Honda ACCORD HYBRID 2005 Service Manual page 67

• ENGINE •
Ignition C o i l R e l a y C i r c u i t T r o u b l e s h o o t i n g
1. Check the No. 2 (15 A) fuse in the under-dash fuse/
relay box.
Is the fuse OK ?
Y E S — G o to step 2.
NO—Replace the f u s e . B
2. Remove the ignition coil relay f r o m the under-dash
fuse/relay box and test it (see page 22-72).
Is the relay OK?
Y E S — G o t o step 3.
NO—Replace the ignition coil relay.B
3. Measure the voltage between ignition coil relay 4P
socket terminal No. 1 and body g r o u n d , then
terminal No. 4 and body g r o u n d .
IGNITION COIL R E L A Y 4P S O C K E T
1
2
4 3
T e r m i n a l side of female t e r m i n a l s
Is there battery voltage?
Y E S — G o t o step 4.
NO—Replace the under-dash fuse/relay box.
4. Check for continuity between ignition coil relay 4P
socket terminal No. 2 and the No. 1 ignition coil 3P
connector t e r m i n a l No. 3.
IGNITION COIL R E L A Y 4P S O C K E T
T e r m i n a l side of
f e m a l e t e r m i n a l s
W i r e side of
f e m a l e t e r m i n a l s
1
2 2
4 3
3
No. 1 IGNITION COIL 3P C O N N E C T O R
Is there continuity?
Y E S — G o t o step 5.
NO—Repair an open in the w i r e between ignition
coil relay 4P socket terminal No. 2 and No. 1
ignition coil 3P connector terminal No. 3.M
5. Turn the ignition switch ON (II), and j u m p the SCS
line w i t h the Honda Diagnostic System (HDS), then
turn the ignition switch OFF.
NOTE: This must be done to protect the powertrain
control module (PCM) f r o m damage.
6. Disconnect PCM connector E (31P).
(cont'd)
4-23