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PSCM
DTC Troubleshooting Guide for Nexon
Version: 1.1
Date: 21/06/2017
Author: E&E Chassis - ERC
Page: 31 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:
1. For Active DTC: 2. For Passive DTC:
No
Yes
No
Yes
Is Active DTC
Present?
1.
Connect the TML Diagnostic Tool.
2.
Turn the ignition ON.
3.
If the status of DTC’s Active (Current)
4.
Record the DTC & Clear.
5.
Turn Ignition OFF & ON
6.
Verify if DTC U1006-49 is present
Is Active DTC
Present?
Stop
Reset the PSCM ECU. (Remove the
PSCM ECU power supply (Battery))
connector from ECU wiring harness side,
Reconnect after about 5 minuets
1. Clear the DTC from memory.
2. Turn the ignition switch off and again
turn it on without cranking the vehicle.
3. Check for the DTCs.
Replace
the ECU
Stop
No
No
1. Connect the TML Diagnostic Tool.
2. Turn the ignition ON.
3. If the status of DTC’s Passive(Memorized)
4. Record the DTC & Clear.
5. Turn Ignition OFF & ON
6. Verify if DTC U1006-49 is present
Is Passive
DTC Present?
Stop
Reset the PSCM ECU. (Remove the PSCM ECU
power supply (Battery)) connector from ECU wiring
harness side, reconnect after about 5 minutes.
1.
Clear the DTC from memory.
2.
Turn the ignition switch off and again turn it
on without cranking the vehicle.
3.
Check for the DTCs.
Yes
Stop
Is Passive
DTC
Yes