AutoCodes – Jeep – P1CA4 Jeep

P1CA4 Jeep Code - Gear Shift Position Sensor 4 Circuit Low

Quick Answer

This diagnostic compares the output signal of the sensor to threshold values of normal operations. Common causes include Faulty Gear Shift Position Sensor 4, Gear Shift Position Sensor 4 harness is open or shorted, Gear Shift Position Sensor 4 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: P1CA4 Jeep indicates Gear Shift Position Sensor 4 Circuit Low.
Common causes: Common causes include Faulty Gear Shift Position Sensor 4, Gear Shift Position Sensor 4 harness is open or shorted, Gear Shift Position Sensor 4 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 989

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1CA4 Jeep Description

This diagnostic compares the output signal of the sensor to threshold values of normal operations. When the signal is out of range the diagnostic will be considered failing. The sensor is mounted next to the 6th gear engagement actuator to detect a linear movement of the piston. For this purpose a permanent magnet is mounted on the piston which is moved over a complete travel stroke. The magnet position generates a saturation area in the internal ferromagnetic core of the sensor which is transformed to an output position signal. The sensor provides an output signal with Pulse Width Modulation (PWM) at a fixed frequency and duty cycle proportional to the piston position of the actuator.

OBDII Code P1CA4 Jeep - Gear Shift Position Sensor 4 Circuit Low - AutoCodes.com — P1CA4 Jeep Code - Gear Shift Position Sensor 4 Circuit Low

What does this mean?

What are the Possible Causes of the DTC P1CA4 Jeep?

Faulty Gear Shift Position Sensor 4
Gear Shift Position Sensor 4 harness is open or shorted
Gear Shift Position Sensor 4 circuit poor electrical connection
Faulty Transmission Control Module (TCM)

How to Fix the DTC P1CA4 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 P1CA4 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.

Need more information about the P1CA4 Jeep code?

Need more information on how to fix the P1CA4 Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

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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.

Frequently Asked Questions about P1CA4 Jeep Code

What does the OBDII code P1CA4 mean for my Jeep?

The OBDII code P1CA4 indicates a problem with the Gear Shift Position Sensor 4 Circuit, specifically that the circuit is reading low voltage or an open circuit.

What are the common symptoms of the P1CA4 code?

Common symptoms include issues with gear shifting, the check engine light being illuminated, and potential erratic behavior of the transmission.

What can cause the P1CA4 code to trigger?

Causes may include a faulty gear shift position sensor, damaged wiring or connectors in the circuit, or issues with the transmission control module.

How can I diagnose the P1CA4 code?

Start by visually inspecting the wiring and connectors for damage, testing the gear shift position sensor for proper function, and using a multimeter to check voltage levels in the circuit.

Is it safe to drive my Jeep with the P1CA4 code?

While it may be safe for short distances, driving with this code can lead to transmission issues and should be addressed promptly to avoid further damage.

What repairs are typically needed to fix the P1CA4 code?

Repairs may involve replacing the gear shift position sensor, repairing or replacing damaged wiring, or reprogramming the transmission control module if necessary.

Can I reset the P1CA4 code after repairs?

Yes, once repairs are completed, you can reset the code using an OBDII scanner. However, ensure that the underlying issue is fixed to prevent the code from reappearing.

How much does it typically cost to repair the P1CA4 code?

Repair costs can vary widely, but replacing the gear shift position sensor may range from $100 to $300, depending on labor charges and parts prices.

What should I do if the P1CA4 code keeps coming back?

If the code keeps returning, itâ€™s important to have a professional technician perform a thorough diagnostic to identify any underlying issues that may not have been addressed.