Honda ACCORD HYBRID 2005 Service Manual page 725

DTC P0A5F (25): U Phase Motor Current
Sensor Circuit High Voltage
1. Turn the ignition switch ON (II).
2. Check the U PHASE MOTOR CURRENT SENSOR in
the DATA LIST w i t h the HDS.
Is about 4.84 V or more indicated?
YES — G o to step 3.
NO—Intermittent failure, system is OK at this t i m e .
Check for poor connections or loose terminals at
the U phase motor current sensor and the M C M . B
3. Turn the ignition switch OFF.
4. Turn the battery module switch OFF (see page 12-4).
5. Remove the IPU lid (see page 12-140).
6. Disconnect the U phase motor current sensor 3P
connector.
7. Turn the ignition switch ON (II). Measure voltage
between U phase motor current sensor 3P
connector terminals No. 1 and No. 2.
U P H A S E MOTOR C U R R E N T S E N S O R
3P C O N N E C T O R
V C C I U (WHT)
S G I U (BLK)
Wire side of female t e r m i n a l s
Is thereabout 5 V?
YES—Replace the U phase m o t o r current sensor
(see page 12-143), then go to step 11.
N O — G o t o step 8.
8. Turn the ignition switch OFF.
9. Disconnect M C M connector A (31P).
10. Check for continuity between U phase motor
current sensor 3P connector t e r m i n a l No. 2 and
M C M connector terminal A15.
MCM CONNECTOR A (31P)
U PHASE MOTOR
C U R R E N T S E N S O R
3P C O N N E C T O R
1 2
3
4
5 6 7
8 9
1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1
2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1
S G I U (BLK)
W i r e side of f e m a l e terminals
S G I U (BLK)
2
3
Wire side of female t e r m i n a l s
Is there continuity?
Y E S — G o t o step 17.
NO—Repair open in the w i r e between the U phase
motor current sensor and the M C M (A15), then go
to step 11.
11. Turn the ignition switch OFF.
12. Reconnect all connectors.
13. Reinstall the IPU lid (see page 12-140), then turn the
battery module switch ON (see page 12-4).
14. T u r n t h e i g n i t i o n s w i t c h ON (II).
15. Reset the M C M (see page 12-6).
16. Check for T e m p o r a r y DTCs or DTCs w i t h the HDS.
Are any Temporary DTCs or DTCs indicated?
YES—If DTC P0A5F is indicated, check for poor
connections or loose terminals at the U phase
motor current sensor and the M C M , then go to
step 1. If any other Temporary DTCs or DTCs are
indicated, go to the indicated D T C s
troubleshooting.
NO—Troubleshooting is complete. •
(cont'd)
12-47