Honda 2004 Odyssey Service Manual page 1918

Troubleshooting
Follow this procedure if the vehicle does not start, or
after rewriting the PCM with the HDS and the vehicle
does not start.
Note these items before troubleshooting:
• Due to the action of the immobilizer system, the
engine takes slightly more time to start than on a
vehicle without an immobilizer system.
• When the system is normal, and the proper key is
inserted, the indicator light comes on for 2 seconds,
then it will go off.
• If the indicator starts to blink after 2 seconds, or if the
engine does not start, repeat the starting procedure.
If the engine still does not start, continue with this
procedure.
1. Using the HDS, check for a diagnostic trouble code
(DTC) (see page 11-3).
Is DT C P1607 indicated?
YES Replace the PCM.
NO Go to step 2.
2. Turn the ignition switch ON (II) with the proper key.
3. Check to see if the immobilizer indicator light
comes on.
Does the indicator light blink?
YES Go to step 4.
NO Check for these problems:
• an open in the PNK wire between the gauge
assembly and PCM.
• a faulty immobilizer indicator light.
4. Disconnect the 5P connector (A) from the
immobilizer receiver unit (B).
5. Check for voltage between the No.1 terminal and
body ground with the ignition switch turned ON (II).
Is there battery voltage?
YES Go to step 6.
NO Check for these problems:
• a blown No. 1 (15A) fuse in the driver's under-
dash fuse/relay box.
• a blown No. 46 (15A) fuse in the under-hood
fuse/relay box.
• an open in the YEL/BLK wire between the PGM-FI
main relay and immobilizer receiver unit.
• a faulty PGM-FI main relay.
• an open between the PGM-FI main relay and
G101.
B
A
Wire side of
female terminals
(cont'd)
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