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:
Power Window Master Switch 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. Turn the ignition switch to LOCK (0), open and clos ...
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