Honda Accord 2008 Manual page 568

07/11/02 09:12:42 61TA0000_110_0249
DTC P1659:
Malfunction
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. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P1659 indicated?
YES
NO −
time. Check for poor connections or loose terminals
at the ETCS control relay and the ECM/PCM.
4. Turn the ignition switch to LOCK (0).
5. Check the No. 18 DBW (THROTTLE ACTUATOR
CONTROL) (15 A) fuse in the under-hood fuse/relay
box.
Is the f use OK ?
YES
NO −
6. Remove the ETCS control relay (A) from the under-
hood fuse/relay box.
＊０１
ETCS Control Relay OFF
−
Go to step 4.
Intermittent failure, the system is OK at this
− Go to step 6.
Go to step 17.
A
7. Test the ETCS control relay (see page 22-91).
Is the ET CS control relay OK ?
YES − Go to step 8.
NO − Replace the ETCS control relay, then go to
step 23.
8. Turn the ignition switch to ON (II).
9. Measure voltage between ETCS control relay 4P
connector terminal No. 4 and body ground.
ETCS CONTROL RELAY 4P CONNECTOR
IGP
Terminal side of female terminals
Is there battery voltage?
YES − Go to step 10.
−
NO Replace the under-hood fuse/relay box
(see page 22-83), then go to step 22.
ＴＡ０８ＡＥＡＫ７２１０００９１６５９ＦＡＡＴ００
＊０２
(cont'd)
11-249