NEXON AMT BS VI DTC Troubleshooting Guide Version: 2.3 Date: 23-07-2019 Author: Rahul N Page: 436 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. -Short circuit to supply or Open circuit on TCU connection - Electro valve damage 65 P1889-04 Shift electro valve – Open Circuit -Open circuit on valve or connection -Open circuit on TCU connection -TCU mounting problem -Valve body damage -TCU damage - Electro valve damage 66 P1889-02 Shift electro valve – Short to supply -Short circuit to supply on valve -Short circuit to supply on TCU connection -TCU mounting problem -Valve body damage -TCU damage - Electro valve damage 67 P1889-01 Shift electro valve – Short to Ground -Short circuit to GND on valve -Short circuit to GND on TCU connection -TCU mounting problem -Valve body damage -TCU damage - Electro valve damage 68 P1889-05 Shift electro valve – Short to supply/open circuit - Short circuit to Supply or open circuit on valve -Short circuit to supply or Open circuit on TCU connection -TCU mounting problem -Valve body damage -TCU damage - Electro valve damage 69 P185C-05 Hydraulic pump Supply – Open Circuit /Short to supply - open circuit or short circuit to Supply on harness - open circuit or short circuit to Supply on pump - open circuit or short circuit to Supply on TCU -Wiring Harness Connections -Electric motor connection -TCU connection 70 P185C-03 Hydraulic pump Supply –Device closed -TCU static pump driver stuck closed -Wiring Harness Connections -TCU connection 71 P185C-01 Hydraulic pump Supply –Short to ground -Short circuit to GND on Harness or Pump. -Wiring Harness Connections -Electric motor connection -TCU connection 72 P185C-07 Hydraulic pump Supply –Short to supply -Short circuit to Supply on Harness or Pump -Short circuit to Supply on Harness on TCU -Wiring Harness Connections -Electric motor connection -TCU connection 73 P081A-03 Cranking Enable –Short to ground/open circuit -Short circuit to GND or open circuit on harness -Short circuit to GND or open circuit on relay -Wiring Harness Connections -Electric motor connection -TCU connection 74 P081A-02 Cranking Enable –Short to supply -Short circuit to Supply on Harness - Short circuit to Supply on relay -Short circuit to Supply on TCU -Wiring Harness Connections -Electric motor connection -TCU connection 75 P1884-04 Reverse Lamp relay –open circuit - open circuit on harness - open circuit on relay - open circuit on TCU -Wiring Harness connections - Reverse lamp relay
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