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.
Remote Control Entry Operation
Operation is possible when any of the following operating conditions are met.
- When a button on the key fob is operated, the signal is sent from the key fob and received by the remote keyless entry receiver.
- The received signal is sent from remote keyless entry receiver terminal 2 to BCM terminal 20 and compared with the registered ID number.
- If the ID number matches, the BCM uses communication to send the lock/unlock signal to the door lock actuator LH.
When the door lock signal is received,
- The BCM supplies voltage from terminal 50 to door lock actuator LH terminal 3 and the front door LH lock is locked
When the door unlock signal is received,
- The BCM supplies voltage from terminal 44 to door lock actuator LH terminal 1 2 and the front door LH is unlocked.
The door lock actuator LH operation detects the lock/unlock operation of the driver door lock with the status detection switch built into the door lock actuator LH.
When the BCM receives the door lock signal,
- The BCM supplies voltage from terminal 50 to all door lock actuator terminals 3 (front RH), 4 [sliding RH and LH, back (without back door closure system)] and locks the doors.
When the BCM receives the door unlock signal,
- The BCM supplies voltage from terminal 51 to all door lock actuator terminals 2 and unlocks the doors.
When the sliding door control unit receives the door lock signal (same operation for both left and right sliding),
- It supplies voltage from sliding door control unit terminal 25 to sliding door lock actuator terminal 4 and locks the sliding doors.
When the sliding door control unit receives the door unlock signal (same operation for both left and right sliding),
- It supplies voltage from sliding door control unit terminal 28 to sliding door lock actuator terminal 2 and unlocks the sliding doors.
When the back door control unit receives the door lock signal,
- It stops the supply of voltage to the back door closure motor and stops the back door open operation.
When the back door control unit receives the door unlock signal,
- The supply of voltage to the back door closure motor goes on standby and operation of the back door opener switch enables operation.
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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.
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