RL V6-3.7L (2009)
Engine Control Module: Service and Repair
PCM Replacement
Special Tools Required
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Honda diagnostic system (HDS) tablet tester
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Honda interface module (HIM) and an iN workstation with the latest HDS software version
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HDS pocket tester
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GNA600 and an iN workstation with the latest HDS software version
Any one of the above updating tools can be used.
NOTE:
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Make sure the HDS has the latest software version.
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If you are replacing the PCM after substituting a known-good PCM, reinstall the original PCM, then do this procedure.
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During the procedure, if any READ DATA, WRITE DATA, or other data checks fail, note the failure, then continue.
1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the PCM and other vehicle systems. If it doesn't, go to the DLC circuit troubleshooting. See: Computers
and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/DLC Circuit Troubleshooting If you are returning from
DLC circuit troubleshooting, skip steps 4 through 9, 17 through 19, 22, and 23, then do this after replacing the PCM:
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Replace the engine oil See: Engine, Cooling and Exhaust/Engine/Engine Lubrication/Engine Oil/Service and Repair and the engine oil filter.
See: Engine, Cooling and Exhaust/Engine/Engine Lubrication/Oil Filter/Service and Repair
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Clean the throttle body. See: Fuel Delivery and Air Induction/Throttle Body/Service and Repair/Procedures
4. Select the PGM-FI system with the HDS.
5. Select the INSPECTION MENU with the HDS.
6. Select the ETCS TEST, then select the TP POSITION CHECK, and follow the screen prompts.
NOTE: If the TP POSITION CHECK indicates FAILED, continue with this procedure.
7. Select the REPLACE PCM MENU, then select READ DATA, and follow the screen prompts.
NOTE:
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Doing this step copies (READS) the engine oil life data from the original PCM so you can later download (WRITE) it into the new PCM.
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If the READ DATA indicates FAILED, continue with this procedure.
8. Turn the ignition switch to LOCK (0).
9. Do the battery terminal disconnection procedure. See: Starting and Charging/Battery/Service and Repair/Procedures
