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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: 124 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.
B222C– 11: Low Beam Relay– Short to Ground
Overview:
ISO Code
B222C - 11
Customer Symptom
2. Low Beam always OFF
Fault Effects (On Vehicle)
Head lamps low beam output will not turn ON
Lamp Status (If Any)
Always OFF
Fault Detection Condition
This fault gets logged by BCM when Low Beam output is
short to ground
Normal Operating Condition
If the IGN is at ON / ACC
position and headlamps signal is
active then Low Beam shall turn ON immediately after
pressing the Low Beam switch.
Probable Trouble Area
6. BCM connector Fault
7. Front wiring harness short to ground
8. Lamp damaged
9. BCM ECU fault
10. Low Beam lamp mating connector fault
Healing Condition
3. Ignition OFF
ON
4. Clear DTC Command
Component Details:
Low Beam are located at headlamp of vehicle If the IGN is at ON / ACC
position and headlamps is active then
Low Beam shall turn ON immediately after pressing the Low Beam switch.
Preliminary Checks:
3. Check Battery Voltage (9V-16V)
4. Check ECU pins for oxidation, bending & damage.
Trouble Shooting:-