Monday, May 24, 2010

How do I correct the code P0703 on a 2002 Dodge Stratus?

I ran a diagnostic on the car and it came back with the code. BRAKE SWITCH B CIRCUIT MALFUNCTION. I erased the code from the car, but it comes back. What do I need to do to fix this problem?

How do I correct the code P0703 on a 2002 Dodge Stratus?
The PCM monitors changes in input voltage from the brake switch. If the PCM does not detect PCM terminal 1AU voltage changes while alternately accelerating and decelerating 8 times, the PCM determines that brake switch circuit has malfunctioned.





• Brake switch malfunction


• Poor connection of brake switch connector or PCM connector


• Short to power supply in wiring harness between brake switch terminal D and PCM connector terminal 1AU


• Open circuit in wiring harness between brake switch terminal D and PCM connector terminal 1AU


• Open circuit in wiring harness between battery positive terminal and brake switch terminal A


• PCM malfunction


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