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PSCM
DTC Troubleshooting Guide for Nexon
Version: 1.1
Date: 21/06/2017
Author: E&E Chassis - ERC
Page: 73 of 156
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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:
A
YES
NO
CHECK CABLE AND CONNECTOR TO
THE ECU (SIGNAL AND POWER CABLES)
CONNECTOR
AND CABLE OK?
DISCONNECT PSCM ECU POWER
SUPPLY CONNECTOR. CHECK VOLTAGE
B/W PIN 1 & 2.
VOLTAGE >=
9V AND <=
16V?
REPLACE VEHILE
WIRING HARNESS
YES
NO
CHECK THE
BATTERY
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 C1314-19 IS PRESENT
IS DTC
PRESENT?
Yes
No
STOP