4JH1 ISUZU KB P190 2007 Workshop Repair Manual

ELECTRICAL-BODY AND CHASSIS 8A-115

PARTS LOCATION 4JH1-TC

















RTW 78AXF049401

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8A-138 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM 4JH1-TC (LHD) Sheet 1/2





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ELECTRICAL-BODY AND CHASSIS 8A-139

CIRCUIT DIAGRAM 4JH1-TC (LHD) Sheet 2/2






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ELECTRICAL-BODY AND CHASSIS 8A-141
REMOVAL AND INSTALLATION

ECM (ENGINE CONTROL MODULE);
4JH1-TC


Removal
1. Remove the passenger side front seat – refer to Section 10
CAB.
2. Remove the passenger side front door opening scuff plate.
3. Raise the carpet to gain access to the four hex-head bolts securing the ECM and ECM cover to the floor pan .
4. Remove the four hex-head bolts.
5. Pull the two harness connector locks away from the harness connectors and then remove the connectors form
the ECM.
6. Remove the ECM from the vehicle.
Refer to the Section 6E-ENGINE of this Manual.
IMPORTANT: The replacement ECM must be programmed.
“SPS (Service Programming System) and immobilizer
programming (if equipped) is/are necessary”







Installation
Follow the removal procedure in the reverse order to install the
ECM.
Torque passenger seat securing bolts to the specified value –
refer to Section 10 CAB
Pay close attention to the important points mentioned in the
following paragraphs.



Connector
Be absolutely sure that ECM is securely connected.
This will prevent a poor contact and open circuit.



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ELECTRICAL-BODY AND CHASSIS 8A-157

CIRCUIT DIAGRAM 4JA1T (L), 4JH1-TC, 4JJ1-TC, 4JK1-TC (HALOGEN STD TYPE)






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8A-158 ELECTRICAL-BODY AND CHASSIS

CIRCUIT DIAGRAM 4JA1T (L), 4JH1-TC, 4JJ1-TC, 4JK1-TC (HALOGEN PROJECTOR
TYPE)






RTW 78AXF004301

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ELECTRICAL-BODY AND CHASSIS 8A-159

CIRCUIT DIAGRAM 4JA1T (L), 4JH1-TC, 4JJ1-TC, 4JK1-TC (CLEARANCE LIGHT,
LICENSE PLATE LIGHT, TAIL LIGHT)


RTW 78AXF026701

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ELECTRICAL-BODY AND CHASSIS 8A-209

CIRCUIT DIAGRAM 4JH1-TC (LHD)








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ELECTRICAL-BODY AND CHASSIS 8A-257

CIRCUIT DIAGRAM 4JH1-TC


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ELECTRICAL-BODY AND CHASSIS 8A-271

CIRCUIT DIAGRAM 4JJ1-TC/4JK1-TC, 4JH1-TC


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