Honda 2004 Odyssey Service Manual page 1270

DTC 54: ABS Fail-safe Relay
1. Check the ABS F/S (20A) fuse in the under-hood
fuse/relay box, and reinstall the fuse if it is OK.
Is the f use OK ?
YES Go to step 2.
NO Replace the fuse, and recheck.
2. Reinstall the fuse, and turn the ignition switch ON
(II).
Does the f use blow?
YES Repair short to body ground in the wire
between the ABS fail-safe relay, pump motor relay,
and modulator unit.
NO Go to step 3.
3. Check the ABS fail-safe relay in the multi-relay box
(see page 22-88). The wire colors of the ABS fail-
safe relay connector are WHT/GRN, BRN/BLK, BLK,
and YEL/GRN.
Is the relay OK ?
YES Leave the ABS fail-safe relay removed, and
go to step 4.
NO Replace the ABS fail-safe relay.
4. Measure the voltage between the ABS fail-safe
relay connector terminal No. 1 and body ground.
ABS FAIL-SAFE RELAY CONNECTOR
B (WHT/GRN)
Terminal side of female terminals
Is there battery voltage?
YES Go to step 5.
NO Repair open in the wire between the under-
hood fuse/relay box and the ABS fail-safe relay.
5. Connect the ABS fail-safe relay connector terminal
No. 1 to No. 2 with a jumper wire.
ABS FAIL-SAFE RELAY CONNECTOR
B (WHT/GRN)
JUMPER WIRE
SOLENOID
(BRN/BLK)
Terminal side of female terminals
6. Disconnect the modulator unit connector.
7. Measure the voltage between terminal No. 10 and
body ground.
MODULATOR UNIT CONNECTOR
SOLENOID
(BRN/BLK)
Terminal side of female terminals
Is there battery voltage?
YES Go to step 8.
NO Repair open in the wire between the ABS fail-
safe relay and the modulator unit.
8. Remove the jumper wire from the ABS fail-safe
relay connector.
(cont'd)
19-69