1994 JAGUAR XJ6 automatic transmission fluid

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Page 4 of 327

JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual Automatic Transmission (AJ16) w 
8.1.1 ZF 4HP 24 E TRANSMISSION,  SYSTEM DESCRIPTION 
The electronic  transmission  system fitted to normally  aspirated  4.0 liter  vehicles comprises the  following c

Page 7 of 327

JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual Automatic Transmission (AJ16) 
8.1.3 DIAGNOSTIC  FAULT CODES 
The following  codes are stored  within the TCM  whenever a fault is  detected  on the system.  The codes can be accessed 
using  Jaguar

Page 8 of 327

JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual Automatic Transmission (AJ16) 
8.1.4 FA U1 T DIAGNOSIS 
Transmission  Control System Electrical - P 0702 (Fig. 1) 
This fault  code  is associated  with the internal relay of the  Transmission Control

Page 9 of 327

JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual w Automatic Transmission (AJ16) 
TRANSMISSION  RANGE SENSOR - P 0705 / P 0706 
The rotary switch  is located on the  LH side  of the  transmission.  The harness incorporates  the transmission  wiring

Page 11 of 327

JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual IW Automatic Transmission (AJ16) 
TRANSMISSION  FLUID TEMPERATURE  SENSOR INPUTS P 0712 / P 0713 
The transmission  fluid temperature  sensor is a positive  temperature coefficient  thermistor bead, l

Page 15 of 327

JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual w Automatic Transmission (AJ16) 
ENGINE SPEED INPUT - P 0726 / P 0727 
The engine  speed input signal is a square wave  output from the ECM.  The signal is 12 volt  active  high with a duty cycle 
of

Page 17 of 327

JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual w Automatic Transmission (AJ16) 
SOL ENOlD VALVES 
The following  tests are performed continuously  by a background  task. If a fault  is detected, it is filtered for a set period. 
When  filtering  e

Page 19 of 327

JAGUAR XJ6 1994 2.G Electrical Diagnostic Manual Automatic Transmission (AJ16) 
TORQUE REDUCTION  SIGNAL - P 1780 
The diagnostic  for this signal is  based entirely on  feedback from the ECM. If the torque reduction  request is active  for 
greater
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