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NEXON AMT
DTC Troubleshooting Guide
Version: 2.0
Date: 24-01-2018
Author: Suraj/Anupama
Page: 428 of 434
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