NEXON DIAGNOSTIC MANUAL

PSCM

DTC Troubleshooting Guide for Nexon

Version: 1.1

Date: 21/06/2017

Author: E&E Chassis - ERC

Page: 106 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:

1. Reset the PSCM ECU (Remove the PSCM

power supply (Battery) connector from ECU wiring

harness side, reconnect after about 5 minutes).

2. Clear the DTC from the memory

3. Turn the ignition switch off and again turn it on

without cranking the vehicle.

Is DTC

Present?

Stop

Yes

Carry out the software update (Reflash the ECU

)

1. Clear the DTC from the memory

2. Turn the ignition switch off and again turn it on

without cranking the vehicle.

3. Check for DTCs.

Is DTC

Present?

Stop

Yes

Replace the

ECU

Updated

Software

available?

Yes

Replace the

ECU

1. Connect the TML Diagnostic Tool.

2. Turn the Ignition ON

3. Check the status of DTC’s (Memorized/Current)

4. Record the DTC & Clear

5. Turn Ignition OFF & ON

6. Verify If DTC

P1327 – 00

is present

Is DTC

Present?

Yes

Stop