Honda Pilot: PCM Removal and Installation

Removal

NOTE:

• Make sure the HDS or the MVCI has the latest HDS software version.
• If you are replacing the PCM after substituting a known-good PCM, reinstall the original PCM, then do this procedure.
• If you are removing or substituting the PCM, skip the procedures of READ DATA (Engine Oil Life and Starter Counter) .

1. HDS - Connect

2. READ DATA (Engine Oil Life and Starter Counter) - Select (USA and Canada Models)

1. Select the PGM-FI system with the HDS.
2. Select the REPLACE PCM MENU, then select READ DATA, and follow the screen prompts.

NOTE:

• Doing this step copies (READS) the engine oil life data and the starter counter data from the original PCM so you can later download (WRITES) them into the new PCM.
• If the READ DATA indicates FAILED, continue with this procedure.

3. SCS - Short

1. Jump the SCS line with the HDS, and wait more than 1 minute.
2. Turn the vehicle to the OFF (LOCK) mode.

4. Front Bulkhead Cover - Remove

5. PCM - Remove

1. Disconnect PCM connectors A, B, and C.

   NOTE: PCM connectors A, B, and C have symbols (A=□, B=△, C=○) embossed on them for identification.

2. Remove the connector (D), and the harness holder (E).
3. Remove the PCM assembly (F).

4. Remove the cover (A) and the bracket (B) from the PCM (C).

Installation

NOTE:

• If you are removing the PCM, skip the procedures of using the HDS.

1. PCM - Install

1. Install the cover (A) and the bracket (B).

2. Install the PCM assembly (D).
3. Connect PCM connectors A, B, and C.

   NOTE: PCM connectors A, B, and C have symbols (A=□, B=△, C=○) embossed on them for identification.

4. Install the connector (E), and the harness holder (F).

2. Front Bulkhead Cover - Install

3. SCS - Open

1. Exit the SCS mode with the HDS.

Procedure After Replacing PCM

4. VIN - Input

1. Turn the vehicle to the ON mode.

   NOTE: DTC P0630 VIN Not Programmed or Mismatch may be stored because the VIN has not been programmed into the PCM; ignore it, and continue this procedure.

2. Manually input the VIN to the PCM with the HDS.

5. WRITE DATA (Engine Oil Life and Starter Counter) - Select (USA and Canada Models)

NOTE: If the READ DATA (engine oil life and starter counter) failed in "READ DATA (Engine Oil Life and Starter Counter) - Select", skip this procedure.

1. Select the REPLACE PCM MENU, then select WRITE DATA, and follow the screen prompts.

6. Other Procedures for PCM Replacement - Do (USA and Canada Models)

1. If the READ DATA (engine oil life) failed in "READ DATA (Engine Oil Life and Starter Counter) - Select", replace the engine oil and the engine oil filter.

7. Keyless Access System - Registration

8. DTC - Clear

1. Clear the Pending or Confirmed DTCs with the HDS.

9. PCM - Update

10.PCM - Idle Learn

PCV Valve Removal and Installation

Removal and Installation

1. Engine Cover - Remove

2. Engine Harness Holder - Lift

3. PCV Valve - Remove

1. Remove the PCV valve (A).

   NOTE: Take care not to spill any oil on the hot exhaust manifold.

4. All Removed Parts - Install

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