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: 85 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. Exterior Light DTCs B2236 - 12: Position Lamp Switch - Circuit Short to Battery Overview: ISO Code (DTC Code) B2236 – 12 Customer Symptom Position Lamp always OFF Fault Effects (On Vehicle) Position Lamp always OFF Lamp Status (If Any) Always OFF 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 fault is detected for Position Lamp switch then this DTC code will be returned with the Routine results. Normal Operating Condition After execution of input switch test routine this DTC should not be returned with routine result. Probable Trouble Area 1. BCM connector Fault 2. Cockpit (group) wiring harness short to battery 3. Position Lamp switch/Combi switch damaged or stuck 4. BCM ECU fault 5. Combi switch switch connector fault. Healing Condition 1. Ignition OFF ON 2. Clear DTC Command Component Details: Position Lamp switch is part of combination stalk switch and interfaced to the BCM. If the IGN is KeyIN or KeyOut/Accessory/On and Headlamps are ON or Position lamp switch signal is active, Position lamp will turn ON. Preliminary Checks: 1. Check Battery Voltage (9V-16V) 2. Check ECU pins for oxidation, bending & damage. Trouble Shooting:-
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