Here is how I wired the Heated Steering Wheel in my 2018 ZR2. You need to make and install a jumper wire between Connector X2 Slot #15 on the back fo the Fuse Block to Connector X203 Slot #12. The connectors are within 8 inches of each other so its a really short wire.
Making the jumper wire is the tricky part. I had installed the Factory Sport Bar that came with wiring harness for Brake Light. There are two terminals inside engine compartment on the included Sport Bar Harness. 1 terminal is used for Colorado's and 1terminal is used for Full Size trucks. I cut off the lead and terminal that was for the full sized trucks and not being used . That terminal fits PERFECT in The X2 connector. Now .. the X203 connector was a pain. I found an old terminal in my tool box .. no idea where it was from but it was small and female (both ends of jumper will be female as shown in first pic.).
The terminal I found was slightly too big so I took a small drill bit and carefully enlarged hole #12 in the X203 connector until I could slide the terminal in. Its being held in just by friction and male pin. I also jammed the end of a broken wooden toothpick in for safe measure. If somebody could find the tiny connector part # on the X203 connector .. it would make make the install even easier.
Making the jumper wire is the tricky part. I had installed the Factory Sport Bar that came with wiring harness for Brake Light. There are two terminals inside engine compartment on the included Sport Bar Harness. 1 terminal is used for Colorado's and 1terminal is used for Full Size trucks. I cut off the lead and terminal that was for the full sized trucks and not being used . That terminal fits PERFECT in The X2 connector. Now .. the X203 connector was a pain. I found an old terminal in my tool box .. no idea where it was from but it was small and female (both ends of jumper will be female as shown in first pic.).
The terminal I found was slightly too big so I took a small drill bit and carefully enlarged hole #12 in the X203 connector until I could slide the terminal in. Its being held in just by friction and male pin. I also jammed the end of a broken wooden toothpick in for safe measure. If somebody could find the tiny connector part # on the X203 connector .. it would make make the install even easier.