NEXON AMT BS VI DTC Troubleshooting Guide Version: 2.3 Date: 23-07-2019 Author: Rahul N Page: 437 of 442 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. - TCU connection 76 P1884-02 Reverse Lamp relay –short to supply -Short circuit to Supply on harness -Short circuit to Supply on relay -Short circuit to Supply on TCU -Wiring Harness connections - Reverse lamp relay - TCU connection 77 P1884-01 Reverse Lamp relay –short to ground -Short circuit to GND on harness -Short circuit to GND on relay -Short circuit to GND on TCU -Wiring Harness connections - Reverse lamp relay - TCU connection 78 P2904-01 Clutch System – Not opening before shift -Clutch damage - actuator damage - valve damage -Clutch Electro valve -TCU - Clutch 79 P2904-02 Clutch System – Closing during Engage -Clutch damage - actuator damage - valve damage -Clutch Electro valve -TCU - Clutch 80 P2904-03 Clutch System – Overheat -Clutch slipping for a too long time -Wiring Harness Connections - Electro valve - TCU - Clutch 81 P2908-01 Clutch System – Control error -Sudden clutch closure due to clutch command failure (hydraulic or mechanical damage) -Clutch Electro valve -TCU - Clutch 82 P1905-02 Clutch System – Clutch Locked -clutch locked opened due to hydraulic or mechanical damage -Clutch Electro valve -TCU - Clutch 83 P2905-01 Gearbox System – Disengage failed -Mechanical or hydraulic problem -Gear Electro valve - TCU - Gearbox 84 P2909-01 Gearbox System – Shift failed -Mechanical or hydraulic problem -Gear Electro valve - TCU - Gearbox 85 P2905-02 Gearbox System –engage failed -Mechanical or hydraulic problem -Gear Electro valve - TCU - Gearbox 86 P2905-03 Gearbox System –unintended disengage -Mechanical or hydraulic problem -Gear Electro valve - TCU - Gearbox 87 P2909-02 Gearbox System –Shift Locked -Mechanical or hydraulic problem -Gear Electro valve - TCU - Gearbox 88 P190B-01 Gearbox System –unintended engage -Mechanical or hydraulic problem -Gear Electro valve - TCU - Gearbox 89 P190C-07 Gearbox System –Control Error -Mechanical or hydraulic problem -Gear Electro valve - TCU - Gearbox 90 P190D-01 Gearbox System –Clutch over speed -Mechanical or hydraulic problem -Gear Electro valve - TCU - Gearbox
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