AutoCodes – Jeep – P1598 Jeep

P1598 Jeep Code - A/C Pressure Sensor High Input Conditions

Quick Answer

With the engine running and the A/C energized, the Powertrain Control Module (PCM) will set the Diagnostic Trouble Code (DTC) when the A/C Pressure Sensor signal at the PCM goes above 4.92 volts. Common causes include Faulty A/C Pressure Sensor, A/C Pressure Sensor harness is open or shorted, A/C Pressure Sensor electrical circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1598 Jeep indicates A/C Pressure Sensor High Input Conditions.
Common causes: Common causes include Faulty A/C Pressure Sensor, A/C Pressure Sensor harness is open or shorted, A/C Pressure Sensor electrical circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 8,461

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

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Table of contents Created and updated by William Orellana on Aug 16, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1598 Jeep Description

With the engine running and the A/C energized, the Powertrain Control Module (PCM) will set the Diagnostic Trouble Code (DTC) when the A/C Pressure Sensor signal at the PCM goes above 4.92 volts.

OBDII Code P1598 Jeep - A/C Pressure Sensor High Input Conditions - AutoCodes.com — P1598 Jeep Code - A/C Pressure Sensor High Input Conditions

What does this mean?

What are the Possible Causes of the DTC P1598 Jeep?

Faulty A/C Pressure Sensor
A/C Pressure Sensor harness is open or shorted
A/C Pressure Sensor electrical circuit poor electrical connection

How to Fix the DTC P1598 Jeep?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1598 Jeep code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.