my Toyota Highlander has a check engine light with code B2200 what does it mean

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery cable to prevent electrical shorts.
• Ensure the vehicle is in a safe, level location and properly supported if lifting is required.

2. Inspect and Clean Connections

• Remove the BCM from its mounting location.
  • Tools Required: Socket set, small ratchet.
• Inspect the connectors for dirt or corrosion.
• Clean the connectors using electrical contact cleaner.
• Ensure all pins are straight and making proper contact.

3. Test and Replace the Body Control Module

• Using a multimeter, test the BCM for proper voltage output and functionality.
• If the BCM is faulty, replace it:
  • Disconnect the wiring harness from the old BCM.
  • Install the new BCM by connecting the wiring harness and securing it with screws.
  • Parts Required: New body control module.
  • Tools Required: Socket set, torque wrench (if applicable).

4. Reconnect Battery and Clear Codes

• Reconnect the negative battery cable.
• Use an OBD-II scanner to clear the check engine light and stored codes.
• Safety Warnings: Ensure the ignition is off when connecting or disconnecting electrical components.