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OSPREY- Application
DTC Troubleshooting Data
Version: 4.0
Date: 10-02-2017
Prepared by: Mithipati Prasad
Checked by: G S Raju / Senthilnathan S
Page: 609 of 654
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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.
Trouble Shooting:
Start
Read IVN DTCs in ECM
Is
MTO logged against IPC
in ECM in current state
?
No (In history)
1. Check continuity between ECM CAN_H to IPC CAN_H and ECM
CAN_L to IPC CAN_L in vehicle wiring side connector.
2. Check IPC ECU fuse blown.
3. Also, check IPC ECU is powered up properly. IPC Battery, IGN and
GND connected properly with IPC ECU.
Is continuity
there?
Repair the wiring harness if
continuity is not there
Clear DTC
Stop
Yes
Yes
No
U0155 Lost of communication with Instrument Panel
Cluster Module- Bus Signal/Message Failure
Check continuity between
ECM CAN_H to IPC CAN_H and ECM CAN_L
to IPC CAN_L
Check the resistance between ECM CANH
and ECM CANL of ECM connector in
vehicle wiring harness. (IPC connected on
the vehicle)
Is Resistance
R = 120 ohm
?
No
Yes