how to check if the AC compressor is broken in my Toyota Corolla E170 (2013-2019)?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

562 words

Problem Statement

Learn how to diagnose and fix AC compressor issues in Toyota Corolla E170 (2013-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

HVAC

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Always recover refrigerant properly before removing AC components.

Symptoms

•AC not blowing cold air
•Unusual noises coming from the compressor area
•Compressor clutch not engaging
•High pressure in the AC system
•Check engine light illuminated (if applicable)

Diagnostic Steps

1
Check for any physical damage or leaks around the AC compressor and associated components.
2
Listen for any abnormal sounds such as grinding or squealing from the compressor.
3
Observe if the compressor clutch engages when the AC is turned on.
4
Use a refrigerant pressure gauge to check the high and low side pressures of the AC system.
5
Use an OBD-II scanner to check for any trouble codes related to the AC system.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Refrigerant pressure gauge
•Multimeter
•Socket set
•Torque wrench

Parts Required

•AC compressor (if faulty)
•Refrigerant
•Seals and O-rings (if necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check for any physical damage or leaks around the AC compressor and associated components.
2
Listen for any abnormal sounds such as grinding or squealing from the compressor.
3
Observe if the compressor clutch engages when the AC is turned on.
4
Use a refrigerant pressure gauge to check the high and low side pressures of the AC system.
5
Use an OBD-II scanner to check for any trouble codes related to the AC system.

Solution

1. Preparation

Tools Required:
- OBD-II scanner
- Refrigerant pressure gauge
- Multimeter
- Socket set
- Torque wrench
Ensure the vehicle is parked on a level surface and the engine is off. Disconnect the battery for safety.

2. Check Electrical Connections

Inspect the wiring harness and connectors leading to the AC compressor for any signs of damage or corrosion.
Use a multimeter to test for voltage at the compressor connector when the AC is turned on.

3. Test the Compressor Clutch

If the clutch does not engage, check the clutch relay and fuse.
Replace the relay or fuse if they are faulty.
If the relay and fuse are good, proceed to replace the compressor if necessary.

4. Replace the AC Compressor (if necessary)

Remove the Old Compressor:
- Disconnect the refrigerant lines using proper tools, ensuring to recover the refrigerant.
- Unscrew the mounting bolts and remove the compressor from the engine bay.
Install the New Compressor:
- Position the new compressor in place and tighten mounting bolts to manufacturer specifications (typically 15-20 ft-lb).
- Reconnect the refrigerant lines and ensure all seals are in good condition to prevent leaks.

5. Recharge the AC System

Use a refrigerant recovery machine to pull a vacuum on the AC system for at least 30 minutes.
Recharge the system with the correct amount of refrigerant as specified in the owner's manual.