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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
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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:-