Honda ACCORD HYBRID 2005 Service Manual page 431

DTC U0164: IMA-CAN Malfunction
(A/C compressor driver-PCM)
1. Turn the ignition switch ON (II).
2. Clear the DTC w i t h the HDS.
3. Check for Temporary DTCs or DTCs in the DTCs
MENU with the HDS.
Is DTC U0164 indicated?
Y E S — G o t o step 4.
NO—Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the M C M , the A/C compressor driver and the PCM.
4. Check for Temporary DTCs or DTCs in the DTCs
MENU with the HDS again.
Are DTC U0037 and U0164 indicated at the same
time?
Y E S — G o to troubleshooting DTC U0037 (see page
11-180).
NO—Go to step 5.
5. Check for Temporary DTCs or DTCs in the DTCs
MENU w i t h the HDS again.
Are DTC (J0110, U0164 and U1201 indicated at
the same time?
Y E S — G o to troubleshooting DTC U0110 (see page
11-187), or DTC U1201 (see page 11-197).
N O — G o t o step 6.
6. Check the No. 29 (7.5 A) fuse in under-dash fuse/
relay box.
Is the fuse blown?
YES—Repair short in the wire the A/C compressor
driver and the No. 29 (7.5 A) fuse. Also replace the
No. 29 (7.5 A) fuse, then go to step 17.
N O — G o t o step 7.
7. Turn the ignition switch OFF.
8. Remove the IPU lid (see page 12-140).
9. Disconnect MCM connector A (31P) (see page
12-140).
10. Disconnect the A/C compressor driver 4P connector
(see page 12-140).
11. Check for continuity between MCM connector
terminal A7 and A/C compressor driver 4P
connector terminal No. 2.
A / C C O M P R E S S O R DRIVER 4P CONNECTOR
1 2 3 4
IMACANH (WHT)
MCM CONNECTOR A (31P) I
1 2 | 3 4 | 5
6 | 7 8
9
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26 27 28 29 30 31
Wire side of female t e r m i n a l s
Is there continuity?
Y E S - G o t o step 12.
NO—Repair open in the w i r e between the MCM
(A7) and the A/C compressor driver, then go to
step 18.
(cont'd)
11-191