Mechanics

LEXUS SC 300 BATTERY PROBLEM

1994 Lexus SC 300 • 145,000 miles

My Lexus sc300 having problems when I depress on the breaks all my electrical system shuts down and come back on. This problem only accrues when I depress on breaks. Please tell me what is causing this shut down to system.
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Guest
November 1, 2012.



It could be a bad ground somewhere causing the problem. If problem occurs only on hard braking, something could be loose and the braking is causing wires to sway and loose contact or a bare wire is being intermittently shorted due to the movement.

Not an easy job to find the source so I would suggest checking the battery terminals etc for clean and tight connections for a start.

KHLow2008
Nov 1, 2012.
Ensure wires are not dangling near brake pedal and being affected by the pedal during braking.

KHLow2008
Nov 1, 2012.