BRAKE LIGHT ON INSTRUMENT CLUSTER


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BRAKE LIGHT ON INSTRUMENT CLUSTER

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Auto Repair Home>> Automotive Repair>> Car Troubleshooting

skottesd
New User

Mar 25, 2012, 3:51 PM

Post #1 of 3 (2579 views)

BRAKE LIGHT ON INSTRUMENT CLUSTER	Sign In

2001 Dodge Stratus 2.4 ltr dohc sedan over 160,000 miles.
The "brake" light on my dash comes on with a ding-ding about 30 seconds after the engine is started. The pads / calipers / master cylinder and brake fluid all look fine and I adjusted the parking brake. What else makes this come on?

Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Mar 25, 2012, 4:16 PM

Post #2 of 3 (2571 views)

Re: BRAKE LIGHT ON INSTRUMENT CLUSTER	Sign In

Assuming the charging light isn't on, but if the alternator's regulator turns on the charging system light, the brake warning indicator will come on too.

If the brake warning lamp is on and the charging lamp is off, there are two circuits that can cause this to occur. One is the circuit that runs to the parking brake switch. If the switch is closed when the parking brake is off or the circuit is shorted to grounded, that will cause the warning lamp to come on.

The other circuit would be the brake master cylinder level switch circuit. If the switch is grounding the circuit because the brake fluid is low, the switch is stuck closed, float is stuck down, or the circuit is shorted to ground that will cause the lamp to come on too.

When the brake warning lamp is illuminated start diagnosing this by disconnecting the master cylinder level switch connector. See if the lamp goes out. If it goes out, you need to replace the master cylinder level switch/reservoir. If it doesn't go off, come back here for more information.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Mar 25, 2012, 4:29 PM)

skottesd
New User

Apr 1, 2012, 4:01 PM

Post #3 of 3 (2479 views)

Re: BRAKE LIGHT ON INSTRUMENT CLUSTER	Sign In

The problem was the level switch. Thanks for the help; you're the best!

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