Honda ACCORD HYBRID 2005 Service Manual page 310

PGM-FI 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 P0098: IAT Sensor 2 Circuit High Voltage
1. Turn the ignition switch ON (II).
2. Check IAT SENSOR 2 in the DATA LIST w i t h the
HDS.
Is about - 40 °F (-40 °C) or less, or 4.90 V or
more indicated?
Y E S — G o t o step 3.
NO—Intermittent failure, system is OK at this t i m e .
Check for poor connections or loose terminals at
IAT sensor 2 and the PCM. •
3. Turn the ignition switch OFF.
4. Disconnect IAT sensor 2 2P connector.
5. Connect IAT sensor 2 2P connector terminals No. 1
and No. 2 w i t h a j u m p e r w i r e .
IAT S E N S O R 2 2P C O N N E C T O R
IAT2 ( R E D / Y E L )
1 2
S G 2 ( G R N / Y E L )
J U M P E R WIRE
Wire side of female t e r m i n a l s
6. Turn the ignition switch ON (II).
7. Check IAT SENSOR 2 in the DATA LIST w i t h the
HDS.
Is about - 40 °F (--40 °C) or less, or 4.90 V or
more indicated?
Y E S — G o t o step 8.
NO—Go to step 18.
8. Turn the ignition switch OFF.
9. Remove the j u m p e r w i r e f r o m IAT sensor 2 2P
connector.
10. Turn the ignition switch ON (II).
11. Measure voltage between IAT sensor 2 2P
connector terminal No. 1 and body g r o u n d .
IAT S E N S O R 2 2P C O N N E C T O R
IAT2 ( R E D / Y E L )
W i r e side of f e m a l e t e r m i n a l s
Is there about 5 V?
Y E S — G o t o step 12.
NO—Go to step 17.
12. Turn the ignition switch OFF.
13. J u m p the SCS line w i t h the HDS.
14. Disconnect PCM connector C (22P).
15. Connect IAT sensor 2 2P connector terminal No. 2
to body g r o u n d w i t h a j u m p e r w i r e .
IAT S E N S O R 2 2P C O N N E C T O R
S G 2 ( G R N / Y E L )
J U M P E R WIRE
Wire side of female t e r m i n a l s
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