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Q5/X451 FATC
DTC Troubleshooting Data
Version: 1.0
Date: 16-Oct-2018
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TATA MOTORS Ltd.
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Author: ERC
Page: 172 of 202
B1F4F-02:- CCM configured as Single while CCH as Dual (Zone 3) – General signal Failure
Overview:
ISO Code
B1F4F -02
Customer Symptom
Some or all functionality may be lost
Fault Effects (On Vehicle)
Some or all functionality may be lost
Lamp Status (If Any)
CCM shall operate in its default mode:
When there is no event message for touchscreen user selection from HU, then
CCM shall set
1) AUTO ON
2) Temp - 23DegC
Other modes will behave as per the sensor values that the CCM would receive
When HU send touchscreen signal
1) User selections from HU shall be taken as valid inputs for CCM
Fault Detection Condition
CCM is configured as single Zone and CCH is configured as Dual Zone.
Normal Operating Condition
CCM is fully functional based on the User input on CCH
Probable Trouble Area
CCM is configured as single while CCH as Dual
Healing Condition
Check configuration of CCH & CCM, Connect single zone CCH.