Honda Accord 2008 Manual page 421

07/11/02 09:04:04 61TA0000_110_0102
PGM-FI System
DTC Troubleshooting (cont'd)
20. Test-drive under these conditions:
• Engine coolant temperature (ECT SENSOR 1)
above 158 °F (70 °C)
• A/T in D, M/T in 4th
• Engine speed between 1,500 3,000 rpm
• Drive about 1 minute or more
21. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P0137 indicated?
YES − Check for poor connections or loose
terminals at the secondary HO2S (Sensor 2) and
the ECM/PCM, then go to step 1.
NO − Go to step 22.
22. Monitor the OBD STATUS for DTC P0137 in the
DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES − Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 21,
go to the indicated DTC's troubleshooting.
−
NO If the screen indicates FAILED, check for poor
connections or loose terminals at the secondary
HO2S (Sensor 2) and the ECM/PCM, then go to step
1. If the screen indicates EXECUTING, keep driving
until a result comes on. If the screen indicates OUT
OF CONDITION or NOT COMPLETED, go to step 19.
23. Reconnect all connectors.
24. Update the ECM/PCM if it does not have the latest
software (see page 11-231), or substitute a known-
good ECM/PCM (see page 11-7).
25. Start the engine, and let it idle without load (A/T in
P or N, M/T in neutral) until the radiator fan comes
on.
26. Test-drive under these conditions:
• Engine coolant temperature (ECT SENSOR 1)
above 158 °F (70 °C)
• A/T in D, M/T in 4th
• Engine speed between 1,500 3,000 rpm
• Drive 1 minute or more
11-102
27. Check for Temporary DTCs or DTCs with the HDS.
−
28. Monitor the OBD STATUS for DTC P0137 in the
−
Is DT C P0137 indicated?
YES − Check for poor connections or loose
terminals at the secondary HO2S (Sensor 2) and
the ECM/PCM. If the ECM/PCM was updated,
substitute a known-good ECM/PCM (see page 11-7),
then go to step 25. If the ECM/PCM was substituted,
go to step 1.
NO − Go to step 28.
DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES − If the ECM/PCM was updated,
troubleshooting is complete. If the ECM/PCM was
substituted, replace the original ECM/PCM
(see page 11-232). If any other Temporary DTCs or
DTCs were indicated in step 27, go to the indicated
DTC's troubleshooting.
NO − If the screen indicates FAILED, check for poor
connections or loose terminals at the secondary
HO2S (Sensor 2) and the ECM/PCM. If the ECM/
PCM was updated, substitute a known-good ECM/
PCM (see page 11-7), then go to step 25. If the ECM/
PCM was substituted, go to step 1. If the screen
indicates EXECUTING, keep driving until a result
comes on. If the screen indicates OUT OF
CONDITION or NOT COMPLETED, go to step 25.