2003 impala door locks

i am tryng to get the doorlocks to one a 2003 chevy impala locks.can someone tell e how to wire up the relays to get the door locks to workL67 Master (GM 3.8 SC)

sO DO I NEED TO USE RELAYS AND IF SO HOW DO I WIRE THEM UPL67 Master (GM 3.8 SC)

depends on if your rs has ground outs - and if they send a good solid ground or not - try like KarTuneMan says 1st before going to the trouble of setting up relays

There is no resistance for lock, just unlock. What kind of alarm is it?Mike M2

Tech Manager

CS Dealer Services

The lock/unlock wire is ORANGE / Black and can be found in the gray 24 pin connector of the BCM in cavity B3. You need a ground pulse through a 480 ohm resistor to lock the doors and a ground pulse to unlock the doors. Don't use diodes inline as they add resistance to the circuit. If your unit has negative door lock/unlock outputs, connect the units unlock wire directly to the ORANGE / black wire. Connect the units lock wire to terminal #85 of a relay. Terminal # 86 to a fused battery source (12 volts +), Terminal # 30 to a good ground, Terminal # 87 to one end of 480 ohm resistor and the other end of the resistor to the ORANGE / black wire. If your car has a factory alarm, then a bit more wiring will be needed to arm/disarm it.sparky