NEXON DIAGNOSTIC MANUAL

PSCM

DTC Troubleshooting Guide for Nexon

Version: 1.1

Date: 21/06/2017

Author: E&E Chassis - ERC

Page: 68 of 156

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:

Yes

YES

CHECK CABLE AND CONNECTOR FROM

MOTOR TO THE PSCM ECU

CONNECTOR AND

CABLE OK?

CHECK MOTOR CONNECTOR AT

ECU SIDE

IS CONNECTOR

OK?

REPLACE THE STEERING

COLUMN

YES

1. CONNECT THE TML DIAGNOSTIC TOOL.

2. TURN THE IGNITION ON.

3. CHECK THE STATUS OF DTC’s (MENORIZED/CURRENT)

4. RECORD THE DTC AND CLEAR.

5. TURN IGNITION OFF & ON.

6. READ ECU PARAMETER 6205 USING DIAGNOSTIC TOOL

A) DRIVE MOTOR A PHASE U CURRENT

B) DRIVE MOTOR A PHASE V CURRENT

C) DRIVE MOTOR A PHASE W CURRENT

7. VERIFY IF DTC C1314-01 IS PRESENT

IS DTC

PRESENT?

STOP

REPLACE THE PSCM ECU