AutoCodes – Land Rover – P1535 Land Rover

P1535 Land Rover Code - A/C Compressor Request Malfunction

Quick Answer

Request for Air Condition (A/C) operation is signaled to the Heating and Ventilation Air Conditioning (HVAC) control unit and Engine Control Module (ECM) when the A/C control panel switch is pressed, completing a ground path. Common causes include Faulty Air Condition (A/C) Compressor, Air Condition Compressor harness is open or shorted, Air Condition Compressor 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: P1535 Land Rover indicates A/C Compressor Request Malfunction.
Common causes: Common causes include Faulty Air Condition (A/C) Compressor, Air Condition Compressor harness is open or shorted, Air Condition Compressor 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 1,036

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jan 19, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1535 Land Rover Description

Request for Air Condition (A/C) operation is signaled to the Heating and Ventilation Air Conditioning (HVAC) control unit and Engine Control Module (ECM) when the A/C control panel switch is pressed, completing a ground path. Battery voltage to A/C control panel switch is supplied via ECM connector. When an A/C operation request is received, the A/C compressor clutch will be engaged based on other operating requirements. If there is an A/C request failure, the A/C system will not work even if all other requirements are met.
The A/C compressor clutch relay is a 4-pin normally open relay located in the engine compartment fuse box. When the ECM grounds the A/C clutch relay coil the switching contacts close o allow the relay contacts to close and the A/C clutch to receive battery voltage. When the ECM opens the ground path, the clutch relay will be de-energized and shut down the A/C compressor clutch. Battery voltage to the A/C clutch relay is supplied via a fuse. Battery voltage to the A/C clutch relay coil is supplied from the main relay. A/C clutch relay coil ground is supplied via ECM. When the relay has energized the output from the switching contacts goes directly to the A/C compressor clutch. If there is an A/C clutch relay failure, the A/C system will not work even if all other requirements are met. If Diagnostic Trouble Code (DTC) P1535 is set, there is an A/C compressor request malfunction when A/C operation is first requested when A/C is not in standby mode.

OBDII Code P1535 Land Rover - A/C Compressor Request Malfunction - AutoCodes.com — P1535 Land Rover Code - A/C Compressor Request Malfunction

What does this mean?

What are the Possible Causes of the DTC P1535 Land Rover?

Faulty Air Condition (A/C) Compressor
Air Condition Compressor harness is open or shorted
Air Condition Compressor circuit poor electrical connection

How to Fix the DTC P1535 Land Rover?

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 P1535 Land Rover 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 P1535 Land Rover 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 P1535 Land Rover Code

1. What are the common symptoms of OBDII code P1535 in a Land Rover related to A/C Compressor Request Malfunction?

- Common symptoms include the A/C system not cooling properly, the A/C compressor not engaging, and the vehicle's interior not reaching the desired temperature.

2. What are some possible causes of OBDII code P1535 in a Land Rover related to A/C Compressor Request Malfunction?

- Possible causes include a faulty A/C compressor, issues with the A/C compressor clutch, wiring problems, or a malfunctioning A/C pressure switch.

3. How can I diagnose OBDII code P1535 in a Land Rover related to A/C Compressor Request Malfunction?

- Diagnosing the issue involves checking the A/C compressor operation, inspecting the wiring and connectors, and testing the A/C pressure switch for proper functionality.

4. What are the recommended repair tips for fixing OBDII code P1535 in a Land Rover related to A/C Compressor Request Malfunction?

- Repair tips include checking and repairing any damaged wiring, replacing a faulty A/C compressor or compressor clutch, and ensuring proper refrigerant levels in the A/C system.

5. Can OBDII code P1535 in a Land Rover related to A/C Compressor Request Malfunction be reset without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it is important to address the root cause to prevent the issue from recurring and ensure proper A/C system operation.

6. How serious is OBDII code P1535 in a Land Rover related to A/C Compressor Request Malfunction?

- While the code may not directly affect the drivability of the vehicle, it can lead to discomfort due to a malfunctioning A/C system, especially in hot weather.

7. Is it safe to continue driving with OBDII code P1535 in a Land Rover related to A/C Compressor Request Malfunction?

- It is generally safe to drive with this code, but it is recommended to address the issue promptly to avoid further damage to the A/C system components.

8. Can a DIY enthusiast fix OBDII code P1535 in a Land Rover related to A/C Compressor Request Malfunction?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and fix the issue, especially if it involves simple repairs like replacing a fuse or relay.

9. How much does it typically cost to repair OBDII code P1535 in a Land Rover related to A/C Compressor Request Malfunction?

- The cost can vary depending on the specific cause of the issue, but it may range from a few hundred to a thousand dollars, including parts and labor.

10. Can weather conditions impact the occurrence of OBDII code P1535 in a Land Rover related to A/C Compressor Request Malfunction?

- Extreme temperatures or high humidity can sometimes exacerbate A/C system issues related to this code, so it's important to address any malfunctions promptly, especially in hot climates.