Honda 2004 Odyssey Service Manual page 1324

ABS DTC 54: ABS Fail-safe Relay
NOTE: Before doing this troubleshooting procedure,
check for TCS or PGM-FI DTCs, and repair the cause of
the DTCs.
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. 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, TCS relay, pump
motor relay, and modulator unit.
NO Go to step 3.
3. Check the ABS fail-safe relay in the ABS 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 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.
(cont'd)
19-123