Charging System Voltage Too High
Table of contents
P1594 JEEP Possible Causes
- Faulty Ambient/Battery temperature sensor
- Faulty Alternator
- Alternator harness is open or shorted
- Alternator electrical circuit poor electrical connection
How do I fix code P1594 JEEP?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1594 JEEP code
The cost of diagnosing the P1594 JEEP code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1594 JEEP Description
When the Powertrain Control Module (PCM) regulates the generator field and the there are no detected field problems but the voltage output does not decrease, the P594 code will set.