Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2012CT 200H L4-1.8L (2ZR-FXE) HYBRIDREPAIR AND DIAGNOSISBODY AND FRAMEBODY CONTROL SYSTEMSBODY CONTROL MODULESERVICE AND REPAIRINSTALLATION
2012 Lexus CT 200h L4-1.8L (2ZR-FXE) Hybrid
Installation
2012 Lexus CT 200h L4-1.8L (2ZR-FXE) HybridSECTION Installation
POWER DISTRIBUTION: MAIN BODY ECU: INSTALLATION
1. INSTALL MAIN BODY ECU
NOTICE:
* Make sure that no foreign matter gets on the connecting surfaces.
* Do not touch the ECU connector.
(a) Insert the main body ECU up to the position it contacts the housing sidewall of the guide as shown in the illustration.
Text in Illustration
HINT
Make sure to keep the angle 20° or more as shown in the illustration.
(b) Slide the guide of the main body ECU along the housing sidewall so that it contacts the junction block fuses as shown in the illustration.
Text in Illustration
(c) While contacting the main body ECU to side A of the junction block (axis of rotation), rotate it downward as shown in the illustration.
Text in Illustration
(d) Press the push area until the claw engages to install the main body ECU.
Text in Illustration
NOTICE:
* Make sure to press only the push area.
* Confirm the engagement of the main body ECU and junction block by listening for the lock sound.
HINT
If a lock sound cannot be heard, visually check the lock part engagement. The engagement can also be confirmed if the main body ECU and junction block are flush.
2. INSTALL INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
(a) Engage the claw to install the connector as shown in the illustration.
NOTICE:
Be sure to engage the connector securely.
(b) Engage the claw to lock the connector lock as shown in the illustration.
(c) Engage the claw to connect the connector as shown in the illustration.
NOTICE:
Be sure to engage the connector securely.
(d) Engage the 2 clamps to connect the wire harness.
(e) Install the instrument panel junction block assembly with the bolt and nut.
Torque : 8.4 Nm (86 kgf-cm, 74 in-lbf)
(f) Connect each connector.
NOTICE:
Be sure to engage each connector securely.
3. INSTALL LOWER INSTRUMENT PANEL SUB-ASSEMBLY
Installation
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.