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:
Crankshaft Inspection
Out-of-Round and Taper
1. Remove the crankshaft from the engine block (see
page 7-14).
2. Remove the crankshaft position (CKP) pulse plate
from the crankshaft (see page 7-30).
3. Clean the cr ...
Body
Special Tools
...
Immobilizer-Keyless Control Unit Input
Test
NOTE: Before testing, troubleshoot the multiplex integrated control unit
first, using B-CAN System Diagnosis Test Mode
A (see page 22-134).
1. Remove the driver's dashboard lower cover (see page ...
