Page 5076 of 6020
8A-138 ELECTRICAL-BODY AND CHASSIS
CIRCUIT DIAGRAM 4JH1-TC (LHD) Sheet 1/2
RTW 78AXF004601
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Page 5077 of 6020
ELECTRICAL-BODY AND CHASSIS 8A-139
CIRCUIT DIAGRAM 4JH1-TC (LHD) Sheet 2/2
RTW 78AXF004701
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Page 5078 of 6020
8A-140 ELECTRICAL-BODY AND CHASSIS
REMOVAL AND INSTALLATION
ECM (ENGINE CONTROL MODULE);
C24SE
Removal
1. Lift both the ECM harness connector locking levers and
remove the two harness connectors form the ECM.
2. Remove the four socket head screws securing the ECM to the mounting bracket.
3. Remove the ECM from the engine compartment .
4. Pull out the ECM.
5. Disconnect both red and tan connectors.
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.
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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Page 5079 of 6020
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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Page 5080 of 6020
8A-142 ELECTRICAL-BODY AND CHASSIS
REMOVAL AND INSTALLATION
FUEL GAUGE UNIT AND SENDER
ASSEMBLY
Removal
1. Remove the fuel gauge unit and sender assembly.
Refer to the “ENGINE FUEL” Section 6C of this Manual.
Installation
To install the fuel gauge unit and sender assembly, follow the
removal procedure in reverse order.
Pay close attention to the important points mentioned in the
following paragraphs.
Rubber Seal
Be absolutely sure that the fuel sender rubber seals are
correctly seated.
Connector
Be absolutely sure that the fuel gauge unit connector is
securely connected.
This will prevent a poor contact and an open circuit.
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ELECTRICAL-BODY AND CHASSIS 8A-143
EXHAUST GAS RECIRCULATION (EGR) & GLOW; 4JA1T (L) ONLY
PARTS LOCATION (RHD)
RTW 78AXF036501 & RTW 78AMF001101
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Page 5082 of 6020
8A-144 ELECTRICAL-BODY AND CHASSIS
PARTS LOCATION (RHD)
RTW 78AXF042701
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ELECTRICAL-BODY AND CHASSIS 8A-145
PARTS LOCATION (LHD)
RTW 78AXF036601 & RTW 78AMF001101
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