how to fix U0101 code in Honda Pilot YF3 (2016-2022)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Ensure the vehicle is on a flat surface and secure it with wheel chocks.

2. Inspect Wiring and Connectors

• Carefully remove the engine cover if necessary to access the wiring harness.
• Examine the wiring harness for fraying, wear, or corrosion.
• Disconnect the connectors at both the ECM and TCM.
• Clean the connectors with an electronic cleaner and reconnect.

3. Check and Replace TCM Fuse

• Locate the fuse box and identify the fuse related to the TCM.
• Remove the fuse and inspect it for continuity using a multimeter.
• Replace the fuse if it is blown with a new fuse of the same amperage rating.

4. Test TCM Ground and Power Supply

• Use a multimeter to check for voltage at the TCM connector.
• Verify that the TCM ground is secure and has continuity to the battery ground.

5. Replace TCM (if necessary)

• If diagnostic steps indicate a faulty TCM, remove the old TCM:
  • Disconnect all wiring and connectors from the TCM.
  • Unbolt TCM from its mounting location using a socket set.
• Install the new TCM:
  • Position the new TCM in place and secure it with bolts to the specified torque (typically 7-9 lb-ft).
  • Reconnect all wiring and connectors securely.