Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Central Processing Unit (CPU)
With CPU connectors connected, measure voltage at specified terminal of CPU connectors. SeeFig 1 . See CPU TERMINAL VOLTAGES . If voltages are not as specified, replace CPU.
| Terminal | Application | Test Condition | Volts | ||
|---|---|---|---|---|---|
| 1K | Door/Trunk Opener Relay | Other | 12 | ||
| 1O | Door/Trunk Opener Relay | Other | Greater Than Zero | ||
| 1P | Keyless Unit 1 | Other | Zero | ||
| 2F | Pass. Door Lock Actuator | Locked | Approx. 5 | ||
| 2F | Pass. Door Lock Actuator | Unlocked | Zero | ||
| 2H | Driver Door Lock Actuator | Locked | Approx. 5 | ||
| 2H | Driver Door Lock Actuator | Unlocked | Zero | ||
| 2I | Keyless Unit 2 | Other | Zero | ||
| 2J | Rear Door Lock Actuator | Locked | Approx. 5 | ||
| 2J | Rear Door Lock Actuator | Unlocked | Zero | ||
| 2L | Door Key Cylinder Switch | Locked | 2.5 | ||
| 2L | (Passenger Side) | Unlocked | Zero | ||
| 2L | (Passenger Side) | Other | 5 | ||
| 2P | Door Lock Switch | Locked | 2.5 | ||
| 2P | Door Lock Switch | Unlocked | Zero | ||
| 2P | Door Lock Switch | Other | 5 | ||
| 2R | Door Key Cylinder Switch | Unlocked | Zero | ||
| " | (Driver Side) | Other | 5 | ||
| 3C | Door Lock Timer Unit (Lock) | Constant | (1) 12 | ||
| 3F | Door Lock Timer Unit (Unlock) | Constant | (1) 12 | ||
|
|||||
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.