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my Genesis G70 IG (2017-2023) has no power to the AC, what's wrong? - Genesis G70
Home/Cars/Genesis/G70/IG (2017-2023)/my Genesis G70 IG (2017-2023) has no power to the AC, what's wrong?

my Genesis G70 IG (2017-2023) has no power to the AC, what's wrong?

Genesis G70 IG (2017-2023)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
525 words

Problem Statement

Learn how to diagnose and fix AC power loss in Genesis G70 (2017-2023). 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.
  • •Allow the engine to cool before performing any inspections near the engine compartment.

Symptoms

  • •AC system not blowing cold air
  • •AC control panel lights not illuminating
  • •No sound from the AC compressor
  • •Blower motor not operating
  • •Check engine light illuminated

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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
  • •Multimeter
  • •Fuse puller
  • •Pliers
  • •Electrical contact cleaner

Parts Required

  • •AC fuse (if blown)
  • •AC relay (if faulty)
  • •Blower motor (if faulty)

Additional Information

Affected Component
HVAC
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Disconnect the battery to ensure safety while working on electrical systems.
2. Inspect and Replace AC Fuse
  • Locate the fuse box, typically found under the dashboard or in the engine compartment.
  • Remove the AC fuse using a fuse puller or pliers.
  • Inspect the fuse for continuity; replace it if blown.
3. Check AC Relay
  • Locate the AC relay in the fuse box.
  • Remove the relay and test it with a multimeter for continuity.
  • If faulty, replace it with a new relay.
4. Test AC Compressor Voltage
  • Reconnect the battery.
  • With the AC turned on, use a multimeter to measure voltage at the compressor connector.
  • If no voltage is present, trace wiring back to the relay and control module for faults.
5. Inspect AC Control Module
  • Disconnect the AC control module connector.
  • Check for bent pins or corrosion in the connector.
  • Clean any corrosion with electrical contact cleaner and reconnect.
6. Test Blower Motor
  • Disconnect the blower motor connector.
  • Apply direct battery voltage to the motor to check if it operates.
  • If it does not operate, replace the blower motor.