Honda ACCORD HYBRID 2005 Service Manual page 778

IMA System
D T C T r o u b l e s h o o t i n g ( c o n t ' d )
DTC P1574 (68): Battery Module Temperature
Signal Circuit Malfunction
NOTE: If the IPU module fan duct is blocked, DTC P1574
m a y be detected.
1. Turn the ignition switch ON (II).
2. Check for Temporary DTCs or DTCs w i t h the HDS.
Is DTC PI448 Indicated?
YES—Do the t r o u b l e s h o o t i n g for DTC P1448
(see page 12-93).
N O — G o t o step 3.
3. Note the value of BATT. MDLS TEMP S 1 , BATT.
MDLS TEMP S2, and BATT. MDLS TEMP S3 in the
DATA LIST w i t h the HDS.
4. Check the SOC in the DATA LIST w i t h the HDS. If
the SOC is higher than 70 %, start the engine w i t h
the IMA motor several t i m e s until the SOC decreases
less than 7 0 % .
5. Reset the M C M (see page 12-6).
6. Compare the value of BATT. MDLS TEMP S 1 , BATT.
MDLS TEMP S2, and BATT. MDLS TEMP S3 in the
DATA LIST w i t h the HDS.
Did BATT. MDLS TEMP S1, BATT. MDLS TEMP
S2, and BATT. MDLS TEMP S3 change 1.0 °F
(0.5 °C)or more?
YES—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 . •
N O — G o t o step 6.
7. Check the IPU m o d u l e air duct and IPU m o d u l e fan
for disconnections, damage or obstructions.
Is the IPU module air duct or IPU module fan OK?
YES—Replace the battery m o d u l e (see page
12-146), then go t o step 7.
NO—Repair the IPU m o d u l e air duct or IPU m o d u l e
fan as necessary, then go t o step 8.
8. Turn the ignition switch ON (II).
9. Reset the M C M (see page 12-6).
10. 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—lf DTC P1574 is indicated, check for poor
connections or loose terminals at the battery
module and the M C M , then go to step 1. If any
other T e m p o r a r y DTCs or DTCs are indicated, go to
the indicated D T C s t r o u b l e s h o o t i n g .
NO—Troubleshooting is complete. •
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