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The brake warning light and ABS light both come on at

Customer Question
The brake warning light...

The brake warning light and ABS light both come on at start-up. Allowing the system to pump up for a minute or two before a cold start causes the ABS light to go off. The brake light remains on and the brakes are very stiff.

Mechanic's Assistant: Have you checked the brake fluid? Does the light stay on steady or is it intermittent?

Brake light stays on. ABS light only on at start-up.

Mechanic's Assistant: What is the model/year of your Jaguar?

1989 Jaguar XJS v12

Mechanic's Assistant: Are you fixing your XJS V12 yourself? What have you tried so far?

I haven't tried to fix it just yet...but, the owner I bought it from had replaced the ABS ECM with one from a later model.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Thats about it.

Submitted: 14 days ago.Category: Jaguar
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Customer reply replied 14 days ago
Brake fluid seems ok...and the brake light stays on steady...but, the ABS warning light goes off a minute or two after start-up.
Answered in 1 day by:
8/6/2018
Jaguar Mechanic: eric remington,
 replied 13 days ago
eric remington
Category: Jaguar
Satisfied Customers: 1,075
Experience: mechanic/service advisor at topline auto
Verified

dOES IT HAVE A VACUUM BOOSTER OPERATED BRAKE ASSIST? GET ME VIN NUMBER PLEASE

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