AutoCodes – Generic – P1464

P1464 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 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: P1464 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: 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 35,722

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 Jul 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1464 Description

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. The DTC P1464 is set when ACCS input to Powertrain Control Module (PCM) was high during self-test.

OBDII Code P1464 - Air Conditioning Demand Out Of Self Test Range - AutoCodes.com — P1464 Code - Air Conditioning Demand Out Of Self Test Range

What does this mean?

What are the Possible Causes of the DTC P1464?

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?

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 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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Information for Specific Makes

P1464 BMW — Heated Catalyst Battery Temperature Sensor 2 Electrical
P1464 Ford — Air Conditioning Demand Out Of Self Test Range
P1464 Infiniti — Fuel Level Sensor
P1464 Lincoln — Air Conditioning Demand Out Of Self Test Range
P1464 Mazda — Air Conditioning Demand Out Of Self Test Range
P1464 Mercury — Air Conditioning Demand Out Of Self Test Range
P1464 MINI — Heated Catalyst Battery Temperature Sensor 2 Electrical
P1464 Nissan — Fuel Level Sensor

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.