2007 ISUZU KB P190 4wd check

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Page 4418 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7A2-134   TRANSMISSION CONTROL SYSTEM (JR405E)
TCM Signal Test 
Inspection Tool 
Use a DMM to measure voltage and circuit continuity. 
Also use an oscilloscope to measure waveform. Refer 
to the follo

Page 4437 of 6020

ISUZU KB P190 2007  Workshop Repair Manual TRANSMISSION CONTROL SYSTEM (JR405E)   7A2-153
TCM Input & Output  
TCM Voltage Description 
The TCM supplies a buffered voltage to various 
switches and sensors. The TCM can do this because
resistanc

Page 4880 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7D1-6  TRANSFER CONTROL SYSTEM 
the 4×2 - 4 ×4 shift rod. W hen moving in 4 ×2 direction, a spring 
standby mechanism is provided between the rod and sleeve so  
that the rod is positioned at the 4

Page 4881 of 6020

ISUZU KB P190 2007  Workshop Repair Manual TRANSFER CONTROL SYSTEM  7D1-7 
7B4-PDF3 
 4L indicator (in meter panel)  
This lamp indicates following items: 
Valve check 
Driving status (High-Low) 
Operating status (2Hz: Actuator in operation, m

Page 4886 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7D1-12  TRANSFER CONTROL SYSTEM 
Functions of Switch and indicator Lamp 
Transfer-related indicator lamp and switch function 
 
Item 4WD 
lamp  4L lamp  Neutral 
lamp  Check 
4WD 
warning  light  4WD

Page 4887 of 6020

ISUZU KB P190 2007  Workshop Repair Manual TRANSFER CONTROL SYSTEM  7D1-13 
Item 4WD 
lamp  4L lamp  Neutral 
lamp  Check 
4WD 
warning  light  4WD 
switch  Actu ato r 
detection  (limit) 
switches 
LS1, LS2,  LS3. and  LS4 
1 = on 
2 = off  T

Page 4888 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7D1-14  TRANSFER CONTROL SYSTEM 
2H to 4H retrial 
 
Item 4WD 
lamp  4L lamp  Neutral 
lamp  Check 
4WD 
warning  light  4WD 
switch  Actu ato r 
detection  (limit) 
switches 
LS1, LS2,  LS3. and  LS4

Page 4890 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 7D1-16  TRANSFER CONTROL SYSTEM 
Transfer-related indicator lamp and switch function 
Skip operation 
Item 4WD 
lamp  4L lamp Neutral 
lamp  Check 
4WD 
warning  light  4WD 
switch  Actu ato r 
detect
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