Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 521 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. B223B - 12: Rear Washer Switch - Circuit short to Battery or Open Circuit Overview: ISO Code B223B - 12 Customer Symptom Rear Washer always OFF Fault Effects (On Vehicle) Rear Washer always OFF Lamp Status (If Any) NA 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 rear washer switch then this DTC 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. Cockpit harness Short to battery or open circuit 3. Switch damaged or stuck 4. Combi switch connector fault. 5. BCM ECU fault Healing Condition 1. Ignition OFF ON 2. Clear DTC Command Component Details: Rear washer switch is part of combination stalk switch and interfaced to the BCM. If the IGN is on and and if user put the combi switch to Rear Washer position, Rear washer pump will turn ON. Preliminary Checks: Check Battery Voltage (12.5 V & above) Check ECU pins for oxidation, bending & damage. Trouble Shooting:-
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