Honda Accord 2008 Manual page 574

07/11/02 09:12:43 61TA0000_110_0255
DTC P2101: Electronic Throttle Control
System (ETCS) Malfunction
Do not insert your fingers into the installed throttle
body when you turn the ignition switch to ON (II) or
while the ignition switch is ON (II). If you do, you
will seriously injure your fingers if the throttle valve
is activated.
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Do the ETCS TEST in the INSPECTION MENU with
the HDS.
4. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P2101 indicated?
−
YES Go to step 7.
NO − Go to step 5.
5. Test-drive the vehicle for several minutes in the
range of these recorded freeze data parameters:
• ENGINE SPEED
• VSS
• APP SENSOR
6. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P2101 indicated?
YES − Go to step 7.
−
NO Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the throttle body and the ECM/PCM, then clean
the throttle body (see page 11-385).
7. Turn the ignition switch to LOCK (0).
8. Disconnect the intake air duct from the throttle
body (see page 11-388).
9. Turn the ignition switch to ON (II).
10. Clear the DTC with the HDS.
11. Do the ETCS TEST in the INSPECTION MENU with
the HDS.
12. Visually check the throttle valve operation.
Does the throttle valve operate smoothly?
YES − Clean the throttle body (see page 11-385),
then go to step 23 and recheck. If DTC P2101 is
indicated, go to step 21.
−
NO Go to step 13.
13. Turn the ignition switch to LOCK (0).
14. Disconnect the throttle body 6P connector.
15. Jump the SCS line with the HDS.
16. Disconnect ECM/PCM connector C (49P).
17. Check for continuity between ECM/PCM connector
terminals C43 and throttle body 6P connector
terminal No. 4.
THROTTLE BODY 6P CONNECTOR
SG3 (GRN)
Wire side of female terminals
ECM/PCM CONNECTOR C (49P)
SG3 (GRN)
Terminal side of female terminals
Is there continuity?
YES − Go to step 18.
−
NO Repair open in the wires between the throttle
body and the ECM/PCM (C43), then go to step 23.
ＴＡ０８ＡＥＡＫ７２１０００９２１０１ＦＡＡＴ３０
＊０１
(cont'd)
11-255