How do you bypass VATS with a resistor?

Here is what the documentation says. Each point links to its source; details depend on your exact computer, harness and transmission.

• VATS (Vehicle Anti-Theft System) is GM's umbrella term for its factory anti-theft families: PASS-Key I/II/III (key-based systems) and Passlock (lock-cylinder sensor systems), all of which gate engine start/running through the PCM. (General Motors (via NHTSA / govinfo.gov))
• 1993-2002 era: PASS-Key II locks out starting for three to four minutes after an invalid key is detected, to block repeated start attempts. (General Motors (via NHTSA / govinfo.gov))
• Passlock I and II are key-based, fuel-shutdown anti-theft systems requiring the key cylinder to be mechanically turned with a key: the Passlock I R-Code goes to the instrument panel cluster (IPC), while Passlock II sends it directly to the BCM, which houses the decoder. (Directed Electronics)
• Passlock password relearn takes about 30 minutes: three key-ON-for-10-minutes cycles with the security light extinguishing each time; most cars learn in one cycle but most trucks need all three. (Cardone ProTech)
• Passkey II relearn is three rounds of key ON for about 11 minutes (until the security light stops flashing) plus 30 seconds OFF, with a fully charged battery, and both BCM and PCM must be working and communicating. (Cardone ProTech)
• 1997+: Passkey III relearn uses three 10-minute key-ON cycles with a master key, erases all previously learned keys, and additional keys must be inserted and turned ON within 10 seconds of removing the prior key. (Cardone ProTech)

Confirm against the instructions for your exact parts before wiring. More: VATS / anti-theft in our tuning guide.