Honda 2004 Odyssey Service Manual page 1278

ABS Control Unit Replacement
1. Remove the ABS control unit (A) on the driver's
side under the dash.
A
B
2. Disconnect the ABS control unit connectors (B).
3. Install the ABS control unit in the reverse order of
removal.
Wheel Sensor Inspection
1. Inspect the front and rear pulsers for chipped or
damaged teeth.
2. Measure the air gap between the wheel sensor and
pulser all the way around while rotating the pulser.
Remove the rear brake disc to measure the gap on
the rear wheel sensor. If the gap exceeds 1.0 mm
(0.04 in.), check for a bent suspension arm.
Standard:
Front: 0.5 1.0 mm (0.02 0.04 in.)
Rear: 0.2 1.1 mm (0.01 0.04 in.)
Front
0.5 1.0 mm
(0.02 0.04 in.)
Rear
0.2 1.1 mm
(0.01 0.04 in.)
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