P1281 JEEP Possible Causes
- Engine coolant level too low
- Faulty thermostat
How is the P1281 JEEP code repaired?
Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Technical Notes
Start by checking the coolant level, add coolant if the level is too low. If the problem persists, the thermostat may be faulty. Using an incorrect thermostat or coolant mixture could trigger the P1281 code.
Possible Symptoms
- Engine light on (or service engine soon warning light)
P1281 JEEP Meaning
The engine coolant temperature (ECT) is monitored while the engine is running. The P1281 code will be set if the engine coolant temperature does not reach 181 F (83 C) while driving for more than 3 minutes and less than an hour depending on engine load and starting temperature