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Author: Balaji / Amar /
Nitin / Umapathi /
Deepak
Page: 54 of 138
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.
B1937 - 31:- Acknowledgement missing from VICM for Learning
Overview:-
ISO Code
B1937 -31
Customer Symptom
N/A
Fault Effects (On Vehicle)
N/A
Lamp Status (If Any)
N/A
Fault Detection Condition
N/A
Normal Operating Condition
IC shall communicate with the VICM for Odo learning After
ignition On & after ignition Off.
Probable Trouble Area
Related wiring Harness, connector or terminals damaged
IPC connector wired wrong,
Harness wire shorted.
VICM proper working.
Healing Condition
Clearing the Fault. Ignition On/Off
Component Details:-
N/A
Preliminary Checks:-
3. Check Battery Voltage is normal in the range (9v - 16v)
4. Check CAN i/p lines between IPC & VICM for Pinch/Cut.
5. Check ECU & CAN signal pin for oxidation, bending & damage.
6. Check CAN signal at Pin no. J1-5 & J1-6 of the ECU connector.