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 MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 184 (MULTIPLEX INTEGRATED CONTROL SYSTEM)SYSTEM DESCRIPTIONPOWER DOOR LOCKS*
2008 Chevrolet HHR LT, 2.4 P, Automatic
Power Door Locks*
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Power Door Locks*
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
The MICU control of the door lock actuators is based on inputs from each switch.
MICU SPECIFICATIONS
| Input | Output | |
|---|---|---|
| MICU | IG1 power supply Ignition key switch Driver's door switch Front passenger's door switch Left rear door switch Right rear door switch Hatch latch switch Driver's door lock switch (LOCK/UNLOCK) Driver's door key cylinder switch (LOCK/UNLOCK) Driver's door lock knob switch (LOCK/UNLOCK) |
Door lock actuator (LOCK/UNLOCK) Driver's door lock actuator (UNLOCK) |
| *: The security system can be customized in the multi-information display (MID) to suit the customer's needs. For more information about keyless/security system options, refer to the Owner's Manual. | ||
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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.