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PSCM
DTC Troubleshooting Guide for Nexon
Version: 1.1
Date: 21/06/2017
Author: E&E Chassis - ERC
Page: 58 of 156
Copyright ©
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:
No
Voltage >=
9V?
Yes
Disconnect the PSCM ECU power supply
(Battery) connector from wiring harness side
and check the voltage between Pin no.1 and 2
(Refer Connector View & Information)
Check the battery
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
C1318-49
is present
Is DTC
Present?
Yes
No
Stop
Is DTC
Present?
Stop
No
Yes
Replace 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
Connect the PSCM ECU power
supply (Battery) connector