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Vehicle Platform: OSPREY
ECU Name: Hella Body Control Module (BCM) DTC
Troubleshooting Data
Version: 1.4
Date: 15 May 2018
Author: Body CoC
Page: 521 of 855
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TATA MOTORS Ltd.
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B223B - 12: Rear Washer Switch - Circuit short to Battery or Open Circuit
Overview:
ISO Code
B223B - 12
Customer Symptom
Rear Washer always OFF
Fault Effects (On Vehicle)
Rear Washer always OFF
Lamp Status (If Any)
NA
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 or open
circuit fault is detected for rear washer switch then this
DTC 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 or open circuit
3. Switch damaged or stuck
4. Combi switch connector fault.
5. BCM ECU fault
Healing Condition
1. Ignition OFF
ON
2. Clear DTC Command
Component Details:
Rear washer switch is part of combination stalk switch and interfaced to the BCM. If the IGN is on and
and if user put the combi switch to Rear Washer position, Rear washer pump will turn ON.
Preliminary Checks:
Check Battery Voltage (12.5 V & above)
Check ECU pins for oxidation, bending & damage.
Trouble Shooting:-