SOLVED: Need a wiring diagram for 2001 impala - Fixya need a wiring diagram for 2001 impala having issues with sir restraint system and need to trace wiring from fuse box - Chevrolet 2001 Impala question. Search Fixya with a 3/32 in (2) tip, and 3/4 in (20mm) in length, into the access hole of the ignition lock cylinder. Turn the ignition lock cylinder to Diagram of 2001 impala ls ignition switch replacement - Fixya diagram of 2001 impala ls ignition switch replacement i need to replace the ignition switch and can't figure out - Chevrolet Impala question. Search Fixya The hole is located at 4 o'clock if we agree that the 2 wiring harness plugs are at 6 o clock and its 1 and 1/4 inches below the face of ignition cylinder. 2001 Impala Block Wiring Diagram. 2001 Impala Ignition This is the 2001 Impala Block Wiring Diagram. 2001 Impala Ignition Switch of a image I get from the 2003 Impala Stock Radio Wiring Diagram package. You can save this pics file to your personal computer. Please right click on the image and save the illustration. 2001 Chevrolet Impala Electrical System: Ignition: Switch The contact owns a 2001 Chevrolet Impala. The contact received a recall notice for NHTSA campaign number: 14V10000 (electrical system). The vehicle was taken to the dealer who replaced the ignition switch as part of the recall remedy. 2001 Chevrolet Impala Electrical System: Ignition: Module The 2001 Chevrolet Impala has 4 NHTSA complaints for the electrical system:ignition:module at 15,500 miles average.