Vehicle Platform: Tiago,Tigor & Osprey ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 2.0 Date: 22-10-2018 Author: Parag K Page: 513 of 737 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. B220C – 23: Front Washer Switch – Signal Stuck Low Overview: ISO Code B220C - 23 Customer Symptom Front Washer pump does not operate. Fault Effects (On Vehicle) Front Washer Pump will not come ON Lamp Status (If Any) NA Fault Detection Condition This fault gets logged by BCM; if signal stuck low condition is detected for front washer switch. Normal Operating Condition If the IGN is ON then front wash pump shall turn ON immediately after pressing the front washer switch. Probable Trouble Area 1. BCM connector Fault 2. Cockpit Front washer switch input wire Short to ground 3. Switch damaged or stuck 4. BCM ECU fault Healing Condition 1. Ignition OFF ON 2. Operate front washer switch from OffOnOff 3. Clear DTC Command Component Details: Front Washer switch is part of Combi switch. If the IGN is ON and user presses the front washer switch, front washer pump will turn ON. Preliminary Checks: 1. Check Battery Voltage (12.5 V & above) 2. Check ECU pins for oxidation, bending & damage. Trouble Shooting:-
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