Honda Accord: Component Location Index
Eighth generation (2008–2012) / Honda Accord MK8 2008-2012 Service Manual / Fuel and Emissions / Catalytic Converter System / Component Location Index

DTC Troubleshooting
DTC P0420: Catalyst System Efficiency Below
Threshold
NOTE:
- Before you troubleshoot, record all freeze data and
any on-board snapshot, and review the general
troubleshooting information (see pa ...
See also:
Clutch Master Cylinder Replacement
NOTE:
- Use fender covers to avoid damaging
painted
surfaces.
- Do not spill brake fluid on the vehicle; it may damage
the paint or plastic. If brake fluid does contact the paint
or plastic, ...
Maintenance
This section explains why it is
important to keep your vehicle well
maintained and how to follow basic
maintenance safety precautions.
This section also includes
instructions on how to read t ...
A/C Signal Circuit Troubleshooting
1. Start the engine, and let it idle.
2. Turn the blower switch on.
3. Turn the A/C switch on.
4. Check the A/C CLUTCH in the DATA LIST with the
HDS.
Does it indicate ON?
YES-Go to step ...
