Honda 2004 Odyssey Service Manual page 1013

A/T Gear Position Indicator
D Indicator Circuit Troubleshooting (cont'd)
15. Disconnect PCM connector B (25P).
16. Check for continuity between PCM connector
terminals B20 and body ground, and between B22
and body ground.
PCM CONNECTOR B (25P)
LG1 (BRN/YEL)
Wire side of female terminals
Is there continuity between ground and each
terminal?
YES Go to step 17.
NO Repair open in the wire(s) between PCM
connector terminal B20, B22, and ground (G101), or
repair poor ground (G101).
17. Turn the ignition switch ON (II).
18. Measure the voltage between PCM connector
terminals B1 and B22, and between B9 and B20.
PCM CONNECTOR B (25P)
IGP1 (YEL/BLK)
IGP2 (YEL/BLK)
LG1 (BRN/YEL)
Wire side of female terminals
Is there battery voltage?
YES Go to step 19.
NO Repair open or short in the wire between PCM
connector terminal B1 or B9 and the PGM-FI main
relay.
14-400
LG2 (BRN/YEL)
LG2 (BRN/YEL)
19. Turn the ignition switch OFF.
20. Reconnect PCM connector B (25P).
21. Connect the digital multimeter between PCM
connector terminals A14 and B20 or B22.
PCM CONNECTORS
A (32P)
LG1 (BRN/YEL)
D5 IND (GRN/BLK)
Wire side of female terminals
22. Turn the ignition switch ON (II).
Is there voltage f or at least 2 seconds?
YES Check for an open in the wire between PCM
connector terminal A14 and the gauge assembly. If
the wire is OK, check for a faulty D indicator bulb or
a faulty printed circuit board in the gauge
assembly.
NO Go to step 23.
B (25P)
LG2 (BRN/YEL)