Ecm/Pcm Replacement - Honda Accord 2008 Manual

07/11/02 09:11:58 61TA0000_110_0232
PGM-FI System
ECM/PCM Update (cont'd)
7. If the software in the ECM/PCM is the latest,
disconnect the HDS/HIM from the DLC, and go back
to the procedure that you were doing. If the
software in the ECM/PCM is not the latest, follow
the instructions on the screen. If prompted to
choose the PGM-FI system or the A/T system, make
sure you update both.
NOTE: If the ECM/PCM update system requires you
to cool the ECM/PCM, follow the instructions on
screen. If you run into a problem during the update
procedure (programming takes over 15 minutes,
status bar goes over 100 %, D or immobilizer light
flashes, HDS tablet freezes, etc.), follow these steps
to minimize the chance of damaging the ECM/PCM:
• Leave the ignition switch in the ON (II) position.
• Connect a jumper battery (do not connect a
battery charger).
• Shut down the HDS.
• Disconnect the HDS from the DLC.
• Reboot the HDS.
• Reconnect the HDS to the DLC, and try the
update procedure again.
8. If the TP POSITION CHECK failed in step 6, clean
the throttle body (see page 11-385).
9. Do the ECM/PCM idle learn procedure (see page
11-343).
10. Do the CKP pattern learn procedure.
11-232 11-232

ECM/PCM Replacement

Special Tools Required
• Honda diagnostic system (HDS) tablet tester
• Honda interface module (HIM) and an iN workstation
with HDS and CM update software
• HDS pocket tester
• GNA600 and an iN workstation with HDS and CM
update software
Use any one of these update tools.
1. Connect the HDS to the data link connector (DLC)
(A) located under the driver's side of the dashboard.
A
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). If
you are returning from the DLC circuit
troubleshooting, skip steps 5 through 10, 19
through 24, and 27 through 29, and do these
procedures after replacing the ECM/PCM:
• Replace the engine oil (see page 8-10) and the
engine oil filter (see page 8-11).
• Replace the ATF (A/T model) (see page 14-242).
• Clean the throttle body (see page 11-385).
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