Honda 2004 Odyssey Service Manual page 561

EGR System
DTC Troubleshooting (cont'd)
13. Turn the ignition switch OFF.
14. At the sensor side, measure resistance between
EGR valve 6P connector terminals No. 1 and No. 2.
EGR VALVE 6P CONNECTOR
EGRP
Terminal side of male terminals
Is there continuity or resistance of 100 k
more?
YES Replace the EGR valve.
NO Go to step 15.
15. Measure resistance between EGR valve 6P
connector terminals No. 1 and No. 3.
EGR VALVE 6P CONNECTOR
EGRP
Terminal side of male terminals
Is there 100 k or more?
YES Replace the EGR valve.
NO Go to step 16.
16. Reconnect the EGR valve connector.
17. Turn the ignition switch ON (II).
11-252
SG2
or
VCC2
18. Measure voltage between PCM connector
terminals A16 and A28.
PCM CONNECTOR A (31P)
EGRP
(WHT/BLK)
Wire side of female terminals
Is there about 1.2 V ?
YES Go to step 21.
NO Go to step 19.
19. Turn the ignition switch OFF.
20. Check for continuity between PCM connector
terminal A16 and body ground.
PCM CONNECTOR A (31P)
Wire side of female terminals
Is there continuity?
YES Repair short in the wire between the EGR
valve and PCM (A16).
NO Repair open in the wire between the EGR
valve and PCM (A16).
21. Turn the ignition switch OFF.
22. Disconnect the EGR valve 6P connector.
SG2
(GRN/BLK)
EGRP
(WHT/BLK)