2003 Chevy Impala Ignition Wiring

If all of your fuses are good your 2003 chevrolet impala may have a factory amp that needs to be turned on by your after market radio. As stated before both of these signals are critical for the ignition control module to start the car to start sparking the ignition coils. The car radio amplifier trigger wire has to be wired up to turn on your factory amplifier to output sound from your speakers.

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First access the ignition switch through the center part of the dash where the radio and climate control are.

2003 chevy impala ignition wiring. Double check that your 2003 chevrolet impala amp turn on wire is connected. A wiring diagram is a streamlined standard pictorial representation of an electrical circuit. Although an oscilloscope is the best way to check for the pulses from the crankshaft position sensor 3x ckp and 18x ckp to the ignition control module there s another way that i ve used successfully. Listed below is the vehicle specific wiring diagram for your car alarm remote starter or keyless entry installation into your 2003 2005 chevrolet impala this information outlines the wires location color and polarity to help you identify the proper connection spots in the vehicle.

Wellborn collection of 2003 chevy impala wiring diagram. Then cut the wire. It reveals the parts of the circuit as simplified shapes as well as the power and also signal connections between the gadgets. Then locate a thin yellow wire attached to the ignition switch.

Varify the car starts again then tape up the wire you cut put everything back together and there you go. The 2003 chevrolet impala has 9 nhtsa complaints for the electrical system ignition at 82 435 miles average. January 22 2019 by larry a.