[Shotimes] parking brake idiot light

[Steve Weinrich]

Ian,

Only three things are supposed to activate the BRAKE indicator during normal
vehicle operation.

1.  The E-brake switch is activated

2.  The float switch in the reservoir senses low fluid level.

3.  The third time is when the ignition switch is in the START position.

On DRL-equipped vehicles, the e-brake switch signal is routed through the
DRL module (DRL Disable Function) via a switching diode, then on to the
lamp.  On non DRL-equipped vehicles that were DRL-capable, there should be a
plug installed in the DRL connector that properly routes the switch signal
back to the BRAKE indicator.

In all cases, the input to the BRAKE light is a ground signal as the
opposite side of the bulb is hot when the ignition is in START or RUN.

My guess is that either your e-brake switch is flaky, misadjusted, or the
wire lead has developed an intermittent open.  You can test it by grounding
the connector, the flexing and wiggling the wire to see it the light
flickers or goes out.

Steve


----- Original Message ----- 
From: "Ian Fisher" <dataflash@yahoo.com>
To: <shotimes@autox.team.net>
Sent: Wednesday, December 15, 2004 9:58 PM
Subject: [Shotimes] parking brake idiot light


> My red brake light does work (it'll illuminate when
> the fluid is low in the MC) and once in awhile it will
> illuminate when the e-brake is engaged. I figured that
> the switch is faulty. However, I was discussing this
> with Bill Murray who said that he had also replaced
> the switch on his car (also a 93mtx) and that it only
> worked a few times before developing the symptoms that
> mine displays. Is there something that can cause a
> short in the switch that we should be looking out for?
> I would like to get this issue resolved as I don't
> enjoy driving around with my e-brake on. :)
>
> Ian
>
>
>
>
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