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Nexon Gasoline – EMS ECU Bosch
DTC Troubleshooting Manual
Version: 0.1
Date: 26-08-2017
Prepared By: Sunu S Babu/Yogesh Jadhav
Checked By: Yeshwant Jadhav
Approved By: Satish Kumar
Document Part No: 2921 02 224 A1736
Page: 618 of 1203
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.
Connector View & Information: -
Component details:
The canister purge valve (cpv) meters the gas flow which is generated during regeneration of the activated carbon
filter, utilized for fuel tank ventilation. The CPV is triggered by impulses. Duration and frequency are adjusted by EMS
ECU depending on the load condition of the engine.
Flow Point Characteristics:
Stand alone Diagnosis:
Measure the resistance across the Purge valve terminals at room temperature; it should be 16+/- 2 Ohms.