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:
Gauges
Gauges include the speedometer, tachometer, fuel gauge, and related
indicators.
They are displayed when the ignition switch is in ON
• Speedometer
Displays your driving speed in mph (U.S.) ...
Fuel Line/Quick-Connect Fitting
Precautions
The fuel line/quick-connect fittings (A, B, C, D, E, and F)
connect the fuel rail (G) to the fuel feed hose (H), the fuel
feed hose to the fuel line (I), the fuel line (J) to the fuel
tank unit (K) ...
Alternator FR Signal Circuit
Troubleshooting
1. Start the engine, and let it idle.
2. Monitor the ALTERNATOR in the DATA LIST with the
HDS.
3. Check if the indicated percentage varies when the
headlight switch is turned on.
Does the p ...
