3241 / 4910
X2 Eagle
ESP DTC Troubleshooting Data
Version: 1.0
Date: 23-Oct-15
Author: ERC, Chassis E&E CoC
Page: 208 of 224
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TATA MOTORS Ltd.
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U161D - 81:- Invalid Data Received From Yaw rate Sensor Module
Overview:
ISO Code
U161D - 81
Customer Symptom
Warning Light Displayed
Fault Effects (On Vehicle)
EBD & ABS – Available, ESP – Depends on fault type,
Lamp Status (If Any)
ABS – OFF, EBD – OFF, ESP – Depends on fault type
Fault Detection Condition
Incorrect data received from SAS
Normal Operating Condition
YRS sends correct data in normal condition.
Probable Trouble Area
YRS
Healing Condition
After rectifying all the functional failures in YRS
Preliminary Check:
1.
Check resistance in Diagnostic CAN pin no. 6 and 14. It should be 120 Ω.
2.
Check for short conditions between CAN_H (pin no. 26)-CAN_L (pin no. 14), CAN_H (pin no. 26)-GND (pin no. 13),
CAN_L (pin no. 14)-GND (pin no. 13), CAN_H (pin no. 26)-Vbatt (pin no. 1) and CAN_L (pin no. 14)-GND (pin no. 13).
There should not be any short circuit conditions.
3.
Check continuity between IPC CAN_H (pin no. 8) vehicle side connector to OBD connector CAN_H (pin no. 6) and
CAN_L (pin no. 7) vehicle side connector to ODB connector (pin no.14)
4.
Read IVN DTCs in ABS/ESP in IGN ON condition
Note: After rectification please give Ignition latch to heal the DTC.