Isuzu KB P190. Manual - part 1029

ON-VEHICLE SERVICE (AW30–40LE)  7A3-31 

Transmission Control Module (TCM) 

 

 

 

 

RTW37ALF001801 

Removal 

Preparation: 

Disconnect negative (–) battery cable. 

  1. Disconnect the TCM harness connectors. 

 2. 

Remove fixing nuts (2 pieces) and TCM with 
bracket from the car. 

NOTE: The TCM is fitted under instrument panel of the
driver's compartment by means of two stud bolts. 

  3. Remove fixing nuts (2 pieces) and remove TCM

from bracket. 

 
 

 

Installation 

To install, follow the removal steps in reverse order. 

 
 

 
 

7A3-32  ON-VEHICLE SERVICE (AW30–40LE) 

Shift Solenoid and Lock-Up Solenoid 

Removal 

Preparation: 

•  Disconnect negative (–) battery cable. 

•  Drain the fluid. 

Refer to ATF REPLACEMENT in this section. 

1.  Remove oil lever gage and oil filler tube. 

2. Support transfer case (4

×

4) or rear cover (4

×

2) 

with a transmission jack. 

3.  Remove engine rear mounting nuts. 

 

 

 

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4. Remove fule pipe heat protector on tansmission

corssmenber. 

5.  Remove fuel pipe from the crossmenber. 

6.  Remove transmission crossmenber. 

7.  Remove the nineteen bolts. 

8.  Remove oil pan, using seal cutter 5-8840-2153-0.

  

 

 

 

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NOTE:  Do not turn over the transmission as this will 
contaminate the valve body with foreign materials in the
bottom of the oil pan. 

Remove oil pan by lifting the transmission case. 

Oil pan seal cutter: 5-8840-2153-0 

Examine particles in oil pan 

Remove the magnet and use it to collect any steel 
chips. 

Look carefully at the chips and particles in the oil 
pan and on the magnet to anticipate what type of 
wear you will find in the transmission: 

Steel (magnetic) .................. bearing, 

gear 

and 

clutch plate wear 

Brass (non-magnetic).......... bushing wear 

 

 
 

 

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  9. Remove the oil strainer assembly. 

 

 
 

 

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ON-VEHICLE SERVICE (AW30–40LE)  7A3-33 

10.Disconnect the solenoid wiring connectors from the

shift solenoid S1(1), S2(2), lock-up solenoid(3) and
pressure control solenoid(4). 

 

 
 

 

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 11. Remove each retaining bolts and solenoids. (Except 

pressure control solenoid:) 

Pressure control solenoid cannot be removed. 

Installation 

To install, follow the removal steps in reverse order
noting the following point; 

Refer to the section Reassembly of Major
Components(2) and Transmission Removal and 
Installation. 

Torque: 

Solenoid S1, S2 bolt – 7 N

⋅m (0.7 kgf⋅⋅⋅⋅m/61 Ib⋅in) 

Lock-up solenoid bolt – 10 N

⋅m (1.0 kgf⋅⋅⋅⋅m/87 

Ib

⋅in) 

 

 

 

7A3-34  ON-VEHICLE SERVICE (AW30–40LE) 

Valve Body Assembly and Pressure Control Solenoid 

 

 
 
 
 

 

 

244RY00009 

Removal 

Preparation: 

•  Disconnect negative (–) battery cable. 

•  Drain the fluid. 

Refer to ATF REPLACEMENT in this section. 

  1. Remove the nineteen bolts and oil pan.