Honda Accord 2008 Manual page 412

07/11/02 09:03:21 61TA0000_110_0093
19. 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).
20. Let the engine cool until the coolant temperature is
between 21 °F ( 6 °C) and 104 °F (40 °C).
21. Start the engine. Hold the engine speed at
3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle.
22. Test-drive at a steady speed between 15 75 mph
(24 120 km/h) for 10 minutes. −
23. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P0128 indicated?
YES − Check for poor connections or loose
terminals at ECT sensor 1, ECT 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 20. If the ECM/PCM was substituted, go to
step 1.
−
NO Go to step 24.
24. Monitor the OBD STATUS for DTC P0128 in the
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 23, go to the indicated
DTC's troubleshooting.
NO − If the screen indicates FAILED, check for poor
connections or loose terminals at ECT sensor 1,
ECT 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 20. If the ECM/PCM
was substituted, go to step 1. If the screen indicates
NOT COMPLETED, go to step 20.
−
−
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