9V-16V) 2. Check ECU pins for oxidation, bending & damage. Trouble Shooting:-
RkJQdWJsaXNoZXIy MTIwNTUz