Honda 2004 Odyssey Service Manual page 483

PGM-FI System
DLC Circuit Troubleshooting (cont'd)
7. Disconnect PCM connector A (32P).
8. Check for continuity between DLC terminal No. 7
and body ground.
DATA LINK CONNECTOR (DLC)
Terminal side of female terminals
Is there continuity?
YES Repair short to ground in the wire between
DLC terminal No. 7 and the PCM (A21).
NO Go to step 9.
9. Check for continuity between DLC terminal No. 7
and PCM terminal A21.
DATA LINK CONNECTOR (DLC)
K-LINE (GRY)
Terminal side of female terminals
PCM CONNECTOR A (32P)
Wire side of female terminals
Is there continuity?
YES Substitute a known-good PCM and recheck
(see page 11-5). If the symptom/indication goes
away with a known-good PCM, replace the original
PCM.
NO Repair open in the wire between DLC terminal
No. 7 and the PCM (A21).
11-174
10. Turn the ignition switch OFF.
11. Disconnect PCM connector A (32P).
12. Turn the ignition switch ON (II).
13. Measure voltage between DLC terminals No. 5 and
K-LINE
(GRY)
K-LINE (GRY)
No. 7.
DATA LINK CONNECTOR (DLC)
GND
(BRN/YEL)
Terminal side of female terminals
Is there 0 V ?
YES Substitute a known-good PCM and recheck
(see page 11-5). If the symptom/indication goes
away with a known-good PCM, replace the original
PCM.
NO Repair short to power in the wire between
DLC terminal No. 7 and PCM (A21).
K-LINE
(GRY)