Honda 2004 Odyssey Service Manual page 573

EVAP System
DTC Troubleshooting (cont'd)
11. Measure voltage between FTP sensor 3P connector
terminals No. 2 and No. 3.
FTP SENSOR 3P CONNECTOR
SG2 (GRN/BLK)
SG2 (GRN/YEL)*
Wire side of female terminals
Is there about 5 V ?
YES Replace the FTP sensor.
NO Go to step 12.
12. Turn the ignition switch OFF.
13. Disconnect PCM connector A (32P).
14. Check for continuity between FTP sensor 3P
connector terminal No. 3 and body ground.
FTP SENSOR 3P CONNECTOR
Wire side of female terminals
Is there continuity?
YES Repair short in the wire between the FTP
sensor and the PCM (A29).
NO Substitute a known-good PCM and recheck
(see page 11-5). If normal voltage is indicated,
replace the original PCM.
11-264 11-264
FTP (LT GRN)
FTP (LT GRN)
DTC P0452 '01 Model:
Low Voltage
1. Check the vacuum lines at the FTP sensor for
misrouting, leakage, breakage, and clogging.
Are the vacuum lines OK ?
YES Go to step 2.
NO Repair or replace vacuum lines as
necessary.
2. Reset the PCM (see page 11-4).
3. Remove the fuel fill cap.
4. Turn the ignition switch ON (II).
5. Monitor FTP sensor voltage with the HDS, or
measure voltage between body ground and PCM
connector terminal E28.
PCM CONNECTOR E (31P)
Wire side of female terminals
Is there about 2.5 V ?
YES Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the FTP sensor and the PCM.
NO Go to step 6.
FTP Sensor Circuit
FTP (LT GRN)