Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 694 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. B2203- 15: Combined External Mirror Folding Signal Circuit Short to Battery/ Open Overview: ISO Code (DTC Code) B2203- 15 Customer Symptom 1. Mirrors do not operate in case of open wire fault. 2. ORVMs will operate for once either in fold direction or unfold direction in case of Short to Battery fault. Fault Effects (On Vehicle) Mirror will not operate even on activation of Mirror Fold/ Unfold switch Lamp Status (If Any) NA Fault Detection Condition This fault will logged with IGN ON/ ACC/ RUN and mirror fold/ unfold operation is requested Normal Operating Condition IGN ON/ ACC/ RUN and No DTC logged. Mirrors Fold/ Unfold operation on activation of Mirror Fold/ Unfold switch. Probable Trouble Area 1. BCM connector Fault. 2. Harness issue. 3. Switch fault. 4. ECU fault. Healing Condition 1. Switch request after fault removal 2. Clear DTC command- No DTC logged Component Details: BCM drives the mirror fold/ unfold output based on the mirror fold/ unfold switch request and mirror current state i.e. folded/ unfolded Preliminary Checks: 1. Check Battery Voltage (9V-16V) 2. Check ECU pins for oxidation, bending & damage.
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