Honda ACCORD HYBRID 2005 Service Manual page 769

DTC P1446 (74): Battery Module Individual
Voltage Input Deviation
1. Turn the ignition switch ON (II).
2. Check for T e m p o r a r y DTCs or DTCs w i t h the HDS.
Is DTC P0A7F indicated?
Y E S — D o the troubleshooting for DTC P0A7F
(see page 12-59).
N O — G o t o step 3.
3. Reset the M C M (see page 12-6).
4. Start the engine, and w a i t 1 minute.
5. Check for T e m p o r a r y DTCs or DTCs w i t h the HDS.
Is DTC P1446 indicated?
Y E S — G o t o step 6.
NO—Intermittent failure, system is OK at this t i m e .
Check for poor connections or loose terminals at
the battery m o d u l e and the M C M . B
6. Note the value of BATT. MDL VOLTAGE 1 to BATT.
MDL VOLTAGE 10 in the DATA LIST w i t h the HDS.
7. Turn the ignition switch OFF.
8. Turn the battery m o d u l e switch OFF (see page 12-4).
9. Remove the IPU lid (see page 12-140).
10. Turn the ignition switch ON (II).
11. Disconnect M C M connector C (14P).
12. Measure voltage between the f o l l o w i n g M C M
connector terminals, then compare the f o l l o w i n g
value of BATT. MDL VOLTAGE 1 to BATT. MDL
VOLTAGE 10 in the DATA LIST w i t h the HDS.
C 1 4 a n d C6, and value of BATT. MDL VOLTAGE 1
C6 and C13, and value of BATT. MDL VOLTAGE 2
C13 and C5, and value of BATT. MDL VOLTAGE 3
C5 and C12, and value of BATT. MDL VOLTAGE 4
C12 and C4, and value of BATT. MDL VOLTAGE 5
C3 and C9, and value of BATT. MDL VOLTAGE 6
C9 and C2, and value of BATT. MDL VOLTAGE 7
C2 and C8, and value of BATT. MDL VOLTAGE 8
C8 and C 1 , and value of BATT. MDL VOLTAGE 9
C1 and C7, and value of BATT. MDL VOLTAGE 10
MCM C O N N E C T O R C (14P)
VHB8
( G R N / B L K )
VHB10
(BLU)
VHB6
( B L U /
YEL)
VHB5
( G R N /
WHT)
- V H B 3 (GRN)
VHB1
( G R N / Y E L )
VHB11 (WHT)
VHB9 (YEL)
1 2 3
i—i
4 5 6
7 8 9
/ /
1 2 1 3 1 4
VHBO (RED)
VHB2 (BLK)
VHB7 VHB4
( B L U / R E D ) (GRN/RED)
W i r e side of f e m a l e t e r m i n a l s
Is there more than 1 V difference between the
MCM measurement and the DATA LIST
measurement?
Y E S — G o t o step 19.
NO—Replace the battery module (see page 12-146),
and go to step 13.
13. Reconnect all connectors.
14. Reinstall the IPU lid (see page 12-140), then turn the
battery m o d u l e switch ON (see page 12-4).
15. Turn the ignition switch ON (II).
16. Reset the M C M (see page 12-6).
(cont'd)
12-91