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P0703 Diagnostic Trouble Code Discussion for March 2011

Brake Switch Circuit 2 Malfunction


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Trouble Ticket Help Requests for DTC P0703
Help Request Posted
1995 Buick Park Avenue 3.8L Poor Fuel Economy VIN: 1G4CW52K0S
P0703: Brake Switch Circuit. Diagnose any of the mentioned codes and come up with bad ECM replaced the ECM and all the same symtoms and codes. Scan data shows a bad Quad Driver 1. Disconnected and checked all wiring to the ECM and sensors/actuators from the ECM and all check fine. I can g...
March 29, 2011
1995 Buick Park Avenue 3.8L Misfire VIN: 1G4CW52K1S
P0703: brake sw ckt. ... back through the intake on acceleration. There is NO Check Engine light on, but it works during key on bulb check and a total of 19 DTC's in current codes, none in history codes. Cleared codes and they all came back. p0703, p0501, p0755, p1361,'p0101, p161...
March 29, 2011
1995 Buick Park Avenue 3.8L Poor Fuel Economy VIN: 1G4CW52K0S
P0703: Brake Switch Circuit. Diagnose any of the mentioned codes and come up with bad ECM replaced the ECM and all the same symtoms and codes. Scan data shows a bad Quad Driver 1. Disconnected and checked all wiring to the ECM and sensors/actuators from the ECM and all check fine. I can g...
March 29, 2011
1995 Buick Park Avenue 3.8L Misfire VIN: 1G4CW52K1S
P0703: brake sw ckt. ... back through the intake on acceleration. There is NO Check Engine light on, but it works during key on bulb check and a total of 19 DTC's in current codes, none in history codes. Cleared codes and they all came back. p0703, p0501, p0755, p1361,'p0101, p161...
March 29, 2011