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:
Function Test
NOTE;
• With climate control: Before testing, troubleshoot the
B-CAN System Diagnosis Test Mode A (see page
22-134).
• Before testing, check the No. 4 (40 A) fuse in the
under-hood fu ...
Trunk Lid Latch Switch Test
1. Open the trunk lid.
2. Disconnect the 3P connector (A) from the trunk lid
latch assembly (B).
3. Check for continuity between terminals No. 1 and No.
2.
• There should be continui ...
Switch Test/Replacement
1. Separate the lumbar support switch cover (A) from
the switch (B).
2. Disconnect the 5P connector (C) from the switch.
3. Check for continuity between the terminals in each
switch position a ...
