Honda Accord/ Odyssey ABS pump noise at start up.

[jaxson]

Hi ETCG, I watched your bleeding the coolant system of air video. You were doing it on a 95ish Accord. During the video you mentioned a noise that was the ABS pump. My 96 Odyssey makes that noise on start up for about 30 seconds or more then shuts off and the ABS light comes on the dash. Anyone have info? or is it a shot ABS pump. Can we fix it? Or What you think Thanks, This is my first time in the forums. Cheers!

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[Lorrin Barth]

Every time the vehicle is started the abs runs a self test. Hence the noise. If the abs flunks then the light. The most common problem is a broken wire in a wheel well but it could be a bad abs unit.

[richiepearce]

check multiplug on unit but i suspect you will need to get the codes.

[Its me]

Agree that there is something wrong with the ABS and code(s) need to be pulled. It is common on a Honda of this age that the accumulator on the pump goes bad.. They are pretty price (Around $300 to $400)

Jump the blue service connector under the glove box with a wire (or close to that region) and count the flashes on the ABS light…

Codes are:

1 The hydraulic pump motor is over-run
1-2 The hydraulic pump motor
1-3 Is a high pressure leak
1-4 The pressure switch
1-8 Accumulator of high pressure system
2-1 Circuit of handbrake warning lamp switch
3-1 Rotor teeth damaged on right hand front wheel speed sensor
3-2 Rotor teeth damaged on left hand front wheel speed sensor
3-4 Rotor teeth damaged on right hand rear wheel speed sensor
3-8 Rotor teeth damaged on left hand rear wheel speed sensor
3-12 Combination of different sizes of tires
4-1 Circuit of right hand front wheel speed sensor
4-2 Circuit of left hand front wheel speed sensor
4-4 Circuit of right hand rear wheel speed sensor
4-8 Circuit of left hand rear wheel speed sensor
5-4 Right hand rear wheel lock
5-8 Left hand rear wheel lock
6-1 Front fail safe relay
6-4 Rear fail safe relay
7-1 Right hand front, hydraulic modulator solenoid valve
7-2 Left hand front, hydraulic modulator solenoid valve
7-4 Rear, hydraulic modulator solenoid valve
8-1 Operation of the ABS
8-2 The ECU
8-4 Internal circuit of the ECU

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