2205 / 4910
Vehicle Platform: OSPREY
ECU Name: Hella Body Control Module (BCM) DTC
Troubleshooting Data
Version: 1.4
Date: 15 May 2018
Author: Body CoC
Page: 125 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.
C0040 – 12: Brake Pedal Switch - Circuit short to Battery
Overview:
ISO Code (DTC Code)
C0040 - 12
Customer Symptom
1. Brake lamps always ON
Fault Effects (On Vehicle)
1. Brake lamps always ON
2. Battery Drain
Lamp Status (If Any)
Always ON
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 Brake lamp selection switch then this DTC
code 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
3. Switch damaged or stuck
4. BCM ECU fault
5. Brake selection switch side connector fault.
Healing Condition
1. Ignition OFF
ON
2. Clear DTC Command
Component Details:
Brake Pedal Switch is operate manually. If the IGN is KeyIN/ Accessory/Keyout/ON/Run and user
presses the Brake, Brake lamps will be turned ON.
Preliminary Checks:
1. Check Battery Voltage (9V-16V)
2. Check ECU pins for oxidation, bending & damage.
Trouble Shooting:-