Honda Accord 2008 Manual page 324

07/11/02 08:59:58 61TA0000_110_0005
CKP Pattern Clear/CKP Pattern Learn
Clear/Learn Procedure (with the HDS)
1. Connect the HDS to the data link connector (DLC)
(A) located under the driver's side of the dashboard.
＊０３
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the ECM/
PCM and other vehicle systems. If it doesn't, go to
the DLC circuit troubleshooting (see page 11-208).
4. Select CRANK PATTERN in the ADJUSTMENT
MENU with the HDS.
5. Select CRANK PATTERN LEARNING with the HDS,
and follow the screen prompts.
A
Learn Procedure (without the HDS)
1. 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.
2. Test-drive the vehicle on a level road: Decelerate
(with the throttle fully closed) from an engine speed
of 2,500 rpm down to 1,000 rpm with the A/T in 2,
or the M/T in 2nd.
3. Repeat step 2 several times.
4. Turn the ignition switch to LOCK (0).
5. Turn the ignition switch to ON (II), and wait
30 seconds. The CKP pattern learn procedure is
complete.
How to End a Troubleshooting Session
(required after any troubleshooting)
1. Reset the ECM/PCM with the HDS.
2. Do the ECM/PCM idle learn procedure (see page
11-343).
3. Turn the ignition switch to LOCK (0).
4. Disconnect the HDS from the DLC.
NOTE: The ECM/PCM is part of the immobilizer
system. If you replace the ECM/PCM, it will have a
different immobilizer code. In order for the engine
to start, you must rewrite the immobilizer code with
the HDS (immobilizer system section).
(cont'd)
11-5