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.
Powertrain Control Module (Pcm)
Network Diagnostic Trouble Codes (DTCs) (U-codes) are often a result of intermittent concerns such as damaged wiring or low battery voltage occurrences. Additionally, vehicle repair procedures, such as module reprogramming, often set network Diagnostic Trouble Codes (DTCs). Replacing a module to resolve a network DTC is unlikely to resolve the concern. To prevent repeat network DTC concerns, inspect all network wiring, especially connectors. Test the vehicle battery.
REFER to: Battery .
| DTC | Description | Action |
|---|---|---|
| All Other Diagnostic Trouble Codes (DTCs) | - | Refer to ENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (HYBRID) . |
| P2183 | Engine Coolant Temperature Sensor 2 Circuit Range/Performance | GO to Pinpoint Test B |
| P2184 | Engine Coolant Temperature Sensor 2 Circuit Low | GO to Pinpoint Test B |
| P2185 | Engine Coolant Temperature Sensor 2 Circuit High | GO to Pinpoint Test B |
| P2186 | Engine Coolant Temperature Sensor 2 Circuit Intermittent/Erratic | GO to Pinpoint Test B |
| P2600 | Coolant Pump "A" Control Circuit Open | GO to Pinpoint Test C |
| P2601 | Coolant Pump "A" Control Circuit Performance/Stuck Off | GO to Pinpoint Test C |
| P2602 | Coolant Pump "A" Control Circuit Low | GO to Pinpoint Test C |
| P2603 | Coolant Pump "A" Control Circuit High | GO to Pinpoint Test C |
| P2682 | Engine Coolant Bypass Valve "A" Control Circuit Low | GO to Pinpoint Test D |
| P2683 | Engine Coolant Bypass Valve "A" Control Circuit High | GO to Pinpoint Test D |
| P26AB | Engine Coolant Bypass Valve "A" Stuck/Open | GO to Pinpoint Test D |
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.