P1464 Mazda Code - Air Conditioning Demand Out Of Self Test Range
Quick Answer
The Diagnostic Trouble Code (DTC) P1464 can be set if A/C or defroster is on during Key On Engine Off (KOEO) or Key On Engine Running (KOER) self-test. Common causes include Faulty A/C Demand Switch, Faulty Wide Open Throttle A/C Cutoff (WAC) Relay, Wide Open Throttle A/C Cutoff Relay harness is open or shorted. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P1464 Mazda indicates Air Conditioning Demand Out Of Self Test Range.
- Common causes
- Common causes include Faulty A/C Demand Switch, Faulty Wide Open Throttle A/C Cutoff (WAC) Relay, Wide Open Throttle A/C Cutoff Relay harness is open or shorted.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code P1464 Mazda Description
What are the Possible Causes of the DTC P1464 Mazda?
- Faulty A/C Demand Switch
- Faulty Wide Open Throttle A/C Cutoff (WAC) Relay
- Wide Open Throttle A/C Cutoff Relay harness is open or shorted
- Wide Open Throttle A/C Cutoff Relay circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P1464 Mazda?
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 P1464 Mazda 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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Frequently Asked Questions about P1464 Mazda Code
1. What does OBDII code P1464 mean on a Mazda?
P1464 indicates that the air conditioning demand signal is out of the expected range during a self-test, typically due to a fault in the A/C electrical system.
2. What are the common symptoms of a P1464 code on a Mazda?
Symptoms may include the air conditioning not functioning properly, intermittent A/C operation, or the A/C system failing to turn on.
3. What causes the P1464 code to appear on a Mazda?
The code can be triggered by a faulty A/C switch, damaged wiring or connectors in the A/C circuit, a malfunctioning control module, or an issue with the A/C system pressure sensor.
4. How is the P1464 code diagnosed on a Mazda?
A technician will use a scan tool to confirm the code, inspect the A/C switch and wiring, check the voltage at the A/C demand circuit, and possibly perform a functional test of the A/C system.
5. Can I continue driving my Mazda with a P1464 code?
Yes, you can drive your vehicle, but the air conditioning system may not function properly until the issue is resolved.
6. How do I fix the P1464 code on a Mazda?
Repairs may involve replacing the A/C switch, repairing damaged wiring or connectors, recalibrating the control module, or addressing any faults in the A/C system.
7. Is the P1464 code specific to Mazdas?
No, this code can appear on other vehicles as well, but the diagnostic and repair procedures may vary.
8. Can a low refrigerant level cause the P1464 code on a Mazda?
While low refrigerant itself might not directly trigger P1464, it can lead to A/C system malfunctions that contribute to the code appearing.
9. How much does it cost to fix a P1464 code on a Mazda?
The repair cost depends on the root cause but typically ranges from $100 to $500, including diagnostics and part replacement.
10. Can a faulty A/C relay cause the P1464 code on a Mazda?
Yes, a defective A/C relay can disrupt the demand signal and trigger the P1464 code.
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