HARRIER BOOK 2

X2 Eagle

ESP DTC Troubleshooting Data

Version: 1.0

Date: 23-Oct-15

Author: ERC, Chassis E&E CoC

Page: 184 of 224

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.

U0155 - 08:- Lost Communication With Instrument Panel Cluster (IPC) Control Module

Overview:

ISO Code

U0155-08

Customer Symptom

None

Fault Effects (On Vehicle)

ABS, EBD & ESP – Available

Lamp Status (If Any)

ABS – OFF, EBD – OFF, ESP – OFF

Fault Detection Condition

1. IPC connector is not connected properly or disconnected

from its location.

2. CAN wire from IPC connector side are disconnected

3. IPC IGN & Battery fuse blown.

4. CAN_H, CAN_L or both lines of IPC are open circuit

Normal Operating Condition

IPC ECU communicates properly with TML diagnostic Tool.

Probable Trouble Area

1. IPC connector / IPC fuse.

2. CAN lines of IPC ECU

Healing Condition

1. IPC ECU is connected and no wiring harness issues from

TCM side

2. CAN_H, CAN_L or/ and both lines of IPC are connected

properly

Preliminary Check:

Check resistance in Diagnostic CAN pin no. 6 and 14. It should be 120 Ω.

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.

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)

Read IVN DTCs in ABS/ESP in IGN ON condition

Note: After rectification please give Ignition latch to heal the DTC.