Honda ACCORD HYBRID 2005 Service Manual page 1623

DTC B2990 or DTC indicator X: A Problem in
the A/C Compressor Driver
NOTE: Put on rubber gloves to protect against electrical
shock.
IMA c o m p o n e n t s are located in this area. The IMA is a
high-voltage system. You must be familiar w i t h the IMA
system before w o r k i n g on or around it. Make sure you
have read the IMA service precaution before doing
repairs or service (see page 12-3).
1. Check the No. 29 (7.5 A) fuse in the under-dash
fuse/relay box.
Is the fuse OK ?
Y E S — G o t o step 2.
NO—Replace the fuse, and recheck. •
2. Stop the engine for at least 1 hour.
3. Clear the DTC w i t h the HDS.
4. Operate the climate control system in several
modes.
5. Check for DTCs using the HDS or self-diagnostic.
Is DTC B2990, B2998, X, or Y indicated?
Y E S -
• B2990 or X indicated: go to step 6.
• B2998 or Y indicated: go to the troubleshooting
DTC B2998 or DTC indicator Y (see page 21-61).
NO—Intermittent failure. •
6. Remove the IPU lid (see page 12-140).
7. Check that the A/C compressor driver is properly
connected.
Is it connected properly?
Y E S - G o t o step 8.
NO—Reconnect the connector and cable, and
recheck the function. •
8. Remove the high voltage cable (A) and A/C
compressor driver cable (B), then w r a p the high
voltage cable w i t h insulating tape (C).
B A
9. Check the A/C compressor driver fuse (30 A) in the
junction board, by checking for continuity between
A and B terminals.
B terminal
Is there continuity?
Y E S — G o t o step 10.
NO—Replace the fuse and recheck (see page
12-142). If the fuse blows again, replace the A/C
compressor driver (see page 21-99) and f u s e . H
(cont'd)
21-53