Dlc Circuit Troubleshooting - Honda 2004 Odyssey Service Manual

DLC Circuit Troubleshooting

NOTE:
• If the PCM does not communicate with the HDS, do
this troubleshooting.
• Check that the MIL circuit is normal, then do this
troubleshooting.
'99-00, '02-04 Models
1. Turn the ignition switch ON (II).
2. Measure voltage between data link connector (DLC)
terminal No. 16 and body ground.
DATA LINK CONNECTOR (DLC)
Terminal side of female terminals
Is there battery voltage?
YES Go to step 3.
NO Repair open in the wire between DLC terminal
No. 16 and the ACGS (15A) fuse in the under-hood
fuse/relay box.
3. Measure voltage between DLC terminal No. 4 and
No. 16.
DATA LINK CONNECTOR (DLC)
GND (BLK)
B (WHT/GRN)
Terminal side of female terminals
Is there battery voltage?
YES Go to step 4.
NO Repair open in the wire between DLC terminal
No. 4 and G501.
4. Measure voltage between DLC terminals No. 5 and
B
(WHT/GRN)
5. Measure voltage between DLC terminals No. 5 and
6. Turn the ignition switch off.
No. 16.
DATA LINK CONNECTOR (DLC)
GND (BRN/YEL)
B (WHT/GRN)
Terminal side of female terminals
Is there battery voltage?
YES Go to step 5.
NO Repair open in the wire between DLC terminal
No. 5 and G101.
No. 7.
DATA LINK CONNECTOR (DLC)
GND
(BRN/YEL)
Terminal side of female terminals
Is there 8.5 V or more?
YES Go to step 10.
NO Go to step 6.
K-LINE
(GRY)
(cont'd)
11-173